diginupbones Posted July 16, 2020 Share Posted July 16, 2020 Just curious what part of the critter this comes from. Not sure who the turtle experts are on here so I thought I would tag and obvious one. @turtlesteve Found in North Central Nebraska Link to comment Share on other sites More sharing options...
jpc Posted July 16, 2020 Share Posted July 16, 2020 a large tortoise. I don't know the Miocene Nebraska turtles. Link to comment Share on other sites More sharing options...
turtlesteve Posted July 17, 2020 Share Posted July 17, 2020 It is a peripheral bone from one end of the bridge between carapace and plastron. I believe it is the posterior end, or peVII on the drawing below. As mentioned, looks like a big tortoise. 3 Link to comment Share on other sites More sharing options...
turtlesteve Posted July 17, 2020 Share Posted July 17, 2020 Oh, and pulling rough measurements off a couple shells I have lying around, big means somewhere in the ball park of 24-30” carapace length. Several big tortoises have been identified from Nebraska. I think the aspect ratio of this bone suggests a species with a taller carapace. 1 Link to comment Share on other sites More sharing options...
diginupbones Posted July 17, 2020 Author Share Posted July 17, 2020 I know giant land tortoise thrived in Nebraska for millions of years. It is probably the most common surface find in the area. There are so many that we don’t even pick them up anymore unless I see are a good size chunk like this one. Apparently we had alligators found in the area also but those are on my bucket list. Thanks for the information! Link to comment Share on other sites More sharing options...
diginupbones Posted July 17, 2020 Author Share Posted July 17, 2020 27 minutes ago, turtlesteve said: Oh, and pulling rough measurements off a couple shells I have lying around, big means somewhere in the ball park of 24-30” carapace length. Several big tortoises have been identified from Nebraska. I think the aspect ratio of this bone suggests a species with a taller carapace. here are a couple of more big thick pieces that are interesting. Link to comment Share on other sites More sharing options...
turtlesteve Posted July 17, 2020 Share Posted July 17, 2020 The first one is a nuchal. The others, hard to ID without more pics. 1 Link to comment Share on other sites More sharing options...
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