[dinosaur] Palodromeus, new dissorophoid temnospondyl from Carboniferous of Ohio

Subject: [dinosaur] Palodromeus, new dissorophoid temnospondyl from Carboniferous of Ohio

From: Ben Creisler <bcreisler@gmail.com>

Date: Mon, 7 Dec 2020 19:32:23 -0800

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Ben Creisler

bcreisler@gmail.com

A new paper:

Palodromeus bairdi gen. et sp. nov.Â

Rainer R. Schoch, Amy C. Henrici & Robert W. Hook (2020)
A new dissorophoid temnospondyl from the Allegheny Group (late Carboniferous) of Five Points, Mahoning County, Ohio (USA).
Journal of Paleontology Â(advance online publication)
DOI: https://doi.org/10.1017/jpa.2020.101
https://www.cambridge.org/core/journals/journal-of-paleontology/article/abs/new-dissorophoid-temnospondyl-from-the-allegheny-group-late-carboniferous-of-five-points-mahoning-county-ohio-usa/3811F77DA271BDC0E7262E58A8C12E49

A small temnospondyl skull from the upper Carboniferous Allegheny Group of Five Points, Ohio, is referred to a new dissorophoid, Palodromeus bairdi n. gen n. sp. The complete skull with mandibles is preserved in counterparts. It is characterized by, (1) elongated slit-like choana; (2) postfrontal, postorbital, and supratemporal bearing a distinct ridge; and (3) reduced parietal only two-thirds the length of the frontal. Phylogenetic analysis confirms a dichotomy between amphibamiforms and olsoniforms and places Palodromeus bairdi n. gen. n. sp. at the base of the olsoniforms, revealing an early stage in the evolution of that clade.

UUID: http://zoobank.org/3871e443-7888-4439-a7c1-9463bc4d87ab