The fin spines of a new neoselachian shark are described from die Upper Triassic of Aust
Cliff, Avon and Holwell, near Frome in Somerset. The spines are assigned to Palaeospinax …

Whereas cosmopolitan distribution patterns are established for many Late Devonian
vertebrates (eg, placoderms, onychodontiforms), few palaeobiogeographic studies have …

A tooth of Ptychodus decurrens (Chondrichthyes, Selachii) and part of a calcified
chondrichthyan vertebra from mudstone exposed in the Kangerdlugssuaq area, southern …

The first articulated dentition of† Ptychodus from Africa is described herein. The specimen,
likely coming from the Turonian of the Asfla area (Goulmima region, southeastern Morocco) …

Eorhincodon casei from Russia and Megachasma comanchensis from the United States are
two Cretaceous taxa initially described as putative planktivorous elasmobranchs, but the …

The Palaeospinacidae are a highly diverse clade (> 30 species) within the
Synechodontiformes, which are considered to be a monophyletic group of basal …

Based on a shark-bitten partial skeleton of an immature sirenian (Metaxytherium cf. medium)
from the middle Miocene of the Styrian Basin (Austria), we report on the oldest predator …

Dental and skeletal remains of Ptychodus mediterraneus from the Upper Cretaceous
Scaglia Rossa Formation of northeastern Italy are described and discussed herein, together …

The skeletal morphology of Paraorthacodus jurensis, a Late Jurassic neoselachian from
Nusplingen, is described based on the incomplete holotype and a newly discovered almost …