| 词条 | Taeniolabidoidea |
| 释义 |
| fossil_range = {{Fossil range|66|56|earliest=70}} Late Cretaceous-Paleocene | image = Taeniolabis NT small.jpg | image_caption = Taeniolabis taoensis life reconstruction. | taxon = Taeniolabidoidea | authority = | subdivision_ranks = Families & genera | subdivision =
}}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 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). References1. ^1 2 3 4 5 6 7 8 {{cite journal|last1=Williamson|first1=Thomas E.|last2=Brusatte|first2=Stephen L.|last3=Secord|first3=Ross|last4=Shelley|first4=Sarah|title=A new taeniolabidoid multituberculate (Mammalia) from the middle Puercan of the Nacimiento Formation, New Mexico, and a revision of taeniolabidoid systematics and phylogeny|journal=Zoological Journal of the Linnean Society|volume=177|pages=183–208|date=2015|doi=10.1111/zoj.12336}} 2. ^1 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
3 : Multituberculates|Paleocene extinctions|Late Cretaceous first appearances |
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