Xyrospondylus
Holotype cervical vertebra at the University of California Museum of Paleontology
Scientific classification
Kingdom:
Animalia
Phylum:
Chordata
Class:
Synapsida
Family:
†Edaphosauridae
Genus:
†Xyrospondylus

Reisz, Heaton & Pynn, 1982
Type species
†Xyrospondylus ecordi
Reisz, Heaton & Pynn, 1982 (Peabody, 1957)
Synonyms

Xyrospondylus is an extinct genus of non-mammalian synapsids belonging to the Edaphosauridae.[1][2] The type species, X. ecordi,[3] was named in 1982;[4] it was originally named as a species of Edaphosaurus in 1957.[5]

It lived during the Pennsylvanian (Missourian) in Kansas and possibly also Colorado[6] and the holotype is known from a single cervical vertebra found in the Stanton Formation. A second specimen, consisting of a fragmentary pelvis, is also known. A third specimen, known from Colorado, is known, but it probably does not pertain to Xyrospondylus.

See also

References

  1. ↑ R. R. Reisz. 1986. Pelycosauria. Handbuch der Paläoherpetologie / Encyclopedia of Paleoherpetology 17A:1-102 [J. Mueller/J. Dummasch/T. Liebrecht]
  2. ↑ The main groups of non-mammalian synapsids at Mikko's Phylogeny Archive
  3. ↑ "Xyrospondylus". Paleofile. Retrieved 21 May 2015.
  4. ↑ R. R. Reisz, M. J. Heaton, and B. R. Pynn. 1982. Vertebrate Fauna of Late Pennsylvanian Rock Lake Shale near Garnett, Kansas: Pelycosauria. Journal of Paleontology 56(3):741-750
  5. ↑ F. E. Peabody. 1957. Pennsylvanian Reptiles of Garnett, Kansas: Edaphosaurs. Journal of Paleontology 31(5):947-949 [J. Mueller/T. Liebrecht]
  6. ↑ R. L. Carroll. 1988. Vertebrate Paleontology and Evolution 1-698 [A. Behrensmeyer/A. Behrensmeyer/M. Uhen]


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