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  1. Diana747

    Fossilized (or not?) Sea urchin

    Dear friends, please advise. I found this sea urchin today, it looks like a petrified one. But it us very light, feels like wooden, and it floats. I found a fossilized sea urchin not so long ago, but that one is much heavier. So could you please advise, if this one is petrified, or what could happen with it? Thank you!
  2. Addition to another (earlier) post. Found some interesting fossils from the late Cretaceous in Europe. In the south of the Netherlands (Limburg), Cretaceous sediments occur. At and around the ‘Schneeberg’ (border between Vaals and Germany), the Kalksteen van Vijlen (Vijlen chalk), Orsbach Kreide (Orsbach chalk) and Kunrader Kalksteen (Kunrader chalk) or Vetschauer Kalksteen are present. Fossils from these sediments consist of belemnites (Belemnitella junior (Nowak, 1913), Belemnella (Pachybelemnella) sumensis (Jeletzky, 1949) and/or Belemnella (Pachybelemnella) cimbrica (Birkelund, 1957), some intermediate forms are described as Belemnella ex gr. sumensis/cimbrica, sea urchins (Echinocorys sp. including Echinocorys gr. conoidea (Goldfuss, 1829) and Cardiaster granulosus (Goldfuss, 1829), oysters (Pycnodonte vesicularis (Lamarck, 1806), shark teeth (for example Carcharias sp., Cretalamna lata (Agassiz, 1843), Paleohypotodus bronni (Agassiz, 1843), Squalicorax pristodontus (Agassiz, 1843) and Pseudocorax affinis (Münster in Agassiz, 1843) and other fossils. Many fossils are from the Vijlen Chalk (early Early to early Late Maastrichtian). Fossils from the Vijlen 0-3 and Vijlen 4-6 (Vijlen chalk) are approximately between 70.6 and 69.3 million years old. The basis of interval 0 of the Vijlen Member could be dated at 70.6 Ma. Lithology and bioclast contents for intervals 5 (upper part) and 6 of the Vijlen Member at Mamelis (Mamelis 62D-78) have indicated an age of 69.7-69.3 Ma. According to recent research the base of the Vijlen Member is dated at 70.4 Ma and the fossils from Vaals and nearby places could be between 70.4 (the base of the Vijlen Member) and 69.7 or 69.5 million years old (Lixhe 1 Hz. and mid-Lixe 1). Including the latest part of the late Late Maastrichtian, Cretaceous fossils from Limburg and its capital Maastricht are between 70.4 and 66.02 million years old. Some Cretaceous fossils. Belemnites (Belemnitella junior or Belemnella (Pachybelemnella) sp.), oysters (Pycnodonte vesicularis), small shark teeth (including possibly Paleohypotodus bronni), sea urchins (Echinocorys sp.) and one small sea urchin (possibly Echinogalerus belgicus (Lambert, 1898) plus one brachiopod. Internet https://www.somniosus.be/Homepage_set.htm Literature Birkelund, T. (1957). Upper Cretaceous belemnites from Denmark. Det Kongelige Danske Videnskabernes Selskab, Biologiske Skrifter, 9, 1–69, Copenhagen. Christensen, W.K. (1995). Belemnitella from the Upper Campanian and Lower Maastrichtian chalks of Norfolk, England. Special Papers in Palaeontology, 51, 1-84. London. Felder, P.J. & Bless, M.J.M. (1994). The Vijlen Chalk (early Early to early Late Maastrichtian) in its type area around Vijlen and Mamelis (southern Limburg, The Netherlands). Annales de la Société géologique de Belgique 116: 61–85. Felder, W.M. & Bosch, P.W. (2000). Geologie van Nederland, deel 5. Krijt van Zuid-Limburg. NITG TNO, Delft/ Utrecht: 192 pp. Gallagher, W. 1997. When Dinosaurs Roamed New Jersey. Rutgers University Press. Jagt, J.W.M. (2005). Stratigraphic ranges of mosasaurs in Belgium and the Netherlands (Late Cretaceous) and cephalopod-based correlations with North America. Netherlands Journal of Geosciences. 