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Hello, I found this during my last trip to a NJ Cretaceous stream. I sometimes find Devonian coral fragments but have never found something like this. I believe the round parts to be remnants of crinoid stems but I’m unsure about the star shapes. Any help is appreciated, thanks!
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Hoooooooooooorrrrrrrrrrrraaaaaaayyyyyyyyyyy!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! Here we are at last, into Adam's Silurian. Thanks for looking. First up is the Lower Silurian or Llandovery and I begin with a problem. I posted this one incorrectly in Adam's Ordovician as it had got it's label muddled up with an Ordovician Favosites I had that has vanished in the move here, but is being replaced by kind forum member @Herb Anyway, this, I remember now I've found the correct label, is from the greenish Browgill Formation, part of the Stockdale Group from a cutting near Skelgill (Skelghyll) in Cumbria, Northern England. It seems to be a tabulate coral, but I can't find any listed for this location, only mentions of small, rare, rugose corals. It has the star shaped corallites of a Heliolitidid, but seems to be tightly packed together like a Favositidid. A couple of species of Palaeofavosites seem to be close and are a bit star-shaped,, but anyone know any better? @TqB@piranha hmm who else? The coral bit, an external mold, is a maximum of 3.5 cm across and each corallite up to 2 mm.
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- eostrophodonta
- eostrophodonta mullochensis
- leptostophiidae
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Hello to all. Found this sample few years ago. Place of discovery: Ukraine, Donetsk region, Dobropolsky district. The age of it is the Kasimovian stage of the Carboniferous period (307 Ma). Have a nice day 3.mp4 6.mp4
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Location: Tankerton, Kent, UK Epoch and Age: Eocene; Ypresian Geology: London Clay formation Date visited: 3 March 2024 This is written with an intent to help other people visiting Tankerton, rather than to brag about all the great finds I had (of which there were none). We decided to try out this location as prior in the week there had been substantial rain storms with high winds, so I thought perhaps scouring conditions may occur to reveal the clay. I was wrong. At roughly an hour before low tide there was a great deal of shingle/pebbles on the beach, but also a fair amount of silt. I trekked out as far as I could go while my daughter and husband went to play in the sandy part of the upper foreshore, but met with no luck. We were about 200m west of Long Rock, as the UK Fossils website <https://ukfossils.co.uk/2012/01/24/tankerton/> had said that was the best area. Perhaps the low tide also wasn’t low enough? I also don’t have any experience looking for nodule beds, whereas someone else may have been able to locate them amongst the pebbles. Everything looked more or less the same to me, apart from a couple of ‘rivers’ running from the foreshore into the sea, which I did investigate to no avail. Upon further reading, it seems that scouring conditions are difficult to predict and really require substantial winds at the time of the visit, creating that ‘wavy’ pattern on the sediment of the beach. I looked at some picture of ‘scouring conditions’, and it definitely was not like that when we went. Unfortunately, this meant that the finds were thin and far between. I only found one nodule of the correct type – that light brown ‘milky tea’ colour, and unfortunately it was empty. My daughter really likes ‘sea treasure’, and I did find a few pieces of old pottery, so she was delighted with those bits. One is in her bed to keep it safe and didn’t make it into the photo as I dare not remove it. As far as other finds go, the only thing I’m pleased with is a tiny fragment of pyritised crinoid stem. I thought it was a stick when I went to pick it up, but couldn’t break it with my fingernail, and upon closer inspection the rings around the outside are visible. It doesn’t have a star pattern, though, just round. I've attached my reference image, too. I found a couple of things that might be lobster burrows (B and C); I noticed the presence of an outer ring around a central core, so that’s where I got my identification. I would be grateful if someone could confirm/correct this guess. D and E have interesting shapes. D appears to have some small pores at the top of what looks like branch stems, so perhaps some sort of coral structure? E is a very smooth long oval shape, and has a tiny section of pattern. Not sure, but thought the shape might be suggestive (of what, I couldn’t say). F has a nice colour and perhaps an imprint on the inside? That could certainly be a geologic formation, but didn’t want to rule it out. G (on main photo) I think is half of the outside of a worm burrow. It could be man-made, but the material does seem to be rock rather than concrete. H (on main photo) appears to have a number of tiny worm burrows digging into the material. I found a few pieces like this, so just took one as an example. My other that was that it was more recent sea creatures digging into it as there was a fair amount of seaweed growing on it stuck fast – is there a way to tell? I is another interesting one, and not sure if it’s geologic in nature. The round circles in the middle are of a different quality from the rest of the matrix, and I’m hoping that someone can indicate whether it’s fossil material or just a different mineral inside. Regardless, it looks cool and is the only one of its type I found. A few neat stones, some larger worn shell pieces, and a few shells my daughter picked up round out the collection. My improvement points would be to definitely make sure the conditions are correct in order to not be met with disappointment and frustration. Perhaps if someone is really experienced in spotting the cream-coloured nodules they would do fine in just a low tide, but it proved beyond my capacities. We still had a great time as the wind was very mild, particularly in the first hour, and it wasn’t raining (about all you could ask for in early March). It’s a lot of fun to check out new locations, and at the very least you learn something for the next trip! Cheers!
