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Found 465 results

  1. Hi everyone. I recently visited a quarry at the north of Spain (more specifically a geographical area called "El Bierzo", famous for its fossils from the carboniferous era) and I found this one, which looks like tree bark with some particular marks. I have found several well preserved fossils at the same quarry but I will upload the pictures later. I have been looking for information about this one in particular but I haven't found out what type of tree it is, has anybody seen this before? Thank you very much!
  2. I've not had a chance to post my finds here in a while but over the past few months I've found some new specimens of Lower Carboniferous/Mississippian marine shark teeth I wanted to share! These were collected at various sites in the Midland Valley of Scotland from the Blackhall Limestone, an extensive formation with interesting variations in fauna at each different locality. Ctenoptychius sp. Anterior tooth in lingual view, 6mmx7mm.
  3. In between all of the 4th of July weekend barbecues I was able to make it down to Cory's Lane, Rhode Island for a few hours of shale splitting. The day started out slow with only a few small plant imprints found, but I eventually managed to rip up a 5 foot slab of rock with a larger fern section on one end of it. After cutting the slab down to a little over a foot and a half in length this Pecopteris arborescens manages to go down as the largest fern I've found at this locality! It was a nice start to the long weekend, but the real win was the awesome weather .
  4. Carboniferous Nut?

    After hunting through some loose sediment a few days ago, I dug up something that looks very much like an acorn/nut at first glance. I come across lots of compressed plant material and the occasional 3D fossil, but this is a pretty unique one. The area is very close to a soft rock site of Duckmantian deposits from Carboniferous limestone in north Wales, UK. I can't find much to identify exactly what it might be....so over to you guys!
  5. Hi, I've started to do a little exploring around the lower Hunter. Started off with some of the more well known sites mention elsewhere in this forum, also some of the fossil localities marked on the 1;100,000 geological series (Camberwell, Dungog, Bulahdelah) http://www.resourcesandenergy.nsw.gov.au/miners-and-explorers/geoscience-information/products-and-data/maps/geological-maps/1-100-000 The explanatory notes focus on geology, but also give a little info on fossils. Some localities yield very little, others more rewarding. My first Trilobite (Pygidium?), from the Williams River, (Bonnington Formation, early Carboniferous, 340Ma). Not that easy to find, took a lot of rock splitting. On the left, fragmented Crinoids, from the Williams River. On the right, Crinoid (arm with pinnules?) and a Bryozoan, from Cedar Tree Creek,(Ararat formation, early Carboniferous, 350Ma). Williams River has quite a bit of marine fauna, but it is mostly fragmented or crushed. In some rocks it forms a layer 5mm thick. I could use a little help with this one! On the right is a "piece of shell" I picked up at Cedar Tree Creek, it was unattached on a sandy/pebbly bank. I was going to pass it by, thinking it a modern species. But not being sure, put it in my bag ïncase". On the left is a specimen from Kitchener, (Branxton formation, mid Permian, 265Ma). Uncanny resemblance! Is there enough of it for ID? If it is the same, is it likely to have made it thru the extinction event to modern times? My best guess is Spiriferid, (Neospirifer??), but only based on the size and fine plications. Most Spiriferid became extinct at the end of the Permian. Cheers, Mike.
  6. Here are a couple of "old" pieces from St. Clair that I found. The first one is a faint trace that I think is Pectopteris but I find it so rarely at St. Clair I can't tell for sure. What is throwing me off is that the leaflets are getting longer as they progress along the rachis whereas I have always thought that Pectopteris had a consistent leaflet length along the whole leaf. Then the second piece is a cluster of leaves/leaflets that don't match anything I've seen before. The tips of the leaves are not pointed enough for Alethopteris and not wide enough for Neuropteris. Any suggestions are appreciated.
  7. Coal mountain

    I went back today to my fav coal mountain (not after war but before Christmas ;)) Santa was very generous before time have a Merry Christmas!
  8. Tiny gastropod for id

    Hi. Found this small guy on the beach in Galway , Ireland. Upper Visean it's all I can say because beach find. Diameter is 8.2 mm. 4 whorls plain surface. I doubt it's Glabrocingulum sp. It's more like recent Natica shells. Any ideas?
  9. Fern non det.