84. 10.1017/S0016774600021065. Jagt, J.W.M. (2012). Belemnitellid coleoids (Mollusca, Cephalopoda) from the type Maastrichtian, the Netherlands and Belgium. Scripta Geologica. Special Issue, 08, 93–112. Jagt, J.W.M, & Jagt-Yazykova, E.A. (2012). Stratigraphy of the type Maastrichtian – a synthesis. Scripta Geologica. Special Issue, 08, 5–32. Keutgen, N., Jagt, J.W., Felder, P., & Jagt-Yazykova, E. (2010). Stratigraphy of the upper Vijlen Member (Gulpen Formation; Maastrichtian) in northeast Belgium, the southeast Netherlands and the Aachen area (Germany), with special reference to belemnitellid cephalopods. Geologie En Mijnbouw, 89, 109-136. Jeletzky, J.A. (1949). Über den taxonomischen Wert einiger morphologischer Elemente des Rostrums der belemnitellenartigen Formen (Familie Belemnitellidae Pavlow, 1913), sowie über die Gattung Belemnella (Nowak, 1913,subg.) Jeletzky, 1941, ihre Phylogenie und einige Vertreter.Neues Jahrbuch für Mineralogie, Geologie und Paläontologie, B9, 257–287. Keutgen, N. (2011). The belemnite zonation of the uppermost Cretaceous in the Maastricht-AachenLiège, Brabant-Méhaigne and Mons areas (Belgium, southeast Netherlands). In: Jagt, J.W.M., Jagt-Jagt. Belemnitellid coleoids from the type Maastrichtian. Scripta Geol., Spec. Issue 8 (2012). Keutgen, N. (2018). A bioclast-based astronomical timescale for the Maastrichtian in the type area (southeast Netherlands, northeast Belgium) and stratigraphic implications: The legacy of P.J. Felder. Netherlands Journal of Geosciences, 97(4), 229-260. doi:10.1017/njg.2018.15 Nestler, H. (2002). Die Fossilien der Rügener Schreibkreide (4. überarbeitete und erweiterte Auflage). Die Neue Brehm-Bücherei Bd. 486., Hohenwarsleben (Westarp Wissenschaften-Verlagsgesellschaft mbH). Schulz, M.G. (1979). Morphometrisch-variationsstatistische Untersuchungen zur Phylogenie der Belemniten-Gattung Belemnella im Untermaastricht NW-Europas. Geologisches Jahrbuch, A47, 3–157. Van der Ham, R. & van Birgelen, M. (1992). Zeeëgels uit het Maastrichtien van de Schneeberg en omgeving (Aken, Duitsland). Natuurhistorisch Maandblad, 81(8/9), 139–153. Vellekoop, J. & Kaskes, P. & Sinnesael, M. & Huygh, J. & Déhais, T. & Jagt, J. & Speijer, R. & Claeys, P. (2022). A new age model and chemostratigraphic framework for the Maastrichtian type area (southeastern Netherlands, northeastern Belgium). Newsletters on Stratigraphy. 55. 10.1127/nos/2022/0703.
  3. Hello all, Found some fossils from the Cretaceous period in water. Around Vaals in the Netherlands, Maastrichtian sediments occur. The Kalksteen van Vijlen (Vijlen chalk), Orsbach Kreide (Orsbach chalk) and Kunrader Kalksteen (Kunrader chalk) or Vetschauer Kalksteen are present. Fossils from these sediments consist of belemnites (Belemnella (Pachybelemnella) sumensis (Jeletzky, 1949) and/or Belemnella (Pachybelemnella) cimbrica (Birkelund, 1957), some forms are described as Belemnella ex gr. sumensis/cimbrica and Belemnitella junior (Nowak, 1913), sea urchins (Echinocorys sp. including Echinocorys scutata (Leske, 1778) and Cardiaster granulosus (Goldfuss, 1829), oysters (Pycnodonte vesicularis (Lamarck, 1806), parts of or eroded shark teeth (for example Carcharias sp., Cretalamna lata (Agassiz, 1843), Squalicorax pristodontus (Agassiz, 1843) and Pseudocorax affinis (Münster in Agassiz, 1843). Many fossils are from the Vijlen Chalk (early Early to early Late Maastrichtian). Fossils from the Vijlen 0-3 