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Zhelestid Mesozoic mammals revised



From: Ben Creisler
bcreisler@gmail.com


Mesozoic mammals rather than dinosaurs, but may be of interest:



ARCHIBALD, J. D. and AVERIANOV, A. (2012)
Phylogenetic analysis, taxonomic revision, and dental ontogeny of the
Cretaceous Zhelestidae (Mammalia: Eutheria).
Zoological Journal of the Linnean Society 164: 361–426
doi: 10.1111/j.1096-3642.2011.00771.x
http://onlinelibrary.wiley.com/doi/10.1111/j.1096-3642.2011.00771.x/abstract

The eutherian, family-level clade Zhelestidae is consistently although
weakly supported in five phylogenetic analyses that we performed on
all Cretaceous eutherians. Additionally in the fifth analysis, which
included some placentals, Zhelestidae is placed as a stem eutherian
clade rather than grouping within the crown clade Placentalia as
argued in some previous studies but not others. The subfamily
Zhelestinae, Dzharakuduk (Turonian –?Coniacian ages), Kyzylkum Desert,
Uzbekistan includes Zhelestes temirkayzk, Aspanlestes aptap,
Parazhelestes mynbulakensis (= Sorlestes budan), Parazhelestes
robustus, Eoungulatum kudukensis. Additional taxa for the time being
recognized as Zhelestidae incertae sedis are: Sheikhdzheilia rezvyii
(Cenomanian, Uzbekistan), Borisodon kara gen. nov. (=‘Sorlestes’kara)
(Turonian, Kazakhstan), Lainodon orueetxebarriai (Campanian or
Maastrichtian, Spain), Labes quintanillensis (Maastrictian, Spain),
Labes garimondi (Campanian, France), Gallolestes pachymandibularis
(Campanian, Mexico), Gallolestes agujaensis (Campanian, USA), and
Avitotherium utahensis (Campanian, USA). Eozhelestes mangit
(Cenomanian, Uzbekistan) is a questionable zhelestid (?Zhelestidae),
possibly stem to Zhelestidae. Paranyctoides (Asia and North America)
is often linked to Zhelestidae. Alostera, previously referred to
Zhelestidae, is a eutherian of unknown affinities. Associated skull
fragments permitted the first reconstruction of a zhelestid
(Aspanlestes) skull. Abundant dentulous and edentulous dentaries
allowed examination of dental replacement from the canine posteriorly
in Dzharakuduk zhelestids as follows: [dc, p1, dp2, p3, dp4, dp5]->
m1-> p2-> c, p4, m2-> p5-> m3.