fishman1520 Posted January 23, 2013 Share Posted January 23, 2013 there is a section of the wall of a small canyon that i have found a entire network of these.looks to be some type of tube worms.this was the only whole specimen that i could actually remove.it is in kyle texas.just south of austin. Link to comment Share on other sites More sharing options...
fishman1520 Posted January 23, 2013 Author Share Posted January 23, 2013 it looks like the organisms that made the spiral cavity are also preserved. Link to comment Share on other sites More sharing options...
mikeymig Posted January 23, 2013 Share Posted January 23, 2013 It looks like an ammonite impression with some of the fossil "shell" present. Mikey Many times I've wondered how much there is to know. led zeppelin Link to comment Share on other sites More sharing options...
trilobiteruss Posted January 23, 2013 Share Posted January 23, 2013 I agree they look like possibly ammonites, larger pictures would be nice they remain small and thumbnail like when I click on t hem.. Link to comment Share on other sites More sharing options...
Crinoid Queen Posted January 24, 2013 Share Posted January 24, 2013 (edited) I think ammonites too? Have any information on geologic age? Hard to tell with the pic though sorry. -CQ Edited January 24, 2013 by Crinoid Queen Link to comment Share on other sites More sharing options...
FossilDAWG Posted January 24, 2013 Share Posted January 24, 2013 I see a vaguely coiled "something", but no evidence of chambers, suture lines, or ribbing/ornament. What do people see that says "ammonite"? I agree larger pictures would help. Don Link to comment Share on other sites More sharing options...
fishman1520 Posted January 24, 2013 Author Share Posted January 24, 2013 i will be back in the canyon today and will post more pictures of the wall.to me it looks like the underground portion of a tube worm.where the ornamental/feather part would actually exit the other side.this is along a deep creek.about 2-300m down the creek,before the canyon,there is a formation,where i have found ammonites,helical ammonites,gastropods,bivalves and echinoids.so im assuming.lower cretaceous. Link to comment Share on other sites More sharing options...
erose Posted January 24, 2013 Share Posted January 24, 2013 (edited) Rudists. Weird Cretaceous bivalves. Maybe a type of Caprinid. Looks like Edwards Limestone which is often filled with these combinations of casts and voids. But rudists occur in many other formations around Austin. The piece centered in the form is a cast of the interior space. This Sunday is ID day at the Texas Memorial Museum http://www.utexas.ed...iddays/ Bring it down, and if you are lucky our local rudist expert will be there. If not, then there will still be a few of us amateurs helping folks figure out what they have. You should get a copy of the Austin Sheet of the state Geological Bedrock Atlas: http://www.beg.utexa...ossSecAtlas.php Edited January 24, 2013 by erose Link to comment Share on other sites More sharing options...
fishman1520 Posted January 27, 2013 Author Share Posted January 27, 2013 so your saying that the peice inside the cavity is just a cast,not the actual organism? Link to comment Share on other sites More sharing options...
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