austinswamp Posted May 13, 2018 Share Posted May 13, 2018 Hello, I found this today in Austin Texas and was looking for help on a more definite ID. Ive never found a fully intact one, really good day. I was leaning towards paracymatoceras hilli. Thanks 1 Link to comment Share on other sites More sharing options...
Tidgy's Dad Posted May 13, 2018 Share Posted May 13, 2018 I'm not sure, the ribs are not preserved that are distinctive for Paracymatoceras. Could be Cymatoceras. I don't know but that is a really gorgeous specimen. 2 Life's Good! Tortoise Friend. Link to comment Share on other sites More sharing options...
Uncle Siphuncle Posted May 13, 2018 Share Posted May 13, 2018 Austin has many rock formations as it straddles the Balcones Fault Zone, and several hold nautiloids. Do you know what formation it came from? Grüße, Daniel A. Wöhr aus Südtexas "To the motivated go the spoils." Link to comment Share on other sites More sharing options...
FossilDAWG Posted May 13, 2018 Share Posted May 13, 2018 Whorl profile and suture line seem more indicative of Eutrophoceras than Cymatoceras or Paracymatoceras, I think. Don 3 Link to comment Share on other sites More sharing options...
austinswamp Posted May 13, 2018 Author Share Posted May 13, 2018 8 minutes ago, Uncle Siphuncle said: Austin has many rock formations as it straddles the Balcones Fault Zone, and several hold nautiloids. Do you know what formation it came from? I read its the Phlugerville formation Link to comment Share on other sites More sharing options...
austinswamp Posted May 14, 2018 Author Share Posted May 14, 2018 48 minutes ago, Uncle Siphuncle said: Austin has many rock formations as it straddles the Balcones Fault Zone, and several hold nautiloids. Do you know what formation it came from? Big house formation Link to comment Share on other sites More sharing options...
Heteromorph Posted May 14, 2018 Share Posted May 14, 2018 The matrix and location indicate the Austin Chalk formation to me. If so, Eutrophoceras campbelli seems to be a good match. It looks to fat to be a Cymatoceras sp. These links might help: Another First For Me From Austin Chalk - But What Is It? FOSSIL COLLECTING REPORT March 2010 Daniel A. Woehr 4 Link to comment Share on other sites More sharing options...
Uncle Siphuncle Posted May 14, 2018 Share Posted May 14, 2018 Campanian would indeed suggest Eutrephoceras. 1 Grüße, Daniel A. Wöhr aus Südtexas "To the motivated go the spoils." Link to comment Share on other sites More sharing options...
Fruitbat Posted May 14, 2018 Share Posted May 14, 2018 I certainly can't claim to be a cephalopod expert...but I DO know a beautiful specimen when I see one...and I DO see one! Texas is just FULL of nice little surprises! -Joe 1 Illigitimati non carborundum Fruitbat's PDF Library Link to comment Share on other sites More sharing options...
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