and Vijlen 4-6 (Vijlen chalk) are approximately between 70.6 and 69.3 million years old (the basis of interval 0 of the Vijlen Member could be dated at 70.6 Ma). Lithology and bioclast contents for intervals 5 (upper part) and 6 of the Vijlen Member at Mamelis (Mamelis 62D-78) have indicated an age of 69.7-69.3 mya. Including the latest part of the late late Maastrichtian (Formatie van Maastricht), the fossils can be between 70.6 and 66 million years old. Internet https://www.somniosus.be/Homepage_set.htm Literature Birkelund, T. (1957). Upper Cretaceous belemnites from Denmark. Det Kongelige Danske Videnskabernes Selskab, Biologiske Skrifter, 9, 1–69, Copenhagen. Christensen, W.K. (1995). Belemnitella from the Upper Campanian and Lower Maastrichtian chalks of Norfolk, England. Special Papers in Palaeontology, 51, 1-84. London. Felder, P.J. & Bless, M.J.M. (1994). The Vijlen Chalk (early Early to early Late Maastrichtian) in its type area around Vijlen and Mamelis (southern Limburg, The Netherlands). Annales de la Société géologique de Belgique 116: 61–85. Felder, W.M. & Bosch, P.W. (2000). Geologie van Nederland, deel 5. Krijt van Zuid-Limburg. NITG TNO, Delft/ Utrecht: 192 pp. Jagt, J.W.M. (2005). Stratigraphic ranges of mosasaurs in Belgium and the Netherlands (Late Cretaceous) and cephalopod-based correlations with North America. Netherlands Journal of Geosciences. 84. 10.1017/S0016774600021065. Jagt, J.W.M. (2012). Belemnitellid coleoids (Mollusca, Cephalopoda) from the type Maastrichtian, the Netherlands and Belgium. Scripta Geologica. Special Issue, 08, 93–112. Jagt, J.W.M, & Jagt-Yazykova, E.A. (2012). Stratigraphy of the type Maastrichtian – a synthesis. Scripta Geologica. Special Issue, 08, 5–32. Keutgen, N., Jagt, J.W., Felder, P., & Jagt-Yazykova, E. (2010). Stratigraphy of the upper Vijlen Member (Gulpen Formation; Maastrichtian) in northeast Belgium, the southeast Netherlands and the Aachen area (Germany), with special reference to belemnitellid cephalopods. Geologie En Mijnbouw, 89, 109-136. Jeletzky, J.A. (1949). Über den taxonomischen Wert einiger morphologischer Elemente des Rostrums der belemnitellenartigen Formen (Familie Belemnitellidae Pavlow, 1913), sowie über die Gattung Belemnella (Nowak, 1913,subg.) Jeletzky, 1941, ihre Phylogenie und einige Vertreter.Neues Jahrbuch für Mineralogie, Geologie und Paläontologie, B9, 257–287. Keutgen, N. (2011). The belemnite zonation of the uppermost Cretaceous in the Maastricht-AachenLiège, Brabant-Méhaigne and Mons areas (Belgium, southeast Netherlands). In: Jagt, J.W.M., Jagt-Jagt. Belemnitellid coleoids from the type Maastrichtian. Scripta Geol., Spec. Issue 8 (2012). Keutgen, N. (2018). A bioclast-based astronomical timescale for the Maastrichtian in the type area (southeast Netherlands, northeast Belgium) and stratigraphic implications: The legacy of P.J. Felder. Netherlands Journal of Geosciences, 97(4), 229-260. doi:10.1017/njg.2018.15 Nestler, H. (2002). Die Fossilien der Rügener Schreibkreide (4. überarbeitete und erweiterte Auflage). Die Neue Brehm-Bücherei Bd. 486., Hohenwarsleben (Westarp Wissenschaften-Verlagsgesellschaft mbH). Schulz, M.G. (1979). Morphometrisch-variationsstatistische Untersuchungen zur Phylogenie der Belemniten-Gattung Belemnella im Untermaastricht NW-Europas. Geologisches Jahrbuch, A47, 3–157. Van der Ham, R. & van Birgelen, M. (1992). Zeeëgels uit het Maastrichtien van de Schneeberg en omgeving (Aken, Duitsland). Natuurhistorisch Maandblad, 81(8/9), 139–153. Description The Cretaceous fossils I