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Showing results for tags 'blair'.
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Baffled.... Carboniferous Pottsville Sandstone, Blair County, Pennsylvania (USA)
SteveE posted a topic in Fossil ID
This doesn't match the area's semi-abundant Lepidodendron or Sigillaria or their roots (Stigmaria)... and it doesn't look like Cordaites or Calamites and I'm at a loss to ID the rectangular pattern here. Help, anyone? (Note two fingers of my leather glove on left for scale)- 12 replies
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- carboniferous
- pottsville
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First Trilobite, need help with order or genus.... Alas, it's from the Garbage Formation
SteveE posted a topic in Fossil ID
Not counting lits bits and piece, finally found my first trilobite. It goes to show that you can find fossils in unexpected places, too. I was waiting to meet a friend and was just kicking over rocks in a misc (man made) rubble heap on the edge of town. Then this fragile soft siltstone broke apart badly, right across this beauty. I have no idea what formation it's from, and since its a junk pile along an abandoned RR I can't say for sure that's even from the county (Hollidaysburg, Blair County, PA, USA). About all I can say is it failed the fizz test, and there is a lot of parallel coloration running perpindicular to the bedding plane. For the fossil, there is a mold and cast. and part of me sees parts of more than one animal. I'm all new to trilos though. I think the closeup is a trilo eye, and was struck by the repeating details along the.... eye ridge maybe? What ID features leap out at you? Any advice on removing more material? That flake with the eye in the closeup just looked like waste, and I pried it off with my fingernail only to be surprised! (You might say my eye popped) -
small orthoconic nautiloids versus tentaculites? What should I look for?
SteveE posted a topic in Fossil ID
Blair County, Pennsylvania (USA) Silurian... According to the map the likely guess is Clinton Formation, but my gut on site said "Wills Creek" Anyway, what do I have here? Small straight nautiloids or Tentaculites? How do you tell them apart?- 11 replies
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- tentaculites
- silurian
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