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  1. minnbuckeye

    Calamites

    Just finished prepping out this Calamites, found a month ago. It was large and colorful, worthy of posting a picture. It came from Ambridge, Pennsylvania. This is mahoning shale/ Pennsylvanian. I will include a few of the other finds too. A close up showing the details present. Unidentifiable twigs and small branches were common Occasional seed pods were found Fern leaves of multiple species were easy to find. Not the best one found. More of a typical one at this site. The iron present stains things, producing colorful patterns in the matrix and fossils.
  2. paleoflor

    Calamites rugosus

    From the album: Steinbruch Piesberg (Osnabrück, Germany)

    © T.K.T. Wolterbeek

  3. ChicagolandFossilGuy

    Mazon Creek fossil IDs

    Hi guys. I'm looking for some more help identifying these Mazon Creek (Illinois) fossils. I think one is some sort of calamites? Thanks for your time.
  4. paleoflor

    Calamites sp.

    From the album: Steinbruch Piesberg (Osnabrück, Germany)

    © T.K.T. Wolterbeek

  5. paleoflor

    Calamites sp.

    From the album: Steinbruch Piesberg (Osnabrück, Germany)

    © T.K.T. Wolterbeek

  6. paleoflor

    Calamites undulatus Sternberg 1825

    From the album: Steinbruch Piesberg (Osnabrück, Germany)

    © T.K.T. Wolterbeek

  7. paleoflor

    Calamites sachsei Stur 1878

    From the album: Steinbruch Piesberg (Osnabrück, Germany)

    © (c) T.K.T. Wolterbeek

  8. historianmichael

    Calamites or Cordaites?

    Many years ago my dad and I visited St. Clair, PA to collect its famed Late Pennsylvanian plant material. With the closure of St. Clair to public collecting, several years ago, we went to the next best place: Centralia, PA. In going back through our finds to ascribe a proper classification to them, I have come across several finds that I believe could either be Calamites stems or Cordaites leaves. The issue is that these fossils preserved without much detail to go on. In doing some research online and on here, I think I have figured it out, but I am not completely sure. Any help is greatly appreciated. Thanks! At St. Clair, we found several of these wide impressions. It appears to lack any diagnostic features to make it easily identifiable. Calamites stems? At Centralia, we found this not-as-wide impression. This one does have some detail to it. You can see what looks to be veins running vertically. Cordaites leaf piece? This issue though is that we also found this larger impression at Centralia that I also believe to be a Cordaites leaf. This similarly has vertical lines, but they are somewhat different from the other piece. I don't think this is a Calamites stem impression because of its width and the fact it is missing recognizable horizontal breaks. But perhaps I have this all mixed up.
  9. historianmichael

    Annularia or Asterophyllites?

    A couple of years ago I visited a site in Central Pennsylvania with exposure to the Late Pennsylvanian Llewellyn Formation. I found a lot of Annularia and Calamites pieces. I also found this single whirl. I initially chalked it up as just another piece of Annularia. I recently came across the publication "Fossil Plants From the Anthracite Coal Fields of Eastern Pennsylvania." The publication has been very helpful in assisting me put a species identifications with all of my finds from the various Llewellyn Formation sites I have been to. When I tried to compare this piece to the images of Annularia in the publication they didn't quite fit. That got me thinking that it could actually be Asterophyllites equisetiformis. However, I haven't seen an example of Asterophyllites that has this pinwheel look to it- most of the examples I have seen are preserved with their leaves pointing upwards, not outwards. I have also attached an image of what I believe to be Annularia stellata that I found at the same site. You can see the clear differences between these pieces. Any help is greatly appreciated. Thanks! Asterophyllites equisetiformis? Annularia stellata
  10. I_gotta_rock

    Calamites

    From the album: Plants of the Lewellyn Formation

    Giant horsetail plant Columbia County, Pennsylvania Carboniferous Lewellyn Formation
  11. ByronNWT

