Richard P. Dearden

The paper describes the first articulated chondrichthyan skeletal remains from the Upper Triassic, including cranial and postcranial elements, and provides insights into the paleoenvironment and phylogeny of Keuperodus brodiei.

This study examines the early ontogenetic development of tessellated calcified cartilage in chondrichthyans across four groups, revealing morphological diversity and developmental timing of specialized features.

This paper describes three-dimensional Cretaceous shark fossils that provide insights into the skeletal evolution of galeomorph sharks.

This study investigates the evolutionary trends of batoid pectoral fin skeletons, finding convergence, modularity, and integration drive disparity patterns, with habitats and swimming modes shaping evolution.

This study reconstructs the evolutionary history of holocephalians, finding that their diversification into deep-sea environments occurred after the Cretaceous-Paleogene extinction, contrasting with earlier hypotheses.

Chromosome-scale inshore hagfish genome places 1R before the cyclostome-gnathostome split and 2R in the gnathostome stem, and reveals two cyclostome-specific duplications (CR1, CR2).