found are numerous broken belemnite parts and almost complete ones (species Belemnella (P. sumensis/cimbrica or Belemnitella junior), three belemnite phragmocones, shark teeth (Cretalamna lata, a part of a Squalicorax sp. and other teeth, perhaps one or two Enchodus sp. teeth), one complete Cardiaster granulosus, one part of a oyster (Pycnodonte sp.), small bivalves and one gastropod (possibly Natica cretacea (Goldfuss, 1844) and Holocene or Pleistocene material (not on the photo). I also found a tooth that looks like a reptile or Mosasaur tooth (height around 1 cm). It is cone like and has a thicker root than the shark teeth. One of the fossils is also difficult to determine. It looks like a seed from a tree or other plant. Any ideas? Photo 1: overview of the fossils. Photo 2: some shark teeth, belemnite parts, phragmocones and the very small Mosasaur or reptile (?) tooth. Photo 3: some shark teeth. Photo 4: found the next day a more complete but eroded Squalicorax pristodontus (Agassiz, 1843). All of these teeth are very small, around 0.5-1 cm (only the Squalicorax tooth is a bit bigger).
  4. Hello all, Found some nice fossils. Around Vaals in Limburg (the Netherlands), Cretaceous sediments occur. The Kalksteen van Vijlen (Vijlen chalk), Orsbach Kreide (Orsbach chalk) and Kunrader Kalksteen (Kunrader chalk) or Vetschauer Kalksteen are present. Fossils from these sediments consist of belemnites (Belemnella (Pachybelemnella) sumensis (Jeletzky, 1949) and/or Belemnella (Pachybelemnella) cimbrica (Birkelund, 1957), some forms are described as Belemnella ex gr. sumensis/cimbrica and Belemnitella sp.), sea urchins (Echinocorys sp. including Echinocorys scutata (Leske, 1778) and Cardiaster granulosus (Goldfuss, 1829), oysters (Pycnodonte vesicularis (Lamarck, 1806), shark teeth (for example Carcharias sp., Cretalamna lata (Agassiz, 1843) and Pseudocorax affinis (Münster in Agassiz, 1843) and other fossils. Many fossils are from the Vijlen Chalk (early Early to early Late Maastrichtian). Fossils from the Vijlen 0-3 and Vijlen 4-6 (Vijlen chalk) are approximately between 70.6 and 69.3 million years old (the basis of interval 0 of the Vijlen Member could be dated at 70.6 Ma). Lithology and bioclast contents for intervals 5 (upper part) and 6 of the Vijlen Member at Mamelis (Mamelis 62D-78) have indicated an age of 69.7-69.3 mya. Including the latest part of the late late Maastrichtian (Formatie van Maastricht), fossils can be between 70.6 and 66 million years old. Internet https://www.somniosus.be/Homepage_set.htm Literature Birkelund, T. (1957). Upper Cretaceous belemnites from Denmark. Det Kongelige Danske Videnskabernes Selskab, Biologiske Skrifter, 9, 1–69, Copenhagen. Christensen, W.K. (1995). Belemnitella from the Upper Campanian and Lower Maastrichtian chalks of Norfolk, England. Special Papers in Palaeontology, 51, 1-84. London. Felder, P.J. & Bless, M.J.M. (1994). The Vijlen Chalk (early Early to early Late Maastrichtian) in its type area around Vijlen and Mamelis (southern Limburg, The Netherlands). Annales de la Société géologique de Belgique 116: 61–85. Felder, W.M. & Bosch, P.W. (2000). Geologie van Nederland, deel 5. Krijt van Zuid-Limburg. NITG TNO, Delft/ Utrecht: 192 pp. Jagt, J.W.M. (2005). Stratigraphic ranges of mosasaurs in Belgium and the Netherlands (Late Cretaceous) and cephalopod-based correlations with North America. Netherlands Journal of Geosciences. 84. 