Taeniolabis

Taeniolabis
Temporal range: Paleocene
Taeniolabis taoensis
Scientific classification
Kingdom: Animalia
Phylum: Chordata
Class: Mammalia
Order: Multituberculata
Superfamily: Taeniolabidoidea
Genus: Taeniolabis
Cope, 1882
Species
  • T. lamberti
  • T. taoensis
Restoration of T. taoensis
Taeniolabis taoensis skull, Am. Mus. 16321.

Taeniolabis ("Ribbon Lips") is a genus of extinct multituberculate mammal from the Paleocene of North America. It is the largest known member of the extinct order Multituberculata, as well as the largest non-therian mammal: T. taoensis possibly exceeds 100 kg.[1] It is within the suborder of Cimolodonta and is a member of the superfamily Taeniolabidoidea. The genus was named by Edward Drinker Cope in 1882. Species have also been placed with the genera Catopsalis and Polymastodon Cope, 1882.

The species Taeniolabis lamberti was named by N.B. Simmons in 1987. It has been found in the Puercan (Paleocene)-age Tullock Formation of Montana. It is not quite as large as T. taoensis, but still a hefty size for a multituberculate.

The species Taeniolabis taoensis was named by Cope E.D. in 1882. It is also known as Catopsalis pollux (Cope, 1882); Polymastodon attenuatus (Cope, 1885); P. latimolis Cope, 1885; P. selenodus Osborn H.F. and Earle C., 1895; P. taoensis (Cope, 1882); T. attetuatus; T. scalper (Cope 1884); T. sulcatus (Cope 1882a); T. triserialis (Granger & Simpson, 1929). They are found in the Puercan-age Nacimiento Formation of New Mexico and Wyoming and in the Ravenscrag Formation of Saskatchewan. This species had a 6 in. (16 cm) long skull. It was a real heavyweight; the largest known multituberculate, this creature was as big as the giant beaver.

Life reconstruction of Taeniolabis taoensis

References

  1. Thomas E. Williamson, Stephen L. Brusatte, Ross Secord, Sarah Shelley, A new taeniolabidoid multituberculate (Mammalia) from the middle Puercan of the Nacimiento Formation, New Mexico, and a revision of taeniolabidoid systematics and phylogeny, 5 OCT 2015, doi: 10.1111/zoj.12336: "Taeniolabidoids underwent a modest taxonomic radiation during the early Palaeocene of North America and underwent a dramatic increase in body size, with Taeniolabis taoensis possibly exceeding 100 kg"
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