| Xyrospondylus | |
|---|---|
| |
| Holotype cervical vertebra at the University of California Museum of Paleontology | |
| Scientific classification | |
| Kingdom: | |
| Phylum: | |
| Class: | |
| Family: | |
| Genus: | †Xyrospondylus |
| 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
[edit]References
[edit]- ^ R. R. Reisz. 1986. Pelycosauria. Handbuch der Paläoherpetologie / Encyclopedia of Paleoherpetology 17A:1-102 [J. Mueller/J. Dummasch/T. Liebrecht]
- ^ The main groups of non-mammalian synapsids at Mikko's Phylogeny Archive
- ^ "Xyrospondylus". Paleofile. Retrieved 21 May 2015.
- ^ 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
- ^ F. E. Peabody. 1957. Pennsylvanian Reptiles of Garnett, Kansas: Edaphosaurs. Journal of Paleontology 31(5):947-949 [J. Mueller/T. Liebrecht]
- ^ R. L. Carroll. 1988. Vertebrate Paleontology and Evolution 1-698 [A. Behrensmeyer/A. Behrensmeyer/M. Uhen]
| |||||||||||||||||||||||||||||||||||
| |||||||||||||||||||||||||||||||||||
| |||||||||||||||||||||||||||||||||||
| |||||||||||||||||||||||||||||||||||
| |||||||||||||||||||||||||||||||||||
Well, that’s interesting to know that Psilotum nudum are known as whisk ferns. Psilotum nudum is the commoner species of the two. While the P. flaccidum is a rare species and is found in the tropical islands. Both the species are usually epiphytic in habit and grow upon tree ferns. These species may also be terrestrial and grow in humus or in the crevices of the rocks.
View the detailed Guide of Psilotum nudum: Detailed Study Of Psilotum Nudum (Whisk Fern), Classification, Anatomy, Reproduction