10.1017/S0016774600021065. Jagt, J.W.M. (2012). Belemnitellid coleoids (Mollusca, Cephalopoda) from the type Maastrichtian, the Netherlands and Belgium. Scripta Geologica. Special Issue, 08, 93–112. Jagt, J.W.M, & Jagt-Yazykova, E.A. (2012). Stratigraphy of the type Maastrichtian – a synthesis. Scripta Geologica. Special Issue, 08, 5–32. Keutgen, N., Jagt, J.W., Felder, P., & Jagt-Yazykova, E. (2010). Stratigraphy of the upper Vijlen Member (Gulpen Formation; Maastrichtian) in northeast Belgium, the southeast Netherlands and the Aachen area (Germany), with special reference to belemnitellid cephalopods. Geologie En Mijnbouw, 89, 109-136. Jeletzky, J.A. (1949). Über den taxonomischen Wert einiger morphologischer Elemente des Rostrums der belemnitellenartigen Formen (Familie Belemnitellidae Pavlow, 1913), sowie über die Gattung Belemnella (Nowak, 1913,subg.) Jeletzky, 1941, ihre Phylogenie und einige Vertreter.Neues Jahrbuch für Mineralogie, Geologie und Paläontologie, B9, 257–287. Keutgen, N. (2011). The belemnite zonation of the uppermost Cretaceous in the Maastricht-AachenLiège, Brabant-Méhaigne and Mons areas (Belgium, southeast Netherlands). In: Jagt, J.W.M., Jagt-Jagt. Belemnitellid coleoids from the type Maastrichtian. Scripta Geol., Spec. Issue 8 (2012). Keutgen, N. (2018). A bioclast-based astronomical timescale for the Maastrichtian in the type area (southeast Netherlands, northeast Belgium) and stratigraphic implications: The legacy of P.J. Felder. Netherlands Journal of Geosciences, 97(4), 229-260. doi:10.1017/njg.2018.15 Nestler, H. (2002). Die Fossilien der Rügener Schreibkreide (4. überarbeitete und erweiterte Auflage). Die Neue Brehm-Bücherei Bd. 486., Hohenwarsleben (Westarp Wissenschaften-Verlagsgesellschaft mbH). Schulz, M.G. (1979). Morphometrisch-variationsstatistische Untersuchungen zur Phylogenie der Belemniten-Gattung Belemnella im Untermaastricht NW-Europas. Geologisches Jahrbuch, A47, 3–157. Van der Ham, R. & van Birgelen, M. (1992). Zeeëgels uit het Maastrichtien van de Schneeberg en omgeving (Aken, Duitsland). Natuurhistorisch Maandblad, 81(8/9), 139–153.
  5. Hello all, Found some nice Cretaceous fossils in my area (Limburg). Most of the fossils are between 70.6 and 69.3 million years old. Fossils from the Vijlen Chalk (Vijlen 0-3 and Vijlen 4-6) are approximately between 70.6 and 69 million years old. Including the latest part of the late late Maastrichtian, the age for all late Cretaceous fossils from Limburg is 72-66 mya. -one belemnite phragmocone (Steinkern/internal mold/impression); -one part of a sea urchin spine; -two oysters (small). One Pycnodonte vesicularis (Lamarck, 1806) and one other oyster (same species?); -one sea urchin (possibly Cardiaster sp. From the Kalksteen van Kunrade (macrofossils are rare in this chalk).
  6. Yesterday another fossil hunt in Late Cretaceous sediments (early early Maastrichtian, perhaps some fossils from the late late Campanian are also present but possibly only early early Maastrichtian (earliest Maastrichtian). These sediments and the Formation itself is around 70-68 and/or 71-67 million years old. Found some black, brown and light coloured belemnites (often broken parts of the rostrum and one broken one embedded in chalk), some very small shark teeth (1mm-1 cm), and one big sea urchin in chalk (Cardiaster granulosus (Goldfuss, 1829). My girlfriend found the sea urchin and was very happy because it is the first Cardiaster sp. she found. All of these organisms lived in the Cretaceous sea that covered Europe between 70 and 66 million years ago (including during the end of the Cretaceous, the late late Maastrichtian).
  7. Fossilsforever

