Temporal range: Late Carboniferous - Early Permian, 306.5–295.0 Ma
PreꞒ
Ꞓ
O
S
D
C
P
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Pg
N
Cast of the L. paludis holotype (YPM 811) on display at the Redpath Museum, Montreal
Scientific classification
Domain:
Eukaryota
Kingdom:
Animalia
Phylum:
Chordata
Order:
†Diadectomorpha
Family:
†Limnoscelidae
Genus:
†Limnoscelis Williston, 1911
Type species
†Limnoscelis paludis
Williston, 1911
Other species
†L. dynatis Berman and Sumida, 1990
Limnoscelis (/limˈnäsələ̇s/, meaning "marsh footed") was a genus of large diadectomorph tetrapods from the Late Carboniferous to early Permian of western North America. It includes two species: the type species Limnoscelis paludis from New Mexico,[1] and Limnoscelis dynatis from Colorado,[2] both of which are thought to have lived concurrently.[3] No specimens of Limnoscelis are known from outside of North America.[1][2][4]Limnoscelis was carnivorous,[1] and likely semiaquatic,[1] though it may have spent a significant portion of its life on land.[5]Limnoscelis had a combination of derived amphibian and primitive reptilian features,[6] and its placement relative to Amniota has significant implications regarding the origins of the first amniotes.[7][8]
^ abcdWilliston, S.W. (1911). "A new family of reptiles from the Permian of New Mexico". The American Journal of Science. 4. 33 (185): 378–398. Bibcode:1911AmJS...31..378W. doi:10.2475/ajs.s4-31.185.378.
^ abBerman, D.S.; Sumida, S.S. (1990). "A new species of Limnoscelis (Amphibia, Diadectomorpha) from the Late Pennsylvanian Sangre de Cristo Formation of Central Colorado". Annals of Carnegie Museum. 59 (4): 303–341. doi:10.5962/p.240774. S2CID 92022042.
^Fracasso, M.A. (1983). "Cranial Osteology, Functional Morphology, Systematics, and Paleoenvironment of Limnoscelis paludis Williston". Dissertation.
^Cite error: The named reference :6 was invoked but never defined (see the help page).
^Kennedy, N.K. (2010). "Redescription of the Postcranial Skeleton of Limnoscelis paludis Williston (Diadectomorpha: Limnoscelidae) from the Upper Pennsylvanian of El Cobre Canyon, Northern New Mexico". New Mexico Museum of Natural History and Science Bulletin. 49: 211–220.
^Cite error: The named reference :2 was invoked but never defined (see the help page).
^Laurin, M.; Reisz, R.R. (1995). "A Reevaluation of Early Amniote Phylogeny". Zoological Journal of the Linnean Society. 113 (2): 165–223. doi:10.1111/j.1096-3642.1995.tb00932.x.
^Berman, D.S.; Sumida, S.S.; Lombard, R.E. (1992). "Reinterpretation of the Temporal and Occipital Regions in Diadectes and the Relationships of Diadectomorphs". Journal of Paleontology. 66 (3): 481–499. Bibcode:1992JPal...66..481B. doi:10.1017/S0022336000034028. S2CID 73547163.
America. It includes two species: the type species Limnoscelis paludis from New Mexico, and Limnoscelis dynatis from Colorado, both of which are thought...
Limnoscelidae contained large carnivores or piscivores. The largest genus, Limnoscelis could grow to at least 1.5 meters. The family had pointed and slightly...
recurved at the tip. Two species assigned to the only genus of the family. Limnoscelis (two species) is the nominal genus for which the family was erected....
"Braincase and Inner Ear Anatomy of the Late Carboniferous Tetrapod Limnoscelis dynatis (Diadectomorpha) Revealed by High-Resolution X-ray Microcomputed...
found in ichthyosaurs, phytosaurs, basal stem-mammals (e.g. Ophiacodon), Limnoscelis, and temnospondyls. When endosteal Haversian systems are considered,...
diminutive limbs, while others (e.g. Seymouria, Solenodonsaurus, Diadectes, Limnoscelis) were so reptile-like that until quite recently they actually had been...
"Braincase and Inner Ear Anatomy of the Late Carboniferous Tetrapod Limnoscelis dynatis (Diadectomorpha) Revealed by High-Resolution X-ray Microcomputed...
space using a 'lappet' of the parietal bones. However, in Westlothiana, Limnoscelis, and lepospondyls, this space is filled by an expansion of the rear branch...
weberensis – type locality for species †Leptaena †Leptodesma †Limnoscelis †Limnoscelis dynatis – type locality for species †Limnoscelops – type locality...
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