Phylogenetic analysis of a large dataset (72 taxa, 212 characters) focuses on the in-group
relationships of temnospondyls, the largest lower tetrapod clade. Representatives of all …

The phylogenetic positions of frogs, salamanders, and caecilians have been difficult to
establish. Data matrices based primarily on Paleozoic taxa support a monophyletic origin of …

Abstract The Joggins Fossil Cliffs constitute an upper Carboniferous (Pennsylvanian) locality
in Nova Scotia (Canada). This site, known for the rich record of fossils preserved in the …

The term “larva” is used for many different metazoans. Although this implies a uniform
meaning, the term has in fact been used to address immatures with very different …

Background Baurusuchidae is a group of extinct Crocodyliformes with peculiar, dog-faced
skulls, hypertrophied canines, and terrestrial, cursorial limb morphologies. Their importance …

The two vertebrate fossil assemblages from the? Middle Triassic Ntawere Formation have
been known since the 1960s, but little new work has been done since the description of …

The metoposaurid Dutuitosaurus ouazzoui, from the Carnian (Upper Triassic) of southern
Morocco is one of the best known temnospondyls; more than 75 specimens have been …

The origin of the Lissamphibia is the subject of continuing debate, and there is no current
consensus. Albeit often considered a different problem, the intrarelationships of crown …

Bone histology is an important tool for uncovering life history traits of extinct animals,
particularly those that lack modern analogs, such as the non-avian dinosaurs. In most …

The appendicular skeleton of the Lower Permian temnospondyl Eryops megacephalus
Cope, 1877, described and figured in detail, is similar to that of most temnospondyls, except …