Very shortly after the disappearance of the non‐avian dinosaurs, the first mammals that had
features similar to those of primates started appearing. These first primitive forms went on to …

In biology, there is currently a debate being waged about the basic principles of doing
taxonomy (eg, Benton, 2000; Cantino and De Queiroz, 2000; De Queiroz, 1994, 1997; De …

Plesiadapidae are a diverse monophyletic family of primate-like mammals that existed
during the Paleogene in Europe and North America. They are thought to be nested within …

In their paper ''Adaptive origins of primates revisited,''Soligo and Martin (2006) argued that
the common ancestor of primates of modern aspect (ie, euprimates) was larger than typically …

Biologists sometimes speak or write as if life in the past was pretty much like it is today, there
just wasn't as much of it! Living species are most familiar to all of us. The false impression …

Knowledge of plesiadapiform skeletal morphology and inferred ecological roles are critical
for establishing the evolutionary context that led to the appearance and diversification of …

Palaechthonid plesiadapiforms from the Palaeocene of western North America have long
been recognized as among the oldest and most primitive euarchontan mammals, a group …

Plesiadapiforms were among the most diverse and abundant of North American mammalian
groups during the Paleocene epoch. Their decline and extinction has been attributed to a …

The Middle Paleocene paromomyid Palaechthon nacimienti has the most primitive cranial
anatomy known for any plesiadapoid. In relative size and functional morphology, its molars …

The fossil record of early primates is largely comprised of dentitions. While teeth can indicate
phylogenetic relationships and dietary preferences, they say little about hypotheses …