Whence the beardogs? Reappraisal of the Middle to Late Eocene ‘Miacis’ from Texas, USA, and the origin of Amphicyonidae (Mammalia, Carnivora)

@article{Tomiya2016WhenceTB,
  title={Whence the beardogs? Reappraisal of the Middle to Late Eocene ‘Miacis’ from Texas, USA, and the origin of Amphicyonidae (Mammalia, Carnivora)},
  author={Susumu Tomiya and Zhijie Jack Tseng},
  journal={Royal Society Open Science},
  year={2016},
  volume={3}
}
The Middle to Late Eocene sediments of Texas have yielded a wealth of fossil material that offers a rare window on a diverse and highly endemic mammalian fauna from that time in the southern part of North America. These faunal data are particularly significant because the narrative of mammalian evolution in the Paleogene of North America has traditionally been dominated by taxa that are known from higher latitudes, primarily in the Rocky Mountain and northern Great Plains regions. Here we… Expand
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References

SHOWING 1-10 OF 181 REFERENCES
Ursidae (Mammalia, Carnivora) from the Late Oligocene of the “Phosphorites du Quercy” (France) and a reappraisal of the genus Cephalogale Geoffroy, 1862
TLDR
This work reports on karstic fissure fillings from the Quercy (France) which give an exceptional open laboratory for the study of evolution of vertebrates and especially mammals from the Eocene to the Early Miocene, and yields the best sample ever found of a hemicyonine ursid. Expand
New carnivoraforms (Mammalia) from the middle Eocene of California, USA, and comments on the taxonomic status of 'Miacis' gracilis
The middle Eocene constitutes an important period for understanding the early evolution of carnivoraforms and the origin of crown-group carnivorans. Here I describe two new genera of carnivoraformsExpand
Earliest Eocene Miacidae (Mammalia: Carnivora) from Northwestern Wyoming
Abstract Fossil carnivorans are described from earliest Eocene localities in the Clarks Fork and southern Bighorn basins of Wyoming. Three new species, Miacis rosei, Uintacyon gingerichi, andExpand
New material and evaluation of the chronostratigraphic position of Daphoenictis tedfordi (Mammalia, Carnivora, Amphicyonidae), a cat-like carnivoran from the latest Eocene of northwestern Nebraska, USA
One of the most enigmatic amphicyonid carnivorans, the cat-like Daphoenictis tedfordi, is now known from 12 cranio-dental specimens from North America. The most recently recovered specimen, a partialExpand
Small Oligocene amphicyonids from North America (Paradaphoenus, Mammalia, Carnivora). American Museum novitates ; no. 3331
Abstract North American amphicyonid carnivorans are important members of the mid-Cenozoic terrestrial carnivore community during the late Eocene to late Miocene (Duchesnean to Clarendonian). SpeciesExpand
Evolution of Large Carnivores During the Mid-Cenozoic of North America: The Temnocyonine Radiation (Mammalia, Amphicyonidae)
TLDR
The Temnocyoninae (Mammalia, Carnivora) is described and summarized, a subfamily of amphicyonid carnivores of considerable diversity and singular ecomorphology within Cenozoic faunas of North America, which sees the first carnivorans to occupy an ecological niche as large cursorial predators. Expand
Small Oligocene Amphicyonids from North America (Paradaphoenus, Mammalia, Carnivora)
Abstract North American amphicyonid carnivorans are important members of the mid-Cenozoic terrestrial carnivore community during the late Eocene to late Miocene (Duchesnean to Clarendonian). SpeciesExpand
New Carnivoraforms from the Latest Paleocene of Europe and Their Bearing on the Origin and Radiation of Carnivoraformes (Carnivoramorpha, Mammalia)
TLDR
The discovery of the earliest European carnivoraforms, based on two new taxa from the latest Paleocene of France and Romania, favor the hypothesis of a dispersal of these two genera from Europe to North America during the Paleocene-Eocene Thermal Maximum. Expand
A New Basal Caniform (Mammalia: Carnivora) from the Middle Eocene of North America and Remarks on the Phylogeny of Early Carnivorans
TLDR
Lycophocyon hutchisoni illuminates the morphological evolution of early caniforms leading to the origin of crown-group canoids and suggests that loss of the upper third molars and development of well-ossified entotympanics that are firmly fused to the basicranium are not associated with theorigin of the Carnivora as traditionally thought, but instead occurred independently in the Caniformia and the Feliformia. Expand
Middle Eocene Carnivoramorpha of the Uinta Basin, Utah
ABSTRACT The middle Eocene of North American was an important time in carnivoramorphan evolution, because it is when the order showed increases in diversity taxonomically and ecomorphologically. WeExpand
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