Results 1 to 10 of about 13,734 (131)

Reconstructed masticatory biomechanics of Peligrotherium tropicalis, a non-therian mammal from the Paleocene of Argentina [PDF]

open access: yesActa Palaeontologica Polonica, 2022
The large, bunodont, mammal Peligrotherium tropicalis is an enigmatic member of the earliest Paleocene fauna of Punta Peligro, Argentina. While being a contemporary of many of the earliest large-bodied “archaic ungulates” in the Northern Hemisphere ...
TONY HARPER   +2 more
doaj   +1 more source

Petrosal and cranial vascular system of the early Eocene palaeoryctid mammal Eoryctes melanus from northwestern Wyoming, USA [PDF]

open access: yesActa Palaeontologica Polonica, 2022
The petrosal and neighboring bones of the early Eocene palaeoryctid mammal Eoryctes melanus are described in tympanic and endocranial views based on CT scan data of the holotype. A second cranium of E.
JOHN R. WIBLE
doaj   +1 more source

Molar morphology and occlusion of the Early Jurassic mammaliaform Erythrotherium parringtoni [PDF]

open access: yesActa Palaeontologica Polonica, 2022
The South African Early Jurassic morganucodontan Erythrotherium is considered by some authors to be potentially synonymous with Morganucodon, due to similar tooth morphology.
KAI R.K. JÄGER   +3 more
doaj   +1 more source

The beaver Steneofiber depereti from the lower Upper Miocene hominid locality Hammerschmiede and remarks on its ecology [PDF]

open access: yesActa Palaeontologica Polonica, 2022
Dental remains of a medium sized beaver from the early Late Miocene Hammerschmiede locality (MN 7/8) in the Northern Alpine Foreland Basin (Southern Germany, Bavaria) are described and assigned to Steneofiber depereti.
THOMAS LECHNER, MADELAINE BÖHME
doaj   +1 more source

New craniodental material of the typotherian notoungulates from the upper Oligocene of Mendoza, central-western Argentina and their taxonomical importance [PDF]

open access: yesActa Palaeontologica Polonica, 2022
Among the great diversity of Oligocene mammals from Quebrada Fiera (Mendoza Province, Argentina), three families of typotherian notoungulates are very abundant.
SANTIAGO HERNÁNDEZ DEL PINO   +2 more
doaj   +1 more source

Myoglobin primary structure reveals multiple convergent transitions to semi-aquatic life in the world's smallest mammalian divers

open access: yeseLife, 2021
The speciose mammalian order Eulipotyphla (moles, shrews, hedgehogs, solenodons) combines an unusual diversity of semi-aquatic, semi-fossorial, and fossorial forms that arose from terrestrial forbearers. However, our understanding of the ecomorphological
Kai He   +8 more
doaj   +1 more source

Evolutionary transcriptomics implicates new genes and pathways in human pregnancy and adverse pregnancy outcomes

open access: yeseLife, 2021
Evolutionary changes in the anatomy and physiology of the female reproductive system underlie the origins and diversification of pregnancy in Eutherian (‘placental’) mammals.
Katelyn Mika   +5 more
doaj   +1 more source

First clear evidence of Anoplotherium (Mammalia, Artiodactyla) in the Iberian Peninsula: an update on the Iberian anoplotheriines

open access: yesThe Anatomical Record, EarlyView., 2023
Abstract Anoplotheriines (Mammalia, Artiodactyla) were enigmatic, medium‐ to large‐sized ungulates that lived in Western Europe from the late middle Eocene to the earliest Oligocene. The unusual dental and postcranial specializations of these Paleogene mammals have no equivalent in other Cenozoic or contemporaneous artiodactyls on Holarctic landmasses.
Ainara Badiola   +3 more
wiley   +1 more source

Stable isotope analysis of middle Miocene mammals from the Siwalik sub-Group of Pakistan [PDF]

open access: yesActa Palaeontologica Polonica, 2021
Stable isotope analysis is pivotal for investigating the paleodiet and paleoecology of past mammals. In this paper, we analyzed thirty fossil enamel samples belonging to the families Suidae, Rhinocerotidae, and Deinotheriidae for δ13Cenamel and ...
Muhammad Tahir Waseem   +6 more
doaj   +1 more source

New material of the trechnotherian mammal Lactodens from the Early Cretaceous Jehol Biota: Comparison with Origolestes and implications for mammal evolution [PDF]

open access: yesActa Palaeontologica Polonica, 2022
A new specimen of Lactodens sheni, the only known spalacolestine from the Early Cretaceous Jehol Biota, is reported from the Jiufotang Formation, Liaoning, China.
FANGYUAN MAO, CUNYU LIU, JIN MENG
doaj   +1 more source

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