Plesiadapid Mammals from the Latest Paleocene of France Offer New Insights on the Evolution of Plesiadapis during the Paleocene-Eocene Transition

  title={Plesiadapid Mammals from the Latest Paleocene of France Offer New Insights on the Evolution of Plesiadapis during the Paleocene-Eocene Transition},
  author={Eric de Bast and Cyril Gagnaison and Thierry Smith},
  journal={Journal of Vertebrate Paleontology},
ABSTRACT Plesiadapidae are among the most successful mammal families of the Paleocene, but in North America they disappear abruptly around the Paleocene-Eocene boundary. In contrast, in Europe, they survive a few million years into the Eocene, although only as the genus Platychoerops. The latest Paleocene deposits of Petit-Pâtis (Paris Basin, France) have produced three new plesiadapid species, one of each genus known in Europe: Plesiadapis ploegi, sp. nov., Platychoerops boyeri, sp. nov… 

Systematics and Paleobiology of Chiromyoides (Mammalia, Plesiadapidae) from the Upper Paleocene of Western North America and Western Europe

Most of the derived anatomical features that distinguish Chiromyoides from closely related plesiadapids indicate that it was yet another occupant of the lucrative ‘mammalian woodpecker’ niche, alongside the extant Malagasy lemur Daubentonia, the extant phalangeroid marsupial Dactylopsila, early Cenozoic placental Apatemyidae, and possibly the middle Cen Jurassic metatherian Yalkaparidon.

Developmental rules of primate dental evolution align microevolution with macroevolution

This issue is reframe this issue by asking if using evo-devo models to quantify biological variation can improve the explanatory power of comparative models, thus helping to bridge the gap between micro- and macroevolution.



Earliest record of Platychoerops (Primates, Plesiadapidae), a new species from Mouras Quarry, Mont de Berru, France.

It is suggested that character displacement in a Paleocene immigrant population of P. cookei resulting from competition with sympatric P. tricuspidens, as a likely scenario for the evolution of Platychoerops, refutes the idea of a single lineage for these taxa.

New North American Plesiadapidae (Mammalia, Primates) and a Biostratigraphic Zonation of the Middle and Upper Paleocene

The stratigraphic and phylogenetic relationships of the species of North American Plesiadapidae are outlined, and the Middle and Late Paleocene is divided into seven superposed biostratigraphic zones based on the evolution of Pronothodectes and PlesiADapis.

Pronothodectes gaoi n. sp. from the late Paleocene of Alberta, Canada, and the early evolution of the Plesiadapidae (Mammalia, Primates)

  • R. C. Fox
  • Geology, Biology
    Journal of Paleontology
  • 1990
The stratigraphic occurrences of the fossils described here show that ancestral plesiadapids having I2 and the lower canine did not evolve anagenetically into Plesiadapis at the Torrejonian–Tiffanian boundary, as had been previously believed and that knowledge of the infrequently known anterior lower dentition may be necessary for recognition of some, otherwise indistinguishable, plesiADapid species.


ABSTRACT Several recently discovered fossil specimens add to our knowledge of plesiadapiform primates. Micromomys willwoodensis, new species, is a diminutive microsyopid from the early Eocene (early

Plesiadapidae (Mammalia, Primates) from the Late Paleocene FORT Union Formation of the Piceance Creek BASIN, Colorado

Abstract Utilizing the occurrence of plesiadapid mammals, we recognize both Tiffanian and Clarkforkian ages in the Fort Union Formation of the Piceance Creek Basin of Colorado. Five species of

A new species of the basal plesiadapiform Purgatorius (Mammalia, Primates) from the early Paleocene Ravenscrag Formation, Cypress Hills, southwest Saskatchewan, Canada: further taxonomic and dietary diversity in the earliest primates

A new species of Purgatorius is described, from the early Paleocene (Puercan) Ravenscrag Formation of southwestern Saskatchewan, that extends the range of purgatoriid dental disparity toward greater omnivory than had been known before.

The oldest Cenozoic mammal fauna of Europe: implication of the Hainin reference fauna for mammalian evolution and dispersals during the Paleocene

The mammal fauna of Hainin is particularly interesting as the oldest in the Cenozoic of Europe, and the earliest reference level of the mammalian biochronological scale for the European Palaeogene, and an analysis of the fauna as a whole (relative abundance and species richness) is presented.


A phylogenetic analysis based on 73 characters scored for all species of Elphidotarsius, Pronothodectes, and Saxonella, as well as Purgatorius unio, PurgATORius janisae, Pandemonium dis, Chronolestes simul, and Carpodaptes hazelae, indicates that Elphodotarius is a paraphyletic stem taxon at the base of Carpolestidae.

New craniodental material of Pronothodectes gaoi Fox (Mammalia, "Plesiadapiformes") and relationships among members of Plesiadapidae.

Previously unpublished dentitions and the first skull and isolated petrosals of the plesiadapid Pronothodectes gaoi, collected from middle Tiffanian localities of the Paskapoo Formation in Alberta, are described and craniodental morphology supports a basal position of P. Gaoi among species of Plesiadapidae.