University and Museum vertebrate paleontology departments (degree- and non-degree-granting).

The Anapsids first appeared in the fossil record in the late Carboniferous. They are distinguished by not having any temporal openings in the skull. The only living reptiles with anapsid skulls are the Testudines, which include the tortoises, turtles and terrapins.

This category is for websites dealing specifically with the fossil record of birds.

This category is for websites dealing specifically with conodonts. Conodont elements are fossils of phosphatic tooth-like structures now believed to be part of the feeding apparatus of extinct early vertebrates.

Group of reptiles characterised by having two holes (temporal fenestra) in each side of their skulls. The first diapsids appeared in the late Carboniferous period. Living diapsids include all crocodiles, lizards, snakes and tuatara.

Dinosaurs were a focus of interest for people for hundreds of years before the release of "Jurassic Park." These fascinating Mesozoic reptiles were one of the first fossil groups to have a major presence on the internet, and the number of dinosaur websites grows every day. This category contains a wide variety of dinosaur websites, from children's art sites to highly technical taxonomic sites.

During the Devonian Period vertebrate life underwent a fundamental change, moving gradually from the water to the land. The transformation of fish into tetrapods (animals with four limbs) ranks alongside the development of the backbone and the amniote egg as a key moment in animal evolution.

This category is for websites dealing specifically with the fossil record of fish.

This category is for websites dealing specifically with the fossil record of mammals.

This category is for websites dealing specifically with the fossil record of marine reptiles such as mososaurs.

This category is for organizations dedicated to the scientific study of the vertebrate fossil record.

This category is for websites dealing with specific professional paleontologists who specialize in the study of the vertebrate fossil record.

This category is for websites dealing specifically with the fossil record of pterosaurs, which were winged reptiles of the Mesozoic Era.

Salientia (Anura) includes frogs, toads and their close fossil relatives which are first known from the Early Triassic.

The Synapsids, or mammal-like reptiles, were the dominant land animals of the late Palaeozoic and early Triassic. They include mammals and their ancestors, the pelycosaurs, therapsids and cynodonts. They are distinguished by the position of temporal openings in the skull behind the eyes which provides an anchor for jaw muscles, resulting in stronger jaws.