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Crinoid Delocrinus vulgatus Pennsylvanian Texas
JamieLynn posted a gallery image in Member Collections
From the album: Texas Pennsylvanian: Echinoderms (Crinoids and Echinoids)
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Crinoid Paragassizocrinus tarri Pennsylvanian Texas
JamieLynn posted a gallery image in Member Collections
From the album: Texas Pennsylvanian: Echinoderms (Crinoids and Echinoids)
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From the album: Texas Pennsylvanian: Echinoderms (Crinoids and Echinoids)
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From the album: Texas Pennsylvanian: Echinoderms (Crinoids and Echinoids)
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From the album: Texas Pennsylvanian: Echinoderms (Crinoids and Echinoids)
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From the album: Texas Pennsylvanian: Echinoderms (Crinoids and Echinoids)
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Crinoid Calyx Allegecrinus bassleri Pennsylvanian Texas
JamieLynn posted a gallery image in Member Collections
From the album: Texas Pennsylvanian: Echinoderms (Crinoids and Echinoids)
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From the album: Texas Pennsylvanian: Echinoderms (Crinoids and Echinoids)
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From the album: Texas Pennsylvanian: Echinoderms (Crinoids and Echinoids)
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Traumatocrinus from Guanling Biota of China: Aboral and Oral Calyx Surfaces
Biotalker posted a topic in General Fossil Discussion
There are a lot of crinoid fossils coming out of China these days, particularly this good sized and photogenic species. I believe it is called Traumatocrinus, perhaps named after a famed paleontologist who was killed during WWII. By far, most available fossils are a side view of the calyx and arms. I was interested in acquiring specimens that clearly show the echinoderm geometry on the aboral surface of the calyx. I was also interested in some view of the oral surface, which is usually hidden behind a blizzard of arms and branching pinnules. The crinoid has a pentaradial symmetry with two arms on each for a total of 10 arms. The green outline shows one of the five structures that make a five pointed "star". The oral surface is less visible. One can see plate-like structures in the center but I can't detect a mouth, hydropore or anus.- 2 replies
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Crinoid Calyx Paramphicrinus Texas Pennsylvanian
JamieLynn posted a gallery image in Member Collections
From the album: Texas Pennsylvanian: Echinoderms (Crinoids and Echinoids)
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From the album: Texas Pennsylvanian: Echinoderms (Crinoids and Echinoids)
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Crinoid Ethelocrinus tuberculatus Texas Pennsylvanian
JamieLynn posted a gallery image in Member Collections
From the album: Texas Pennsylvanian: Echinoderms (Crinoids and Echinoids)
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Crinoid Primibrachial axillary Texas Pennsylvanian
JamieLynn posted a gallery image in Member Collections
From the album: Texas Pennsylvanian: Echinoderms (Crinoids and Echinoids)
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Crinoid Primibrachial axillary Texas Pennsylvanian
JamieLynn posted a gallery image in Member Collections
From the album: Texas Pennsylvanian: Echinoderms (Crinoids and Echinoids)
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Crinoid Primibrachial axillary Texas Pennsylvanian
JamieLynn posted a gallery image in Member Collections
From the album: Texas Pennsylvanian: Echinoderms (Crinoids and Echinoids)
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Animal, vegetable, or mineral? Help with finds from Charmouth, Dorset, UK
citronkitten posted a topic in Fossil ID
Greetings, I have 4 pieces from Charmouth on the Jurassic Coast in Dorset that I am having trouble identifying. They were found during a fossil hunt led by the Charmouth Heritage Coast Center when they brought us to a stretch of beach between the Centre and Black Ven to the west. We would have been looking through the Black Ven Mudstone 'Shales with Beef' portion on the foreshore, which is from the Jurassic (no surprise, given the name of the area) period. Here are my best guesses: A = rolled bone, B = crinoid stem or coral, C = multiple bivalves and ammonite impression in matrix, D (the unlabelled one) = wood As always, corrections/confirmations/clarifications are much appreciated, as is your time for reading my post! -
From the album: Texas Pennsylvanian: Echinoderms (Crinoids and Echinoids)
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From the album: Texas Pennsylvanian: Echinoderms (Crinoids and Echinoids)
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From the album: Texas Pennsylvanian: Echinoderms (Crinoids and Echinoids)