lildragon Posted February 6, 2018 Share Posted February 6, 2018 Hello everyone! Today we found a few more fossils on grandfather's attic we did not recognize. #1: ??? Somesort of fossilized seed maybe? It is rock hard, and turned to stone. (This fossil is smaller than a walnut, but larger than a hazel nut.) ID'd as dermal denticle from a skate by AlDente. #2: Looks and feels like fossilized wood, but it's quite unique. We haven't found a second one like this on the attic. ID'd as Selenite by Ynot. #3: These were found amidst bivalves: #4: Plates with patterns which reminded us of dendrites. Is this somesort of pseudo-fossil? ID'd Stromatolites by Rockwood. Thanks in advance! Link to comment Share on other sites More sharing options...
Rockwood Posted February 6, 2018 Share Posted February 6, 2018 4 minutes ago, lildragon said: #4: Plates with patterns which reminded us of dendrites. Is this somesort of pseudo-fossil? I think they may be stromatolites. Link to comment Share on other sites More sharing options...
ynot Posted February 6, 2018 Share Posted February 6, 2018 13 minutes ago, lildragon said: #2: Looks and feels like fossilized wood, but it's quite unique. Looks like selenite. A form of calcite. Darwin said: " Man sprang from monkeys." Will Rogers said: " Some of them didn't spring far enough." My Fossil collection - My Mineral collection My favorite thread on TFF. Link to comment Share on other sites More sharing options...
Rockwood Posted February 6, 2018 Share Posted February 6, 2018 24 minutes ago, ynot said: Looks like selenite. A form of calcite. A form that could have been a crinoid stem section originally ? Link to comment Share on other sites More sharing options...
ynot Posted February 6, 2018 Share Posted February 6, 2018 2 minutes ago, Rockwood said: A form that could have been a crinoid stem section originally ? Does not look like that to Me. Darwin said: " Man sprang from monkeys." Will Rogers said: " Some of them didn't spring far enough." My Fossil collection - My Mineral collection My favorite thread on TFF. Link to comment Share on other sites More sharing options...
FossilDAWG Posted February 6, 2018 Share Posted February 6, 2018 Something for scale would be helpful. I have no idea of the size of the first object for example. The fossil on the left in photo 3 may be an internal mold of a brachiopod, possibly a pentamerid such as Stricklandia. More views could be helpful. #2 is likely a mineral, as has been suggested. Don Link to comment Share on other sites More sharing options...
Darktooth Posted February 6, 2018 Share Posted February 6, 2018 2 hours ago, ynot said: Looks like selenite. A form of calcite. Selenite is a form of gypsum. C'mon ynot, rookie mistake. I like Trilo-butts and I cannot lie. Link to comment Share on other sites More sharing options...
ynot Posted February 6, 2018 Share Posted February 6, 2018 5 minutes ago, Darktooth said: Selenite is a form of gypsum. C'mon ynot, rookie mistake. My bad. Dang dyslexia. Darwin said: " Man sprang from monkeys." Will Rogers said: " Some of them didn't spring far enough." My Fossil collection - My Mineral collection My favorite thread on TFF. Link to comment Share on other sites More sharing options...
Darktooth Posted February 6, 2018 Share Posted February 6, 2018 2 minutes ago, ynot said: My bad. Dang dyslexia. Well I guess we will let it slide this time! I like Trilo-butts and I cannot lie. Link to comment Share on other sites More sharing options...
lildragon Posted February 7, 2018 Author Share Posted February 7, 2018 @ynot This block of Selenite was actually found inside a box full of fossilized wood, so we were quite puzzled. It looks absolutely nothing like the other gypsum crystals we found, and we found many different forms. @FossilDAWG I ordered plastic size reference plates for photography, just waiting for it to arrive by mail! Should help with future ID'ing. But to give you an idea of the size of the first fossils: It's smaller than a walnut, and a little larger than a hazel nut. Link to comment Share on other sites More sharing options...
Wrangellian Posted February 7, 2018 Share Posted February 7, 2018 9 hours ago, FossilDAWG said: Something for scale would be helpful. I have no idea of the size of the first object for example. The fossil on the left in photo 3 may be an internal mold of a brachiopod, possibly a pentamerid such as Stricklandia. More views could be helpful. #2 is likely a mineral, as has been suggested. Don Do you think the one on the right might be the int. mold of a brach as well, though a different kind? Link to comment Share on other sites More sharing options...
Wrangellian Posted February 7, 2018 Share Posted February 7, 2018 #4 doesn't say 'stromatolite' to me but I do see sedimentary plates with something along the lines of dendrites. Link to comment Share on other sites More sharing options...
Al Dente Posted February 7, 2018 Share Posted February 7, 2018 Number one is a dermal denticle from a skate. Modern Raja clavata have these large denticles on the ventral side of their body. Link to comment Share on other sites More sharing options...
lildragon Posted February 7, 2018 Author Share Posted February 7, 2018 1 hour ago, Al Dente said: Number one is a dermal denticle from a skate. Modern Raja clavata have these large denticles on the ventral side of their body. Wow, I would've never guessed that. Most denticles I've seen have a less round shape than this one. Thanks for the ID! Link to comment Share on other sites More sharing options...
abyssunder Posted February 7, 2018 Share Posted February 7, 2018 I agree with Raja clavata dermal denticle. The thorn is broken off. Here is one of my finds, from the Black Sea, Romania. " We are not separate and independent entities, but like links in a chain, and we could not by any means be what we are without those who went before us and showed us the way. " Thomas Mann My Library Link to comment Share on other sites More sharing options...
abyssunder Posted February 7, 2018 Share Posted February 7, 2018 #4 - High resolution images would be more convincing if the features present on the plates are dendrites or possibly rhodophytes. " We are not separate and independent entities, but like links in a chain, and we could not by any means be what we are without those who went before us and showed us the way. " Thomas Mann My Library Link to comment Share on other sites More sharing options...
D.N.FossilmanLithuania Posted February 8, 2018 Share Posted February 8, 2018 Abyssunder is correct- it is Raja dermal denticle! Great find Link to comment Share on other sites More sharing options...
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