    Late Cretaceous fossils

    Today: fossil hunting in Cretaceous sediments of the Netherlands. Very good weather (warm) and good finds. Including one belemnite phragmocone (internal cast)! These fossils are from the early early Maastrichtian or latest late Campanian (70-67 mya and/or 70-68 mya). Names are included. Only the brachiopod/bivalve I don't know the species name.
  8. A few weeks ago I took the dog (our Nova Scotia duck tolling retriever) to the hills of southern Limburg (the Netherlands) to walk especially around Gulpen and the Malensbos. To look for fossilized sea urchins that can sometimes be found after rainfall. These sea urchins date from the Gulpener chalk (Cretaceous period). Taking the dog on a fossil hunt is wonderful. She enjoys any type of environment. Although it is sometimes annoying that the boss does not continue and just keeps digging. She forgets that I have to wait at every puddle because I have to swim again. In the evening she did her own find of the day, a hedgehog, also prickly. I told her I was looking for 'zeeegels'. I meant another 'egel'. She did her best . In Dutch we use the word 'egel' for both a hedgehog and sea urchin. I found many small pieces of sea urchin, only four that are presentable. These sea urchins are still unprocessed and need to be prepared. Difficult to distinguish the species, I personally think Cardiater sp. and Hemiaster sp. Definitely a successful day, for me and the dog
  9. Last sunday October 24th I decided to visit the old Andil clay quarry at Liesberg in Switzerland, just over two hours driving from where I live, to see what fossils I might find there. Now a nature reserve where collecting is tolerated as long as the natural parts are not disturbed, the deposits at this quarry, mined for cement production between 1934 and 1980, date to the Upper Callovian and Lower to Middle Oxfordian (source). It is thus stratigraphically - though not petrologically - comparable to the geology of Vaches Noires in Normandy, with which I'm much more familiar, albeit with the interesting variation that the bedding planes at this site have been uplifted and verticalised. The latter makes for an unusual experience working the mudstone layers in the middle of the quarry, and means that the oldest layers are to be found along the quarry's south wall (to the left if facing the quarry's back wall), whereas the youngest layers - most notably the Liesberg-layer, which geological limestone composition and embedded fauna of shells, sea urchins and crinoids is strikingly comparable to the Middle Oxfordian Coral Raq at Vaches Noires - are to be found on the north wall (to your right). A situational satellite map from Google Maps A commercial example of a beautiful Kosmoceras annulatum ammonite found in the quarry's Callovian layers Seen from the parking spot at the quarry entrance near the top of the mountain The buildings of the old quarry when you walk down from the parking spot to the quarry along a road with restricted access Entrance to the quarry with an informational sign explaining the geological significance of the locality, as well as tells you not to get your hopes up, as most fossils you're likely to find will be steinkern-fossils Spill heaps along the north wall, with the back wall in the distance, and a sign explaining the importance of the locality as a nature reserve The path to the back wall of the quarry can be extremely muddy, and searching for fossils along the quarry's steep slopes is an activity undertaken at your own risk Due to circumstances I arrived quite late in the day and only had a number of hours to search. However, I quickly concluded that the south wall (Callovian layers) and even the mudstone in the middle of the quarry (Lower