Jessiejmt Posted January 12, 2019 Share Posted January 12, 2019 Hey there, So I’m a total newbie, and don’t have any education in fossils. But I have grown up rock hounding all over the Pacific Northwest. Happened to be hunting for sea glass, and ran across this gem on Cat Island, Bahamas. I’ve brought it to several rock shops to try and get some information or ideas of what it might be but to no avail. Any ideas? Hope it’s an interesting one for anyone to look at on here Link to comment Share on other sites More sharing options...
Jessiejmt Posted January 12, 2019 Author Share Posted January 12, 2019 To add a couple more views& info it was found in the rocks above the shore in a small cove. Not sure what other info might be useful? Link to comment Share on other sites More sharing options...
fossilus Posted January 12, 2019 Share Posted January 12, 2019 Probably not dinosaur in the Bahamas, the rocks there are far too young. Looks like a weathered mollusk. 1 Link to comment Share on other sites More sharing options...
ynot Posted January 12, 2019 Share Posted January 12, 2019 Welcome to TFF! Can You see if it will scratch a knife blade or a piece of glass. Thanks. 1 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...
Tidgy's Dad Posted January 12, 2019 Share Posted January 12, 2019 Layered calcite? 2 Life's Good! Tortoise Friend. Link to comment Share on other sites More sharing options...
ynot Posted January 12, 2019 Share Posted January 12, 2019 2 minutes ago, Tidgy's Dad said: Layered calcite? Or cryptocrystalline quartz, hence the hardness test request. 2 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...
Jessiejmt Posted January 12, 2019 Author Share Posted January 12, 2019 Wow thanks everyone for the replies! So it doesn’t scratch glass, tried multiple times. Link to comment Share on other sites More sharing options...
abyssunder Posted January 12, 2019 Share Posted January 12, 2019 My guess would be a bioeroded oyster fragment. Of what I'm sure, it has really nice Entobia markings. 3 " 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...
ynot Posted January 12, 2019 Share Posted January 12, 2019 1 minute ago, Jessiejmt said: So it doesn’t scratch glass, tried multiple times. Then Tidgy's dad is probably correct with calcite, Does it fizz when vinegar is dripped on it? 2 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...
caldigger Posted January 12, 2019 Share Posted January 12, 2019 Looks like a piece of oyster shell. What do you see that would make you make the leap to dinosaur? Edit: looks as if abyssunder beat me to the line. 2 Link to comment Share on other sites More sharing options...
ynot Posted January 12, 2019 Share Posted January 12, 2019 3 minutes ago, abyssunder said: My guess would be a bioeroded oyster fragment. Of what I'm sure, it has really nice Entobia markings. 3 minutes ago, caldigger said: Looks like a piece of oyster shell. To My eyes the layering seems too thick for shell. 1 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...
abyssunder Posted January 12, 2019 Share Posted January 12, 2019 3 minutes ago, ynot said: To My eyes the layering seems too thick for shell. Not necessarily. Some oysters may have very thick shells. " 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...
ynot Posted January 12, 2019 Share Posted January 12, 2019 29 minutes ago, abyssunder said: Some oysters may have very thick shells. I am not referring to the thickness of the shell, but to the thickness of the layers of this piece. ( Lamina) 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...
Jessiejmt Posted January 12, 2019 Author Share Posted January 12, 2019 So i did the vinegar test and it fizzed. It wasn’t a major fizzed but definitely a reaction. I guess I was thinking it could’ve been a fossilized dinasour bone (aquatic of some sort) maybe rib bone, due to the thick layers and pouris edges. Also it seems to circle at the end, as if it was hollow. Link to comment Share on other sites More sharing options...
abyssunder Posted January 12, 2019 Share Posted January 12, 2019 22 minutes ago, ynot said: I am not referring to the thickness of the shell, but to the thickness of the layers of this piece. ( Lamine{?}) It might be in range, if I include Crassostrea gryphoides or similar in the possibilities. 3 " 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...
Jessiejmt Posted January 12, 2019 Author Share Posted January 12, 2019 (edited) Okay what I was thinking was bone porousness was “entobia markings” ~ thanks Abyssunder Edited January 12, 2019 by Jessiejmt Specify markings Link to comment Share on other sites More sharing options...
Rockwood Posted January 12, 2019 Share Posted January 12, 2019 I can't hold it any longer. I have to ask. Any chance it's a flake of mammoth tooth ? Link to comment Share on other sites More sharing options...
caldigger Posted January 12, 2019 Share Posted January 12, 2019 55 minutes ago, abyssunder said: Not necessarily. Some oysters may have very thick shells. 2 Link to comment Share on other sites More sharing options...
abyssunder Posted January 12, 2019 Share Posted January 12, 2019 13 minutes ago, Rockwood said: Any chance it's a flake of mammoth tooth ? Sponges bore in lithic not in osteic substrate. 1 " 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 January 12, 2019 Share Posted January 12, 2019 27 minutes ago, Jessiejmt said: Okay what I was thinking was bone porousness was “entobia markings” ~ thanks Abyssunder You are welcome. " 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...
frankh8147 Posted January 13, 2019 Share Posted January 13, 2019 If it helps anyone, I think this object I found in the Bahamas a decade or so ago is very similar to yours. For what it's worth, I always thought it was some type of calcite but could be wrong... 1 Link to comment Share on other sites More sharing options...
Jessiejmt Posted January 14, 2019 Author Share Posted January 14, 2019 (edited) @frankh8147 interesting, some of the pics do look similar. Edited January 14, 2019 by Jessiejmt Link to comment Share on other sites More sharing options...
Notidanodon Posted January 14, 2019 Share Posted January 14, 2019 I collect shells and I am pretty sure this is the weathered lip of some large Gastropoda maybe lobatus gigas Link to comment Share on other sites More sharing options...
Jessiejmt Posted January 15, 2019 Author Share Posted January 15, 2019 @will stevenson really? It seems so thick compared to conch shells I’ve collected from that area Link to comment Share on other sites More sharing options...
PSchleis Posted January 15, 2019 Share Posted January 15, 2019 On 1/12/2019 at 3:33 PM, ynot said: Welcome to TFF! Can You see if it will scratch a knife blade or a piece of glass. Thanks. Knife blade? Neat trick. I'll have to remember that. Link to comment Share on other sites More sharing options...
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