    Calamites

    From Mattson(Mississippian) or Fantasque formation(Pennsylvanian) just outside of Fort Laird NWT Canada. these were quick snap shots before i had to jump in helicopter from a fire tower on top of a small mountain. i am guessing based of discription it is Calamites cistii? did my own research so could be way off. From what i have read this is one of the only Carboniferous deposits in the entire region.
  12. Plant lovers rejoice! New Species of Annularia in Portugal described. Also had a fossil insect gall https://sciencex.com/news/2020-04-species-ancient-horsetail-gall-reveals.html
  13. Hello all Since I can't go to school for a couple of weeks I have time to catch up with some ID's. Most of these plants and pieces of wood have been in my collection for years, thinking it's impossible to ID these because of lack of location. All of these come from old collections without labelling. I know next to nothing about plants or wood. 1: No location at all. Piece is about 10 cm wide. I am not 100% this is actually wood and not just a mineral, but I think these are growth rings. 2: This piece has been in my family for the past 3 generations, without any info. About 10 cm wide. 3: Nothing is known about this piece. It's very heavy. About 16 cm. 4: Also nothing is known about this piece. I think this is called Calamites, but again not sure. It's very long (I have a joining piece so total length is about 15 cm) and thin. 5: Also no location. Largest fern piece is about 7 cm in length.
  14. Conditions in Western PA have been unusually warm recently, with highs in the 40s and 50s. I decided to take advantage of this warm spell by getting a little bit of fossil hunting in. I decided to do a hunt focused on plants as I’ve been hunting for vertebrates for the better part of the last year and a half and, although I could never get tired of vertebrates I thought some variety was well overdue. So I headed to one of my favorite plant localities in the area. It is located in the Connellsville Sandstone of the Casselman Formation, which is in turn the upper half of the Conemaugh Group. The sandstone is around 305 million years old. The Casselman Formation holds the record of the tail end of one of the largest plant extinctions in our earths history. The prolonged wetness that had existed for much of the Pennsylvanian gave way to dryer conditions, and, as a result, the lycopsid forests fragmented. Many of these lycopsids went extinct during this event, which is known as the Carboniferous Rainforest Collapse. Conifers took advantage of these newly opened ecological niches. Their fossils have been found in this area, although I have never personally found them. Anyway, on to the fossils. Today I mostly found partial Pecopteris fronds, Neuropteris pinnules and Annularia leaflets. I’m going to include some of my better finds from other trips as well, as this trip was rather unproductive. Pictured below is the best Annularia I found today. Or Asterophyllites. I’m not sure. We’ll just go with Calamites leaves for now.
  15. BobWill

    Mystery from the Mingus

    I saw this in a huge sandstone rock in the Pennsylvanian deposits of Palo Pinto County, Texas. It is either the Mingus or Brazos River Formation where I saw lots of wood preserved. Calamites and stigmaria everywhere but also a brachiopod in a lower layer. It may just be geologic shatter marks but I can't make any sense out of it at all. This is the Strawn Group of the Des Moines Series. The whole photo shows a space about 20 X 30 cm.
  16. Deep in the heart of Pennsylvania's coal country runs the Carboniferous Lewellyn Formation. Once a vast tract of swampland, the area was home to 100 ft. tall Calamites (an extinct relative of modern herbaceous horsetails), giant tree ferns and other enormous plants, plus proportionally large insects. The conditions during the intervening millennia were just right for the plants to break down into iron-based minerals, including pyrophyllite and kaolinite, leaving a coating of white powder over the impressions in the rock. In rare spots, the iron minerals come in yellow, orange or red, too. All this makes the fossils stand out in sharp contrast to the dark, gray shale matrix. This is not a place for the timid. The shale is on a steep, slick slope covered in loose scree. The trees that look like good hand-holds are dead and rotten. Below the surface, fires burn in the coal veins, creating a sinkhole hazard all over the ghost town and on to the neighboring towns. However, the place I was hunting is definitely a beaten path these days, so there is probably a low risk of invisible disaster. I always say that no rock is worth your life, but that doesn't stop me from living a little dangerously. I went there for the first time last month. It was a short stop close to dusk. The fog was thick and the rocks were wet. The white powder was hard to make out in the gloom. Today, the light was good, the rocks were dry and the hunting was good!
  17. Found this antiquing. Was only marked "petrified rock"..It is black & charcoal gray in color with a vertical ribbed texture and some rounded ends. Measures 6.5" tall x 5.5" x 4" and weighs 8lbs 1.1 oz. Is it petrified wood ? Petrified cactus? Or something else? It's only letting me upload 1 photo. Took pics with phone and guess their too big. Will try to post more.
  18. fossilized6s