Oxfordian) were not particularly fossiliferous, with a couple of hours of work only resulting in a corroded pyritised ammonite and a tiny fossil that may either be a crustacean or part of a sea urchin spine (if you know, please let me know). I did not find any fossils on the south wall, although the information sign at the entrance to the quarry had already forewarned that most of the fossils encountered would be steinkern fossils. I later picked up from a discussion between a solitary fossil hunter and another group of collectors, however, that this solitary hunter had found an ammonite towards the top of the Callovian slope two weeks earlier and had returned to collect it, only to find it gone. He hadn't found any new specimens, however. Interestingly, while the quarry was quite calm with only one or two other collectors for most of my time there, by the time I got ready to leave (around 17:30), the place all of a sudden became abuzz with groups of other fossil hunters. Vertical bedding planes at the quarry and the two finds I made in the Renggeri clays: a heavily corroded pyritised ammonite and an unidentified fossil that may be either a bit of crinoid, or may be crustacean? Following my lack of results (did I give up too early?) in the older layers of the quarry, one of my fellow fossil hunters suggested I check the quarry's northern slopes/spoil heaps, as there were plenty of smaller fossils to be found there. And, indeed, as soon as I stepped on these slopes I was able to pick up spine after sea urchin spine, stems and branches or crinoids, serpulids and even the occasional shell. The slopes were steep and it was hard to find a foothold, but at least I didn't have to return home empty handed. Looking back through the quarry from the spill heaps along the north wall Can you spot the fossils amongst the limestone blocks from (presumably) the Liesberg-layer? Looking at the south wall from the spill heaps Beautiful lighting when returning back to the car towards the end of the day Here are some of my finds of that day. Paracidaris florigemma echinoid/sea urchin spines; much more common and of better quality than I've found at Vaches Noires Millecrinus horridus crinoid/sea lily stem (left) and arm (right) segments Millecrinus horridus holdfast/root system (a special find for me) that I entered into Find of the Month contest Serpulid worm tubes (left) and evidence for parasitism on crinoids (right) Echinoids/sea urchins: a partial in matrix on the left and crushed and silicified specimens on the right Shells, from left to right: fragment of trigoniidae indet. (?Myophorella sp.), Galliennithyris galliennei brachiopod and a piece of an unidentified clam Section of horn coral
  10. Fossilsforever

    Cretaceous of Limburg

    Hello all, Today I found some very cool (and rare) Cretaceous fossils in Limburg (The Netherlands). Belemnites, one sea urchin (Echinocorys sp.) and 2 rare Phragmocones (from Belemnites) were also found (two on the left corner). And also sharkteeth! Can anyone help me with identifying the shark teeth? (max size is 1 cm). Kind regards, Ruben
  11. PesiMs

    Fossil Creek, Texas

    Finds from Buffalo Creek park on Fossil Creek in Texas. This is a very busy park and there are sometimes questionable people around. I did however meet a nice guy, looked like Gandolf, minus some teeth, who gave me my only unsquished sea urchin. How can you keep the top layers of the sea urchins from chipping off? First photo are ammonites and some pieces of ammonites. Second photo are my sea urchins, with one tiny bivalve and also some devil toenails, gryphea in a clump. Third photo gryphea. Fourth photo sea urchin. Fifth photo I don't know yet what it is, but it's pretty cool.
  12. Fossilsforever

