A neglected lineage of North American turtles fills a major gap in the fossil record

@inproceedings{Joyce2010ANL,
  title={A neglected lineage of North American turtles fills a major gap in the fossil record},
  author={Walter G. Joyce and T R Lyson},
  year={2010}
}

• Walter G. Joyce, T R Lyson
• Published 2010
• DOI:10.1111/j.1475-4983.2009.00929.x

The fossil record of the two primary subclades of softshell turtles (Trionychidae) is exceedingly asymmetric, as a result of a ghost range of total clade Cyclanorbinae that is estimated at 80 Ma. Herein, we present the first phylogenetic analysis of Trionychidae that includes a representative of the poorly studied taxon Plastomenidae, which is known from the Campanian to Eocene of North America. The analysis reveals that plastomenids are stem cyclanorbines, thus signifi- cantly reducing the… CONTINUE READING

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