Chondrichthyans have a long evolutionary history, reaching back over 450 million years.
Despite the longevity of the chondrichthyan fossil record, it is remarkably incomplete. This …

Chondrichthyans are one of two major clades of living jawed vertebrates, with a rich fossil
record potentially extending back to the Late Ordovician (455 million years ago, mya). The …

Abstract Chondrichthyans (sharks, rays, skates, and chimaeras) are a diverse taxonomic
clade inhabiting bodies of water all over the world. As a lineage, chondrichthyans split from …

Chondrichthyans are cartilaginous fishes that include the extant chimaeras, sharks, and
batoids, and their extinct relatives. In this dissertation, I examined the growth, development …

Aim Modern sharks are a diverse and highly threatened group playing important roles in
ecosystems. They have an abundant fossil record spanning at least 250 million years (Myr) …

Approximately half of the known chondrichthyans (sharks, skates, rays, and chimaeras), 575
of 1207 species (47.6%, Table 1), live in the deep ocean (below 200 m), yet little is known of …

Chondrichthyan fishes are probably the most successful of all fishes if success is measured
in terms of historical endurance. Indeed, they have survived the mass extinctions of the last …

Sharks are iconic predators in today's oceans, yet their modern diversity has ancient origins.
In particular, present hypotheses suggest that a combination of mass extinction, global …

Sharks, rays, chimaeras, and relatives (Class Chondrichthyes) comprise an important
component of living vertebrate diversity, with two subclasses, 18 orders,~ 55 families, and …

Science is continually evolving, with recent developments in some fields, such as
conservation biology, leading to shifts in priorities and needs. Recent international …