    Cretaceous fossils (NL)

    Hello all, Found these really cool fossils (some weeks ago). The fossils are from the Cretaceous period (shallow marine environment covered Limburg - part of the Netherlands). The fossils are from the upper upper Campanian and lower Maastrichtien (73-69 and/or 72-69 and/or 72-68 mya). I and my girlfriend were searching for fossils and walking in a forest when we found two VERY LARGE echinoids (Echinocorys scutata (Leske, 1778). These are really big and the best ones I have in my collection (one is 9 a 10 cm). The other one is also really big, somewhat flatter, but not complete (missing parts and bottem damaged, also the details are not that really good preserved but overall, the specimen is a very cool and good find). My girlfriend found the biggest belemnite specimen I have found in the Netherlands (one 10,5 cm Belemnitella/Belemnella sp.) (big belemnite on the right). All in all a really cool trip!
  13. I found these sea urchin fossils, in the Cretaceous in the Atacama Desert, near Antofagasta, Chile in South America. I think they are genus Hemiaster.?
  14. Yan11

    How to ID Fossils

    So I've been collecting fossils for a few years now, i have a bunch of ammonites, sea urchins, mollusks and plants but I have no idea where can i learn what exact species they are. I'm wandering if there is any books or sites to which you can point me so I can gather some knowledge . I know there is an ID section in this site but I want to be able to tell what species I have found, myself. By the way I'm from Europe.
  15. So, I am formally stating my quest to find all of the echinoids (of Texas at least...let's not be silly) I live in Central Texas and we are blessed with an abundance of fossils. My first fossiking was in Cherry Creek, behind my house, in Austin. Although I did not really do much since those early days, now it has become my main hobby. I have collected a pretty dang nice collection of all kinds of Cretaceous creatures but echinoids are my favorite with ammonites a close second. I have decided to make it my goal to find all the species of Texas Echies I can find in my lifetime. So far I have hundreds of heart urchins, (Hemiaster, Pliotaxaster, Macraster and Heteraster), a fair number of Loriolas and Salenias, a couple of Coenholectypus and Phymostomas and one very very worn Tetragramma. I have been making forays to Canyon Lake to find some of the more "unusual" urchins. These are my finds of the last couple of weeks. They are not great specimens but I am totally excited about them anyways. Hopefully I will eventually find some better quality ones, but hey, gotta start somewhere. For an avid amateur like myself (who is still trying to figure out how to recognize formations and zones and not having much luck at it) its exciting to stumble across something a bit different. Goniopygus and Pygopyrinas
  16. Shellseeker

    French Sand Dollars

    Recently I purchased France sand dollars from @Coco. See this thread http://www.thefossilforum.com/index.php?/topic/92032-diverse-french-fossils-to-be-sold/ The 5 Parascutella_producta arrived Tuesday safe and sound with well designed packaging. One was a double and Coco added a sixth that she had polished on her club's water based buffing machine. In addition, a bonus of a little sea urchin Arbacina monilis was unexpected. I was greatly pleased for an excellent transaction. Polished Parascutella_producta Arbacina monilis Now I must figure out how to remove the sand-limestone like Coco did. I have a friend who has a vast collection of echinoderms and asked for advice. He uses no mechanical device beyond water and a knife and he has cleaned thousands of fossils, which he shows off at Fossil Club shows. It seems that there is only a light covering of sand_limestone so I will try his method on one of my 5. In Process. I also have a dremel and a compressor-air blaster which I have never used. Maybe I will get to them. My thanks to Coco, for beautiful new additions to my collection. I'll put the one she polished in a riker box and see if I can match the beauty on one of the others. Jack
  17. Herb

    E4 M.Jur Psephechinus serratus

    From the album: Echinoderms through the Ages

    Psephehinnus serratus M.Jurassic Degre,Sarthe,France

    © copyright by Herb Miracle

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