Development of the posterior endocranium of the Devonian dipnoan Griphognathus whitei
A broad phylogenetic analysis of extant and fossil fishes led previous authors to conclude that the occipital region of primitive actinopterygians was formed by the fusion of three segments. They included the dipnoan Griphognathus whitei from the Devonian of Western Australia in their study and assumed that all sarcopterygians also had the occipital ring made of three segments. In reaching this conclusion, they interpreted the foramina in the walls of the occipital rings in that species as...[Show more]
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|Source:||Journal of Vertebrate Paleontology|
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|02_Campbell_Development_of_the_posterior_2012.pdf||4.64 MB||Adobe PDF||Request a copy|
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