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Post by wheezy on Dec 22, 2008 2:02:47 GMT
does anyone know when the ouranosaurus was switched from the iguanodontid family to the Hadrosauroidea? Ran across an article about the change last night and was the first i ever heard of it.
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Post by sbell on Dec 22, 2008 5:08:00 GMT
It's a matter of taxonomic semantics--iguanodontidae is within the hadrosauroidea. But it is apparently paraphyletic (as many of the taxonomic groupings are!) so a lot of work is being done on that right now. Best as I could find, there are references from about 2004 that suggested 'iguanodontidae' may have issues. Wikipedia has a short discussion about it en.wikipedia.org/wiki/Iguanodontia |
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Post by tetonbabydoll on Dec 22, 2008 18:10:40 GMT
My 2006 copyrighted edition of the Illustrated Encyclopedia of Dinosaurs still had it listed as an Iguanodont. However, I just finished a repaint of the Battat Ouranosaurus, and the head details are very much those of a hadrosaur. Especially the flattened "bill".
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Post by wheezy on Dec 22, 2008 18:49:46 GMT
A lot of books still publish it under the iguanodont family. On wikipedia i was looking it up for pics and near the botton of the article has it was switched to the hadrosauroidea clade. My newest book published from 2006 the complete book of dinosaurs has it pictured with the other iguanodonts but looked at the classification and it was placed as hadrosauroidea also. it came as news to me since it was always classified as an iguanodont in the past.
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Post by tetonbabydoll on Dec 22, 2008 19:02:25 GMT
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Post by wheezy on Dec 22, 2008 19:19:07 GMT
We must have the same book under different titles mine has the same dinosaurs and in the same order. Is yours the hard or soft cover.
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Post by bokisaurus on Dec 22, 2008 20:47:31 GMT
Stunning piece of art! One of, if not, your best so far ;D It makes me want to 'risk" my ourano!
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That certainly clears it up.The book also has a section on the iguanodontid-hadrosaurid connection. It says the hadrosaurs evolved form the iguanodontids about halfway through the cretacious, and many ornithopods had features from both groups, suggesting a tranitional stage. As examples, they list Telmatosaurus, Gilmoreosaurus, Equijubis, and Protohadros.
