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Showing results for tags 'echinoid'.
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Echinoid Plagiochasma texana Glen Rose Formation
JamieLynn posted a gallery image in Member Collections
From the album: Texas Cretaceous Fossils: Echinoids
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Echinoid Anorthopygus texanus Boracho Formation
JamieLynn posted a gallery image in Member Collections
From the album: Texas Cretaceous Fossils: Echinoids
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From the album: Texas Cretaceous Fossils: Echinoids
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Echinoid Coenholectypus planatus Glen Rose Formation
JamieLynn posted a gallery image in Member Collections
From the album: Texas Cretaceous Fossils: Echinoids
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Echinoid Tetragramma texanum Walnut Formation
JamieLynn posted a gallery image in Member Collections
From the album: Texas Cretaceous Fossils: Echinoids
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Echinoid Polydiadema travisensis Glen Rose Formation
JamieLynn posted a gallery image in Member Collections
From the album: Texas Cretaceous Fossils: Echinoids
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Echinoid Pygopyrina hancockensis Glen Rose Formation
JamieLynn posted a gallery image in Member Collections
From the album: Texas Cretaceous Fossils: Echinoids
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Echinoid Leptosalenia mexicana Walnut Formation
JamieLynn posted a gallery image in Member Collections
From the album: Texas Cretaceous Fossils: Echinoids
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Echinoid Globator whitneyi Georgetown Formation
JamieLynn posted a gallery image in Member Collections
From the album: Texas Cretaceous Fossils: Echinoids
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Echinoid Leptosalenia texana Glen Rose Formation
JamieLynn posted a gallery image in Member Collections
From the album: Texas Cretaceous Fossils: Echinoids
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Echinoid Tetragramma streeruwitzi Fort Worth Formation
JamieLynn posted a gallery image in Member Collections
From the album: Texas Cretaceous Fossils: Echinoids
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Echinoid Hyposalenia phillipsae Glen Rose Formation
JamieLynn posted a gallery image in Member Collections
From the album: Texas Cretaceous Fossils: Echinoids
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Echinoid Heterosalenia (rykyrae) Glen Rose Formation
JamieLynn posted a gallery image in Member Collections
From the album: Texas Cretaceous Fossils: Echinoids
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Echinoid Plagiochasma texanum Glen Rose Formation
JamieLynn posted a gallery image in Member Collections
From the album: Texas Cretaceous Fossils: Echinoids
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Echinoid Goniophorus scotti Del Rio Formation
JamieLynn posted a gallery image in Member Collections
From the album: Texas Cretaceous Fossils: Echinoids
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Echinoid Pliotoxaster comanchei Glen Rose Formation
JamieLynn posted a gallery image in Member Collections
From the album: Texas Cretaceous Fossils: Echinoids
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Echinoid Paracidaris texanus Glen Rose Formation
JamieLynn posted a gallery image in Member Collections
From the album: Texas Cretaceous Fossils: Echinoids
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Hi all! I found this tiny fossil today. It is a bit under half a cm long at its longest point. I can only imagine this is an echinoid but some confirmation would be great! Found in some very fossiliferous rock on the UW Madison campus in Dane County Wisconsin, known for being late Cambrian - early Ordovician. No clue where this rock was quarried. Thanks so much!
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I havn't been fossil hunting a very long time....I've only been really serious about if for the last 6 years. And in Central Texas, there ARE a lot of fossils, but it is hard to find a new spot that has not already come under the hunting radar of the many fossil hunters in this state! And some of them have been at it for a LONG time so they've usually found all the really good spots! Which is one of the reasons I love the Paleo Society of Austin, because I learned of some of these good spots from them....they are typically still productive, if not over hunted, so I love finding stuff there. BUT.... I've been hoping to FIND A NEW SPOT. Somewhere no one has found, at least not that I know of in my limited engagement with fossil hunters in this area. New hunting grounds are far and few between unless you are near an area that is being built upon, and there are some of those, definitely. but not near me. However, I'd been finding interesting "potholes" of Del Rio Formation in a local river and the other day, I decided to go a little further upstream than I normally do and LO AND BEHOLD.....the motherload! A whole wall of the grey blue mud I'd been looking for! Now, whether it was productive or not was the next question. There were millions of Ram's Horn Oysters (Ilymatogyra arietina). Maybe a billion. It's hard to count that high. A lot, suffice it to say. So, was there anything other than oysters?? After a bit of trying to see past the oysters, I found a good sign: a little Plicatula bivalve. They are lovely little cat paw looking oysters. A little more searching and I found one of the things I was hoping to find - a heteromorph ammonite called Mariella worthensis. So that gave me a big clue that I had indeed found the Del Rio Formation that I had found chunks of further downstream. What's interesting is it is very similar in fauna to the Waco Research Pit stuff, but with more oysters and less of all the other stuff typically found there, so it is not quite as productive as the Waco site, but it's yielding some nice stuff. I havn't found any Cretolamna shark teeth or Goniophorus echinoids yet (but I have found plates and spines of Gonio, so they are there somewhere....). So I hauled home a bucket of dirt to look for the little stuff and I found some really lovely tiny things!! The next week I went again, trying to get a little hunting in before the REAL summer heat set in (we've had 45 days of over 100 degree temps. It's been brutal, even to use "used to hot summer" Texans). And Happy Day - I found a nice "large" ammonite Otoscaphites subevolutus and a very nice Mariella (the "biggest" I've collected so far), and something interesting, what I would not have known to look for except a friend clued me in that I might find tracks in this formation....and I did! An arthropod I'm assuming. And of course, I took home another bucket of matrix! 1/2 inch Otoscaphites subevolutus Mariella worthensis 3/4 inch Tracks Here are some of the nice micro matrix finds. Lots of tiny crab claws! And the floating Crinoid Roveocrinus.... Some neat little gastropods: but my favorite thing to find is the starfish stuff. In prior spots I have found more brittlestar stuff, but here, not so much. These I think are regular asteroidea fragments. Nothing so great as a whole one...YET! I did find one little shark tooth - possibly Leptostyrax? And one final nice find that is sadly only a section - an ammonite Engonoceras serpentinum - which in all honesty, I didn't even realize what it was till I go home and cleaned it up. I thought it was just a chunk of bivalve till I saw the sutures! Unfortunately, I am not going to post any pics of the area because I want to keep it to myself for a little while at least. I know there are people always searching for signs of a new spot...heck, I was one of them till I figured out how to read a geological map. Someday I'll post some pics of the river...it's quite pretty. Hopefully my honey hole will continue to surprise me!