    From the album Plants

    Fern non det. Upper Carboniferous Llewellyn Formation St. Clair Pennsylvania USA
  10. stratigraphic problem.

    Hi. Around year ago I was exploring the area around Lough Hackett 20 km north from Galway. I found few fossils on the shore with much different fauna than typical late Visean fauna in Co. Galway. The main problem here is stratigraphy. It's similar to british Avon group of Mendips. I think all of them are Tournaisian. Fig1. Large piece of iron-stained black crinoidal limestone.
  11. Carboniferous tree fern

    Two days ago I bought this nice fossil for a very convenient price at a local shop. Unfortunately, the seller could not remember key informations about this specimen, but he told me that it probably was Pecopteris and came from Germany. I want to identify it for a proper display alongside my other Carboniferous fossils, but I need again some help from a more experienced collector. In my opinion it is very similar, if not identical, to an other Acitheca (Pecopteris) polymorpha specimen I previously identified on an old topic thanks to this wonderful community. It may be the same plant, but I'm not sure. I am also skeptical about its German origin, is it reliable? Here is the upper side of the fossil: Pinnules detail from the other side (not exceptional quality, but I tried to make them more clear with a flashlight) Thanks in advance for your help!
  12. Fern non det.

    From the album Plants

    Fern non det. Upper Carboniferous Llewellyn Formation St. Clair Pennsylvania USA
  13. Actinocyathus floriformis

    Partly preserved in what I think is ferroan dolomite, with clear calcite in the voids which allows a 3D view of the structure in places. A common cerioid coral at this level, with a wide range of preservations. Formerly Lonsdaleia which is now restricted to branching versions.
  14. CORAL COLONY

    Now, i found this when i was seven or eight years old, on the cut down to the beach at Kilve in Somerset, South West England. It was buried in a band of blue/ grey clay in the Psiloceras planorbis zone of the Blue Lias , Lower Jurassic. Although i'd found many lovely fossils before this was my first exceptional, "WOW!" find. I still don't know what it is and that was 45 years ago. A colonial coral colony yes, but i don't think it can be Liassic? A derived fossil from the Devonian or Carboniferous seems likely, but which one? And it shows very little signs of having been transported huge distances, as it's quite a way to the nearest relevant outcrops of those ages. Here it is :
  15. Mystery Petalodont

    I found this little tooth a few months ago in the Coal Measures (Westphalian A) of Scotland in a fresh/brackish water deposit and thought it might be a Janassa sp. of some sort but now I'm not so sure, the only other Petalodont genus's I'm aware of in the British Coal Measures are Ageleodus and Ctenoptychius but they both have multicuspid crowns, the tooth is in labial view and is 11mm across. Any thoughts would be greatly appreciated!
  16. Alright everyone I'm pretty excited about this one. It's about an inch long and 1 1/2 inches wide.
  17. Mariopteris vs Sphenopteris

    As I am going through my boxes of findings from the Llewellyn formation at St. Clair, PA, I came across some more interesting plates. Normally I would call this short, rounded foliage "Sphenopteris" but some research with the PA Geological Survey's book "Fossil Plants from the Anthracite Coal Fields of Eastern Pennsylvania", General Geology Report 72, 1982, John Oleksyshyn, I'm thinking these might be more accurately called Mariopteris cf. lobata. Here is Figure 14 from the book that illustrates (plates A,B) what I think is a close match to what I have. The book also states that the specimens that are used for the plates come from St. Clair so it is known to occur there. Thoughts?
  18. Lit.: Cater, J., Briggs D. & Clarkson E. (1989): Shrimp-bearing sedimentary successions in the Lower Carboniferous (Dinantian) Cementstone and Oil Shale Groups of northern Britain. Transactions of the Royal Society of Edinburgh: Earth Sciences. Issue 1, 1989, p. 5-15 Schram, F. (1979): British Carboniferous Malacostraca. Fieldiana, 1979, Vol 40, p. 1-129 Volume 16: Fossil Fishes of Great Britain, Chapter 9: British Carboniferous fossil fishes sites Site: CHEESE BAY (GCR ID: 2916) Clark, N.D.L. (2013) Tealliocaris: a decapod crustacean from the Carboniferous of Scotland. Palaeodiversity 6:107-133 Jones, W. et al.(2016) The Proof is in the Pouch: Tealliocaris is a Peracarid. Palaeodiversity 9(1):75-88. 2016 https://doi.org/10.18476/pale.v9.a5
  19. Palaeoniscidae indet

