In the tradition of GG Simpson's classic work, Kenneth D. Rose's The Beginning of the Age of
Mammals analyzes the events that occurred directly before and after the mysterious KT …

Narwhal tusks, although well described and characterized within publications, are clouded
by contradictory references, which refer to them as both incisors and canines. Vestigial teeth …

Background Gaudeamus is an enigmatic hystricognathous rodent that was, until recently,
known solely from fragmentary material from early Oligocene sites in Egypt, Oman, and …

An epicontinental sea bisected West Africa periodically from the Late Cretaceous to the early
Eocene, in dramatic contrast to the current Sahara Desert that dominates the same region …

Un nouveau matériel de Phosphatherium escuilliei Gheerbrant, Sudre & Cappetta, 1996 de
l'Éocène basal du Bassin des Ouled Abdoun (Maroc) permet une première reconstitution du …

Inquiring into the paleoecology of extinct forms is always a challenge, particularly when the
taxa under study correspond to derived ecomorphs of ancient and completely extinct clades …

In mammals, social and sexual behaviours are largely mediated by the vomeronasal system
(VNS). The accessory olfactory bulb (AOB) is the first synaptic locus of the VNS and ranges …

The Mesozoic–Cenozoic transition was a period of dramatic global change during which
time the Earth's continents were in the process of fragmenting from a large, relatively …

A new hyracoid genus and species, Dimaitherium patnaiki from the early Late Eocene (early
Priabonian) Birket Qarun Formation in the Fayum Depression, Egypt, is described. The …

Fishes from the late Eocene and Oligocene Jebel Qatrani Formation of the Fayum, Egypt,
have been collected for many years, but have not been extensively studied. Collections from …