Peace river rat Posted November 7, 2017 Share Posted November 7, 2017 I find quite a few verts that are flat on both sides. How many critters, besides cetaceans are flat on both sides? Thanks. Link to comment Share on other sites More sharing options...
ynot Posted November 7, 2017 Share Posted November 7, 2017 I think most mammals have flat vertebrae. Darwin said: " Man sprang from monkeys." Will Rogers said: " Some of them didn't spring far enough." My Fossil collection - My Mineral collection My favorite thread on TFF. Link to comment Share on other sites More sharing options...
Peace river rat Posted November 7, 2017 Author Share Posted November 7, 2017 3 hours ago, ynot said: I think most mammals have flat vertebrae. I seem to find a broad range of combinations between flat/concave/convex. Link to comment Share on other sites More sharing options...
ynot Posted November 7, 2017 Share Posted November 7, 2017 @Harry Pristis Darwin said: " Man sprang from monkeys." Will Rogers said: " Some of them didn't spring far enough." My Fossil collection - My Mineral collection My favorite thread on TFF. Link to comment Share on other sites More sharing options...
LordTrilobite Posted November 7, 2017 Share Posted November 7, 2017 Mammals in general can't really be characterised by having flat/acoelous vertebrae. Here's a picture of the different types of vertebrae centra there are. Many different animals have different configurations. Finding a vertebra with a certain type may not always give you a good indication as to what group of animals it belongs to. Some animals also have different types of vertebrae in different parts of their bodies. For example, here are a few fossils from my collections from different groups. Some types of vertebrae appear in many groups, while some appear in some groups at all. An Opistocoelous cervical vertebra from a woolly rhino from the North Sea. An acoelous vertebra of a dinosaur from Morocco A procoelous caudal vertebra of a mosasaur from Morocco Sadly I don't have any other mammal examples in 3D right now. But hopefully this illustrates how variable it can be, not just in mammals but in all animals. 4 Olof Moleman AKA Lord Trilobite Link to comment Share on other sites More sharing options...
Harry Pristis Posted November 7, 2017 Share Posted November 7, 2017 I don't understand the original proposition. Flat mammal vertebrae? Flat in which dimension? . . . The faces (epiphyses) of the centra, as with cetacean vertebrae? Here's the flattest vertebra I've ever collected . . . Recognize it? http://pristis.wix.com/the-demijohn-page What seest thou else In the dark backward and abysm of time? ---Shakespeare, The Tempest Link to comment Share on other sites More sharing options...
jpc Posted November 7, 2017 Share Posted November 7, 2017 Harry.... I was going to guess frog, but it would be huge. Link to comment Share on other sites More sharing options...
Ludwigia Posted November 7, 2017 Share Posted November 7, 2017 2 minutes ago, jpc said: Harry.... I was going to guess frog, but it would be huge. Unless it was run over by a car...sorry! Couldn't help myself. It's been a long day. Greetings from the Lake of Constance. Roger http://www.steinkern.de/ Link to comment Share on other sites More sharing options...
Peace river rat Posted November 7, 2017 Author Share Posted November 7, 2017 5 hours ago, Harry Pristis said: I don't understand the original proposition. Flat mammal vertebrae? Flat in which dimension? . . . The faces (epiphyses) of the centra, as with cetacean vertebrae? Here's the flattest vertebra I've ever collected . . . Recognize it? Yes, flat on the faces (epiphyses) Link to comment Share on other sites More sharing options...
Harry Pristis Posted November 8, 2017 Share Posted November 8, 2017 Here are some: 5 http://pristis.wix.com/the-demijohn-page What seest thou else In the dark backward and abysm of time? ---Shakespeare, The Tempest Link to comment Share on other sites More sharing options...
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