    From the album Vertebrates

    Palaeoniscidae indet. "Bigeye" Early Carboniferous Serpukhovian Heath Shale Formation Bear Gulch Fergus County Montana USA
  20. From the album MY FOSSIL Collection - Dpaul7

    FOSSIL STEM CALAMITES SITE LOCATION: Westphalian deposits in the area around Mons in Belgium TIME PERIOD: Carboniferous (311-315 Million Years Ago) Data: Calamites is a genus of extinct arborescent (tree-like) horsetails to which the modern horsetails (genus Equisetum) are closely related. Unlike their herbaceous modern cousins, these plants were medium-sized trees, growing to heights of more than 30 meters (100 feet). They were components of the understories of coal swamps of the Carboniferous Period (around 360 to 300 million years ago). A number of organ taxa have been identified as part of a united organism, which has inherited the name Calamites in popular culture. Calamites correctly refers only to casts of the stem of Carboniferous/Permian sphenophytes, and as such is a form genus of little taxonomic value. There are two forms of casts, which can give mistaken impressions of the organisms. The most common is an internal cast of the hollow (or pith-filled) void in the centre of the trunk. This can cause some confusion: firstly, it must be remembered that a fossil was probably surrounded with 4-5 times its width in (unpreserved) vascular tissue, so the organisms were much wider than the internal casts preserved. Further, the fossil gets narrower as it attaches to a rhizoid, a place where one would expect there to be the highest concentration of vascular tissue (as this is where the peak transport occurs). However, because the fossil is a cast, the narrowing in fact represents a constriction of the cavity, into which vascular tubes encroach as they widen. The trunks of Calamites had a distinctive segmented, bamboo-like appearance and vertical ribbing. The branches, leaves and cones were all borne in whorls. The leaves were needle-shaped, with up to 25 per whorl. Their trunks produced secondary xylem, meaning they were made of wood. The vascular cambium of Calamites was unifacial, producing secondary xylem towards the stem center, but not secondary phloem. The stems of modern horsetails are typically hollow or contain numerous elongated air-filled sacs. Calamites was similar in that its trunk and stems were hollow, like wooden tubes. When these trunks buckled and broke, they could fill with sediment. This is the reason pith casts of the inside of Calamites stems are so common as fossils. Kingdom: Plantae Phylum: Pteridophyta Class: Equisetopsida Order: Equisetales Family: †Calamitaceae Genus: †Calamites
  21. From the album MY FOSSIL Collection - Dpaul7

    FOSSIL STEM CALAMITES SITE LOCATION: Westphalian deposits in the area around Mons in Belgium TIME PERIOD: Carboniferous (311-315 Million Years Ago) Data: Calamites is a genus of extinct arborescent (tree-like) horsetails to which the modern horsetails (genus Equisetum) are closely related. Unlike their herbaceous modern cousins, these plants were medium-sized trees, growing to heights of more than 30 meters (100 feet). They were components of the understories of coal swamps of the Carboniferous Period (around 360 to 300 million years ago). A number of organ taxa have been identified as part of a united organism, which has inherited the name Calamites in popular culture. Calamites correctly refers only to casts of the stem of Carboniferous/Permian sphenophytes, and as such is a form genus of little taxonomic value. There are two forms of casts, which can give mistaken impressions of the organisms. The most common is an internal cast of the hollow (or pith-filled) void in the centre of the trunk. This can cause some confusion: firstly, it must be remembered that a fossil was probably surrounded with 4-5 times its width in (unpreserved) vascular tissue, so the organisms were much wider than the internal casts preserved. Further, the fossil gets narrower as it attaches to a rhizoid, a place where one would expect there to be the highest concentration of vascular tissue (as this is where the peak transport occurs). However, because the fossil is a cast, the narrowing in fact represents a constriction of the cavity, into which vascular tubes encroach as they widen. The trunks of Calamites had a distinctive segmented, bamboo-like appearance and vertical ribbing. The branches, leaves and cones were all borne in whorls. The leaves were needle-shaped, with up to 25 per whorl. Their trunks produced secondary xylem, meaning they were made of wood. The vascular cambium of Calamites was unifacial, producing secondary xylem towards the stem center, but not secondary phloem. The stems of modern horsetails are typically hollow or contain numerous elongated air-filled sacs. Calamites was similar in that its trunk and stems were hollow, like wooden tubes. When these trunks buckled and broke, they could fill with sediment. This is the reason pith casts of the inside of Calamites stems are so common as fossils. Kingdom: Plantae Phylum: Pteridophyta Class: Equisetopsida Order: Equisetales Family: †Calamitaceae Genus: †Calamites
  22. From the album MY FOSSIL Collection - Dpaul7

