The charismatic trumpetfishes, goatfishes, dragonets, flying gurnards, seahorses, and
pipefishes encompass a recently defined yet extraordinarily diverse clade of percomorph …

It has been hypothesized that morphological diversity within clades can be generated by
simple alterations of shared developmental programs. However, few studies have examined …

ABSTRACT A nearly complete and partially articulated skeleton of Mesoscalops, a genus of
fossorial insectivore hitherto known only by isolated teeth and some bones of the forelimb, is …

Aim To assess the genealogical relationships of widespread montane rattlesnakes in the
Crotalus triseriatus species group and to clarify the role of Late Neogene mountain building …

Abstract Background The Pleistocene closure of Isthmus of Panama, separating the basins
of the Eastern Pacific and the Caribbean Sea, created a unique natural experiment that …

Here, we review population genetic, phylogeographic, and phylogenetic studies on
xenarthrans and show how this information fits in current discussions about patterns of …

The subfamily Mylodontinae, typified by Mylodon, is known from the Colloncuran (late
Miocene of Patagonia, Argentina) to the late Pleistocene of South America and North …

A new genus and species of sloth (Eionaletherium tanycnemius gen. et sp. nov.) recently
collected from the Late Miocene Urumaco Formation, Venezuela (northern South America) …

A phylogeny of tetrapods is inferred from nearly complete sequences of the nuclear RAG-1
gene sampled across 88 taxa encompassing all major clades, analyzed via parsimony and …

Here, I combine previously underutilized models and priors to perform more biologically
realistic phylogenetic inference from morphological data, with an example from squamate …