Colored dark brown with black spots, C. argus has a long, rounded body that is thick in the mid-section and tapers off towards the tail fin. Adults have long dorsal and anal fins, a small head, and ...

1 School of Earth Sciences, University of Bristol, Bristol, United Kingdom 2 Institute of Vertebrate Paleontology and Paleoanthropology, Chinese Academy of Sciences, Beijing, China The Triassic has ...

The Quiricó Formation presents an abundant and diversified fossil record, and is the only formation from the Cretaceous of the São Francisco basin with the occurrence of ostracodes. This formation was ...

This repository contains trained reference sets that can be used with the Ribosomal Database Project classifier (Wang et al., 2007) to taxonomically assign Eukaryote 18S rDNA sequences. The latest ...

About half of all vertebrate species today are ray-finned fishes (Actinopterygii), and nearly all of them belong to the Neopterygii (modern ray-fins). The oldest unequivocal neopterygian fossils are ...

The origin of birds and their flight has been heavily debated in the field of evolutionary biology since the late nineteenth century. Birds are the only living descendants of dinosaurs and, for ...

Piranhas are South American fish with razor-sharp teeth and a reputation for feeding frenzies. In fact, piranha means "tooth fish" in the Brazilian language of the Tupi people. However, not all ...

Best known for being featured in the movies “Finding Nemo” and “Finding Dory,” the clownfish has become a popular aquarium pet. Nemo and his dad, Marlin, are ocellaris clownfish, also ...

The success of teleost fishes, which represent roughly half of all vertebrate species, has attracted attention since Darwin. Numerous scenarios invoke elevated diversification in teleosts facilitated ...