期刊
JOURNAL OF VERTEBRATE PALEONTOLOGY
卷 32, 期 3, 页码 573-586出版社
TAYLOR & FRANCIS INC
DOI: 10.1080/02724634.2012.649815
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- American Museum of Natural History
- University of California Museum of Paleontology
- Paleontological Society
- University of Iowa
A new phytosaur taxon from Petrified Forest National Park, Arizona, is here described based on cranial material from a single individual. This specimen previously was included in an extensive phylogenetic analysis, and it was found to possess a combination of character states that differs from all known phytosaur taxa in addition to two autapomorphies within the braincase and an autapomorphy of the mandible. The new taxon adds to the taxonomic diversity recognized from the Sonsela Member of the Chinle Formation. The continued increase in phytosaur diversity emphasizes the need to more accurately characterize and identify taxa within a phylogenetic systematic context in order to produce a more refined signal for biostratigraphic correlations, biochronologic inferences, and faunal dynamics during the Late Triassic.
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