Taeniolabidoidea is a group of extinct mammals known from North America and Asia. They were the largest members of the extinct order Multituberculata, as well as the largest non-therian mammals. Lambdopsalis even provides direct fossil evidence of mammalian fur in a fairly good state of preservation for a 60-million-year-old animal. Some of these animals were large for their time; Taeniolabis taoensis is the largest known multituberculate and though smaller, Yubaatar is the largest known Mesozoic Asian multituberculate.[2] Average members of the Taeniolaboidea were about beaver-sized and the largest even reached sizes comparable to the largest beavers like Castoroides, up to about 100 kilograms.[1]
The group was initially established as a suborder, before being assigned the rank of a superfamily by McKenna and Bell in 1997 (see Kielan-Jaworowska and Hurum (2001) p. 391-392). Two families are recognised: the primarily North American Taeniolabididae, composed of Taeniolabis and Kimbetopsalis, and the exclusively Asian Lambdopsalidae, composed of Lambdopsalis, Sphenopsalis and Prionessus, with Valenopsalis being a basal form outside of either clade.[1] Some of the fossils are well-preserved. Though the possible taeniolabidoid Bubodens is known from the LancianLate Cretaceous deposits of South Dakota,[1] and Yubaatar is known from Late Cretaceous deposits in the Henan Province,[2] the clade is otherwise only clearly represented in Paleocenestrata.[1]
Derived characteristics of the taxon (apomorphies) include: "snout short and wide with anterior part of zygomatic arches directed transversely, resulting in a square-like shape of the skull (shared with Kogaionidae); frontals small, pointed posteriorly, almost or completely excluded from the orbital rim," (Kielan-Jaworowska and Hurum 2001, p. 417).
Referencesedit
^ abcdefghiWilliamson, Thomas E.; Brusatte, Stephen L.; Secord, Ross; Shelley, Sarah (2015). "A new taeniolabidoid multituberculate (Mammalia) from the middle Puercan of the Nacimiento Formation, New Mexico, and a revision of taeniolabidoid systematics and phylogeny". Zoological Journal of the Linnean Society. 177: 183–208. doi:10.1111/zoj.12336.
^ abL. Xu, X. Zhang, H. Pu, S. Jia, and J. Zhang, J., and J. Meng. 2015. Largest known Mesozoic multituberculate from Eurasia and implications for multituberculate evolution and biology. Scientific Reports 5(14950):1-11
Kielan-Jaworowska Z. and Hurum J.H., "Phylogeny and Systematics of multituberculate mammals". Paleontology44, p. 389-429, 2001.
McKenna M.C. and Bell S.K., (1997), Classification of Mammals Above the Species Level. Columbia University Press, 1997.
Much of this information has been derived from MESOZOIC MAMMALS: Eucosmodontidae, Microcosmodontidae and Taeniolabidoidea, an Internet directory.
November 16, 2023
taeniolabidoidea, group, extinct, mammals, known, from, north, america, asia, they, were, largest, members, extinct, order, multituberculata, well, largest, therian, mammals, lambdopsalis, even, provides, direct, fossil, evidence, mammalian, fairly, good, stat. Taeniolabidoidea is a group of extinct mammals known from North America and Asia They were the largest members of the extinct order Multituberculata as well as the largest non therian mammals Lambdopsalis even provides direct fossil evidence of mammalian fur in a fairly good state of preservation for a 60 million year old animal Some of these animals were large for their time Taeniolabis taoensis is the largest known multituberculate and though smaller Yubaatar is the largest known Mesozoic Asian multituberculate 2 Average members of the Taeniolaboidea were about beaver sized and the largest even reached sizes comparable to the largest beavers like Castoroides up to about 100 kilograms 1 TaeniolabidoideaTemporal range 66 56 Ma PreꞒ Ꞓ O S D C P T J K Pg N Late Cretaceous PaleoceneTaeniolabis taoensis life reconstruction Scientific classificationDomain EukaryotaKingdom AnimaliaPhylum ChordataClass MammaliaOrder MultituberculataSuborder CimolodontaSuperfamily TaeniolabidoideaFamilies and generaValenopsalis 1 Catopsalis paraphyletic 1 Bubodens 1 Yubaatar Taeniolabididae Taeniolabis Kimbetopsalis 1 Lambdopsalidae 1 Lambdopsalis Sphenopsalis PrionessusThe group was initially established as a suborder before being assigned the rank of a superfamily by McKenna and Bell in 1997 see Kielan Jaworowska and Hurum 2001 p 391 392 Two families are recognised the primarily North American Taeniolabididae composed of Taeniolabis and Kimbetopsalis and the exclusively Asian Lambdopsalidae composed of Lambdopsalis Sphenopsalis and Prionessus with Valenopsalis being a basal form outside of either clade 1 Some of the fossils are well preserved Though the possible taeniolabidoid Bubodens is known from the Lancian Late Cretaceous deposits of South Dakota 1 and Yubaatar is known from Late Cretaceous deposits in the Henan Province 2 the clade is otherwise only clearly represented in Paleocene strata 1 Derived characteristics of the taxon apomorphies include snout short and wide with anterior part of zygomatic arches directed transversely resulting in a square like shape of the skull shared with Kogaionidae frontals small pointed posteriorly almost or completely excluded from the orbital rim Kielan Jaworowska and Hurum 2001 p 417 References edit a b c d e f g h i Williamson Thomas E Brusatte Stephen L Secord Ross Shelley Sarah 2015 A new taeniolabidoid multituberculate Mammalia from the middle Puercan of the Nacimiento Formation New Mexico and a revision of taeniolabidoid systematics and phylogeny Zoological Journal of the Linnean Society 177 183 208 doi 10 1111 zoj 12336 a b L Xu X Zhang H Pu S Jia and J Zhang J and J Meng 2015 Largest known Mesozoic multituberculate from Eurasia and implications for multituberculate evolution and biology Scientific Reports 5 14950 1 11 Kielan Jaworowska Z and Hurum J H Phylogeny and Systematics of multituberculate mammals Paleontology 44 p 389 429 2001 McKenna M C and Bell S K 1997 Classification of Mammals Above the Species Level Columbia University Press 1997 Much of this information has been derived from 1 MESOZOIC MAMMALS Eucosmodontidae Microcosmodontidae and Taeniolabidoidea an Internet directory Retrieved from https en wikipedia org w index php title Taeniolabidoidea amp oldid 1058003072, wikipedia, wiki, book, books, library,
