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Showing results for tags 'echinoderm'.
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Only for who is familiar with decalcified material. Upper ordovician, Italy. Scale bar 5mm. Decalcified specimen are preserved as the internal and the external mould, so the calcified part occupied the space between the two moulds. On the left side: the two moulds of the first specimen On the right side: only one mould available of another specimen (I guess conspecific), worst preservation. Any idea of what could be?
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Found this Paleozoic echinoderm. I’ve found thousands of crinoid bits but nothing like this.
SilurianSalamander posted a topic in Fossil ID
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I have had this sand dollar in my collection for forever, I alway keep it with a modern one. I have no info on it and it was given to me from a friend. Any ID and possible location would be appreciated.
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Echinoderm identification help please! Polished cross-section in the Kimmswick Limestone (Late Ordovician: Katian; Missouri, USA) used as facing stone at Missouri Botanical Garden. Possibly the paracrinoid Implicaticystis (once known as Comarocystites)? Specimen is ~25 mm across.
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Hi everyone, My son found yesterday on a beach this rock and it looks like a fossil of something. Could you please have a look and let me know what you think? Is this a fossil? Many thanks Mariah
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Ever since the Cambrian Explosion, the continent of Laurentia (what is today Eastern North America and Greenland) had been colliding with Baltica (what is today Northern Europe and the Barents Sea). They clashed over millions of years, causing volcanic eruptions, earthquakes, and the usual, creating new large bodies of land. Still, at the same time, another miniature continent was forming, which would eventually become one with the two. This tiny landmass was called Avalonia, a long island that today makes up the middle to the upper eastern coastline of the U.S. and Maritime Canada. This body -
I found this fossil at the Penn Dixie site in Western NY (near the creek running through the center) . I've been all over their website, but I can't find anything that looks like this. Sorry the photo isn't larger, my microscope camera isn't set up yet. I think it has 5 part radial symmetry. The lines on the stumpy 'arms' are raised ridges that are small at the tips and get longer as they go towards the center of the beastie. The fossil is .35 Inches from the tip of one stubby leg to the approximate center. I have seen others at this site, but not often. I would rate this type of fossil i
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From the album: Florida Invertebrates
Arbacia imprcera Pio-Pleistocene Sarasota County -
Unknown Ocala Limestone Echinoderms. Sacha, this one is for you!
minnbuckeye posted a topic in Fossil ID
Last week, I had the opportunity to explore a pile of gravel deposited along a road just north of Tampa, Florida. Echinoderms of many types were found weathered out. Some I have IDs on but others perplex me. The condition of many may make identification improbable. But who knows!! @Sacha, unfortunately, this road experience was not nearly as nice as my trip with you. But I feel my finds are of a similar nature. The first one is moderate in size, fairly round and is thick. Agassizia floridana????? The second I am sure is Eupatagus antillarum. The- 1 reply
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I know how Crinoid columnals looks like, but which are the features of other echinoderm classes (Rhombifera, Diploporita,...)? Image of a crinoid columnal mould (scale bar 5mm).
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I collected this specimen a while ago from the Liberty Formation (Upper Ordovician, Cincinnatian) of Indiana. Honestly, I have no idea what the heck it is. I posted this elsewhere and some thought it might be a strange echinoderm fragment, others thought it might not even be a fossil. Anyone seem anything similar before?
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Upper ordovician, Italy. Decalcified specimen (it means that you see the mould). Scale bar 5mm. These are 3 different specimens, but I guess of the same species. At first thought they seem a blastoid oral area (never reported blastoids from this formation). But, as 2 of 3 of these specimens are inscribed in a circle, I was thinking about a particular echinoderm stem mould.
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Upper ordovician, n-e Italy. Scale bar 5mm. I'm not sure of crinoid stem (12-13) or ambulacra, Rhombifera stem, Rhombifera stem lumen,...(6-14)
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From the album: C&D Canal Micro Fossils
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From the album: C&D Canal Micro Fossils
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Hello, I found these urchins near Jebel Hafeet in Al Ain, United Arab Emirates. I think they come from the eocene, but I am not quite sure. I forgot to add a ruler in the photos, sorry, just know the largest one is just under 4 cm long. I would appreciate any id's. I will also be posting a picture on the fossil preparation section of the forum to see if I can clean them up a bit.
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Fossil hunting trip to Cap Blanc Nez (Cretaceous of France)
ziggycardon posted a topic in Fossil Hunting Trips
Hi everyone, Last week after getting lots of recommendations from people I spend a couple of days at Cap Blanc Nez in France to look for some fossils. And while it wasn't to most bountyfull hunt I did have a lot of fun and I was very pleased with the little finds that I managed to do. We had very nice weather, it was sunny and the temperature was just perfect for fossil hunting, and the cliffs and beach (and landscape overall) were absolutely stunning. The fossils in Cap Blanc Nez date back to the Cretaceous and there are deposits from the Turonian, Cenoma -
Found this yesterday in Mason County, Kentucky in the general vicinity of Maysville where Ordovician limestone (Bellevue Formation?) is exposed in the roadcuts. Not an expert but hunted enough to immediately appreciate the rarity of the find. After some preliminary research and a tentative identification (Carneyella ulrichi) I seek an expert review and confirmation/correction. These animals seem to be sufficiently rare that a firm ID shouldn't be left up to an avowed un-expert ... who knows little about the differentiating characteristics of edrioasteroids (or even echinoderms) to do more t
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Hello to all users! I found this little rock fragment (mudstone from the Tethys ocean floor I think) in a geosite at the Kozani-Grevena Geopark in greece .....I think that there is a fossil on it. Is it or not? And if yes what species is it? (Echinoderm maybe?) Thank you for your time!
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This specimen was found in the Maquoketa Formation (Upper Ordovician) of Minnesota. My best guess is part of an echinoderm (crinoid or cystoid calyx?) but I'm not sure, I've never found anything similar. Any thoughts?
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I had collected some fossils from Spring Branch, Texas from what I think is the Glen Rose fm near Canyon Lake and I'm wondering what all these little discs are. For some reason I thought they were called foraminifera but in looking on-line, I think that's not accurate. I'm not sure where I heard that these are called foraminifera. Perhaps someone told me that or, more likely, I misremembered something I read somewhere. In looking at Uncle Siphuncle's very, very, very helpful (Thank you. It's a must read!) pinned Comprehensive Guide heading this forum, it seems these little discs are calle
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From the album: Lime Creek Devonian Rockford Iowa
Nortonechinus primus a sea urchin - I suspects the spines is a bit more common than people thought but still rare. More overlooked due to its small size and resembles broken golf tees. -
I am hoping someone on the forum is familiar with Ordovician carpoids. i collected this specimen at a roadcut in Claremont Iowa. it is from the Maquoketa Formation. Any information on what species it might be would be greatly appreciated.
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From the album: C&D Canal Micro Fossils
