NDLI: A new late Paleocene micromammal fauna from Montchenot (Paris Basin). Preliminary results

Content Provider	Springer Nature Link
Author	Jehle, Martin Godinot, Marc Delsate, Dominique Phélizon, Alain Pellouin, Jean Louis
Copyright Year	2012
Abstract	A diversified fauna of fossil mammals is described from the Thanetian Marnes de Montchenot near Reims (France, Paris Basin). The new fauna is composed mainly of micromammals, which are represented by isolated teeth and a few more complete dental remains. Multituberculates, insectivore-like mammals and louisinine “condylarths” are particularly common at Montchenot, and tiny toliapinid plesiadapiforms are relatively well represented. In contrast, the larger-sized plesiadapiform Plesiadapis and pleuraspidotheriid “condylarths” are less abundant than at Cernay or Berru. Special attention is paid to Neoplagiaulax nicolai, the most common species of multituberculate at Montchenot. The new sample of this species allows to reconsider the composition of its upper premolar series and the orientation of isolated deciduous anterior upper premolars in neoplagiaulacids. Insectivore-like mammals from Montchenot include a previously unrecognised adapisoriculid, known by the complete upper and lower molar series, which combines an Afrodon-like morphology with strong posterior cingula on its upper molars. Mammal fossils indicate an age of the Montchenot fauna close to Cernay (European mammalian reference level MP6), confirming previous age determinations based on mollusks and charophytes. Preservational biases including selective predation and hydrodynamic sorting, possibly in combination with specific palaeoenvironmental conditions related to deposition in a quiet freshwater milieu, seem to be responsible for the peculiar composition of the mammalian fauna from Montchenot compared to other late Paleocene localities in the Paris Basin.
Starting Page	487
Ending Page	496
Page Count	10
File Format	PDF
ISSN	18671594
Journal	Palaeobiodiversity and Palaeoenvironments
Volume Number	92
Issue Number	4
e-ISSN	18671608
Language	English
Publisher	Springer-Verlag
Publisher Date	2012-09-04
Publisher Place	Berlin, Heidelberg
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Thanetian Paris Basin Marnes de Montchenot Fossil mammals Biochronology Taphonomy Animal Systematics/Taxonomy/Biogeography Plant Systematics/Taxonomy/Biogeography Biodiversity Paleontology Freshwater & Marine Ecology
Content Type	Text
Resource Type	Article
Subject	Ecology Geology Ecology, Evolution, Behavior and Systematics Global and Planetary Change Paleontology

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