Richard Posted June 28, 2009 Share Posted June 28, 2009 Here are the biggest fossil I have ever found! These were also on the shore of Lake Belton in Texas. There were found within 10 feet of each other in Limestone rock. The little one came out easy, but the large one took me about an hour and a half. Could these be the impressions of a Nautilus?? Any info will be greatly appreciated. Richard Link to comment Share on other sites More sharing options...
Northern Sharks Posted June 28, 2009 Share Posted June 28, 2009 I would say ammonite rather than nautilus. One of the other Texans can probably give you the ID. Nice pieces There's no limit to what you can accomplish when you're supposed to be doing something else Link to comment Share on other sites More sharing options...
mommabetts Posted June 28, 2009 Share Posted June 28, 2009 Those are ammonite impressions. Link to comment Share on other sites More sharing options...
tracer Posted June 28, 2009 Share Posted June 28, 2009 yes, richard, those are from ammonites, and i'll leave it to dan or someone to say exactly which so as not to mislead you. but you may be able to note from looking at it that there's sort of a "keel ridge" along the outside of the curve, and then the "flutes" or "ridges" on the sides go up near that ridge, and make it look similar to your other fossil that you thought was bones. it may therefore well be that, as was indicated by at least one reply, the other fossil was also from a piece of an ammonite. if they still have copies of the books, you can order several good references from the HGMS.org website that will help you quite a bit in your texas fossil collecting and identification. they even have some localities listed in them. Link to comment Share on other sites More sharing options...
JohnJ Posted June 28, 2009 Share Posted June 28, 2009 They look to be impressions of Oxytropidoceras sp. ammonites, especially given where you found them (probably Walnut or Comanche Peak formation). Welcome to the Forum. The human mind has the ability to believe anything is true. - JJ Link to comment Share on other sites More sharing options...
tracer Posted June 28, 2009 Share Posted June 28, 2009 yeah, i trudged to my book storage compartment and got my book out and looked up that dipstickpidonoceras or whatever john said it was and, as usual, he was right. looked like he got the formations for the area right too. he does that a lot. Link to comment Share on other sites More sharing options...
worthy 55 Posted June 29, 2009 Share Posted June 29, 2009 Nice find . It's my bone!!! Link to comment Share on other sites More sharing options...
Nicholas Posted June 29, 2009 Share Posted June 29, 2009 Very good impressions. Link to comment Share on other sites More sharing options...
CreekCrawler Posted June 29, 2009 Share Posted June 29, 2009 Those are awesome impressions Now go try and find the fossil that left those great marks I'm sure they around somewhere. Link to comment Share on other sites More sharing options...
MikeD Posted June 29, 2009 Share Posted June 29, 2009 That is a very nice impression, especially of the keel area. A keeper. Link to comment Share on other sites More sharing options...
Terry Dactyll Posted June 29, 2009 Share Posted June 29, 2009 Nice finds...... Maybe push some modelling clay into the best ammonite impression, that way you will have a cast of what made them, and your negatives look pretty sharp..... i bet a cast of the ammonite would look good..... Cheers Steve... And Welcome if your a New Member... Link to comment Share on other sites More sharing options...
silverphoenix Posted June 29, 2009 Share Posted June 29, 2009 Very hard to find complete impressions--very nice! Link to comment Share on other sites More sharing options...
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