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From the album: My Echinoid Collection
Periarchus sp. Castle Hayne Formation Late Eocene (41-33 Ma) Holden Beach, Brunswick County, North Carolina, USA Self collected in September 2023 A highly unexpected but exciting find, I came across this chunk of Castle Hayne material while searching the beach for Cretaceous Hardouinia mortonis specimens. The tide and surf was particularly strong due to an offshore tropical cyclone, which made it difficult to find the Cretaceous echinoids, but was bringing in large stones and other things. As best as I can recall, this is the first Castle Hayne formation material I've seen on Holden Beach. The chunk is fairly hefty, and is at least 30.5 cm (12 inches) long. There are a number of Periarchus fragments in the material, and there is one other visible specimen that is only missing about ten percent of the test. I am unsure of the species due to the periproct being obscured. I have little doubt that there are probably more specimens in the center of the material. The chunk also has numerous bryzoan fossils.-
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I posted this in my gallery, since it is my first echinoid, and now the comments have me curious. Does anyone know the genus and whether these are uncommon in the area? I've found one paper about echinoids in the Goose Creek Limestone (Miocene-Pliocene fossils), which is one of the possible formations where this was found (ex-situ). Chandler Bridge (Oligocene) is also present, and possibly a Pleistocene lag deposit that contains reworked Miocene fossils. Being the first one I've found (compared to thousands of shark teeth), I would think they are uncommon; just trying to find out to what extent. Thanks so much! Approximately 26 mm across at widest point.
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From the album: My Echinoid Collection
Ova sp. Mykolaiv Sands, Fore-Carpathian Depression Middle Miocene (16-11 Ma) Gleboviti Locality, Roztocze Hills, Ivano-Frankivsk Oblast, Ukraine Acquired from online, August 2023 I had previously identified these as Schizaster sp., but I realized a short while later that the larger specimen only has two large gonopores, and while the one in matrix has an incomplete apical disc, it looks as if it may have those same two large gonopores. Therefore I'll consider them Ova sp. for now, the larger one seems to have the complete lateroanal fasciole from what little I can see. These come from the same beds that have plentiful spine-coated Echinocardium leopolitanum. One specimen has some spine preservation on the oral surface, while the other one in matrix has some spines along the anterior edge, as well as seemingly on much of the oral surface as well, based on a small crevice located in the sandstone that exposes some of them.-
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From the album: My Echinoid Collection
Echinolampas sp. Ternopil Beds, East European Platform(?) Middle Miocene (16-11 Ma) Unknown Oblast, Ukraine Acquired from online, August 23 My source on Ukrainian echinoids had no info on this specimen other than it seemingly came from the Ternopil Beds, and I have not found any reliable source of information online as to what species this could be. The only thing I could find was a mention of a different undescribed specimen of Echinolampas; however, it was very rounded (not unlike the Oligocene Echinolampas aldrichi from North Carolina), and not laterally compressed and elongated like this one. I wonder if this is a different undescribed species from that one. It measures around 6.6 cm (2.6 inches) long, and around 4.4 cm (1.725 inches) wide. The oral surface is depressed slightly inwards towards the peristome. It seems that the oral surface was prepared with vinegar due to a faint smell, although fortunately it doesn't seem to have suffered much acidic damage.-
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From the album: My Echinoid Collection
Clypeaster scillae Weissenegg Formation Middle Miocene (16-11 Ma) Retznei Quarry, Retznei, Styria, Austria Acquired from a collector during a local trade show, September 2023 While this specimen is ever so slightly crushed, it is also unusually laterally compressed, and the aboral surface is heavily deformed, while the oral surface is mostly normal. Thus, to me it appears to be a pretty pathological specimen.-
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From the album: My Echinoid Collection
Weisbordella cubae Ocala Limestone Priabonian Age, Late Eocene (37-33 Ma) Ocala, Marion County, Florida, USA Acquired from online, August 2023-
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