    Megalichthys of Illinois

    Yesterday i found a very rare Megalichthys jaw with dozens of teeth still attached in the Carboniferous of Illinois, USA. This is possibly the best known example of this fish found in Illinois. Not sure yet though. I still need to do more research. You can see four larger teeth in cross-section on the matrix waiting to be prepped out. Then there are smaller teeth in-between the larger ones, maybe 4× smaller. I also found several large scales. I'll attach the best one. All of this material still needs a proper repair and prep job. The preservation on this material is just stunning. I'm not sure it could get much better. These bone fragments and scales are often found with Orthacanthus teeth and Calamites. So it gives us such a beautiful snapshot of the environment at the time. Just awesome! Happy hunting
  19. Bguild

    Calamites

    From the album: Massachusetts Fossils

    Calamites sp. Found in 2018 in North Attleborough, Massachusetts.
  20. Northernfellsfossils

    Megalichthys Linocut Print

    On finding a Megalichthys scale fossil from the Late Carboniferous in my local stream I designed, carved and printed a lino-block of the carnivorous freshwater fish. In the same slab of rock that the scale was found were Lepidodendron and Calamites fossils that would have been deposited at the bottom of the coal swamp. I would like to have thought of this fish hiding in the murky waters alongside these plants and I based my reconstruction on this. I plan to do a series of three including Rhizodopsis and Rhabdoderma, alongside their respective surrounding vegetation. Credit where credit is due the general proportions and pose of the fish are based on a reconstruction by ДиБгд as seen on Megalichthys' Wikipedia page.
  21. From the album: MY FOSSIL Collection - Dpaul7

    Calamites Fossil Blue Creek Seam, North central Alabama Pennsylvanian Age (~ 320 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. Further organ genera belonging to sphenophytes include: (1) Arthropitys (stems which are preserved in a mineralised form (2) Astromyelon (permineralised rhizomes, distinguished from Arthropitys by the absence of a carinal canal) (3) Annularia and Asterophylites (form genera of leaf-whorls which are paraphyletic). Kingdom: Plantae Phylum: Pteridophyta Class: Equisetopsida Order: Equisetales Family: †Calamitaceae Genus: †Calamites
  22. From the album: MY FOSSIL Collection - Dpaul7

    Calamites Fossil Blue Creek Seam, North central Alabama Pennsylvanian Age (~ 320 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. Further organ genera belonging to sphenophytes include: (1) Arthropitys (stems which are preserved in a mineralised form (2) Astromyelon (permineralised rhizomes, distinguished from Arthropitys by the absence of a carinal canal) (3) Annularia and Asterophylites (form genera of leaf-whorls which are paraphyletic). Kingdom: Plantae Phylum: Pteridophyta Class: Equisetopsida Order: Equisetales Family: †Calamitaceae Genus: †Calamites
  23. From the album: MY FOSSIL Collection - Dpaul7

    Calamites Fossil Blue Creek Seam, North central Alabama Pennsylvanian Age (~ 320 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. Further organ genera belonging to sphenophytes include: (1) Arthropitys (stems which are preserved in a mineralised form (2) Astromyelon (permineralised rhizomes, distinguished from Arthropitys by the absence of a carinal canal) (3) Annularia and Asterophylites (form genera of leaf-whorls which are paraphyletic). Kingdom: Plantae Phylum: Pteridophyta Class: Equisetopsida Order: Equisetales Family: †Calamitaceae Genus: †Calamites
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