    FOSSIL STEM CALAMITES SITE LOCATION: Westphalian deposits in the area around Mons in Belgium TIME PERIOD: Carboniferous (311-315 Million Years Ago) Data: Calamites is a genus of extinct arborescent (tree-like) horsetails to which the modern horsetails (genus Equisetum) are closely related. Unlike their herbaceous modern cousins, these plants were medium-sized trees, growing to heights of more than 30 meters (100 feet). They were components of the understories of coal swamps of the Carboniferous Period (around 360 to 300 million years ago). A number of organ taxa have been identified as part of a united organism, which has inherited the name Calamites in popular culture. Calamites correctly refers only to casts of the stem of Carboniferous/Permian sphenophytes, and as such is a form genus of little taxonomic value. There are two forms of casts, which can give mistaken impressions of the organisms. The most common is an internal cast of the hollow (or pith-filled) void in the centre of the trunk. This can cause some confusion: firstly, it must be remembered that a fossil was probably surrounded with 4-5 times its width in (unpreserved) vascular tissue, so the organisms were much wider than the internal casts preserved. Further, the fossil gets narrower as it attaches to a rhizoid, a place where one would expect there to be the highest concentration of vascular tissue (as this is where the peak transport occurs). However, because the fossil is a cast, the narrowing in fact represents a constriction of the cavity, into which vascular tubes encroach as they widen. The trunks of Calamites had a distinctive segmented, bamboo-like appearance and vertical ribbing. The branches, leaves and cones were all borne in whorls. The leaves were needle-shaped, with up to 25 per whorl. Their trunks produced secondary xylem, meaning they were made of wood. The vascular cambium of Calamites was unifacial, producing secondary xylem towards the stem center, but not secondary phloem. The stems of modern horsetails are typically hollow or contain numerous elongated air-filled sacs. Calamites was similar in that its trunk and stems were hollow, like wooden tubes. When these trunks buckled and broke, they could fill with sediment. This is the reason pith casts of the inside of Calamites stems are so common as fossils. Kingdom: Plantae Phylum: Pteridophyta Class: Equisetopsida Order: Equisetales Family: †Calamitaceae Genus: †Calamites
  23. I’ve stumbled across similar pieces of limestone throughout the years, but never have been able to figure out what they are. This piece of whatever it is is by far the largest and I honestly don’t have a clue as to what it is. This and similar finds only ever seem to have grooves or striations around the edges and nothing regular (at least to my perception) on the top or bottom which leads me to think they are probably of a geological origin, but I have never come across anything that matches these oddities... As stated in the tags I found this in a creek (near Auburn, Nebraska) which I know complicated things but other pieces of the same (or at least similar) material were from crushed up Oread limestone (Shawnee Group) from the Plattsmouth member which produces Carboniferous fossils. Any help would be appreciated! Curse the attachment size limit!
  24. Hi, These are from an old collection in Israel. We only know that they are from Germany- Carboniferous. Any help would be highly appreciated. Regards. Oz
  25. Cordaicarpus seeds or fish scales?

    Some more items from the Llwellyn formation at St. Clair that I'm trying to pin the ID down on. I have found oodles of these in some layers at St. Clair and the rounded shape makes me think they are Cordaicarpus seeds. However, there is not enough detail for me to be sure. Someone also suggested then could be fish scales but they have no blue tint (which is from the phosphates found in bones and scales) nor ornamentation. Thoughts?
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