The oldest complete jawed vertebrates from the early Silurian of China
Molecular studies suggest that the origin of jawed vertebrates was no later than the Late
Ordovician period (around 450 million years ago (Ma)),. Together with disarticulated micro …
Ordovician period (around 450 million years ago (Ma)),. Together with disarticulated micro …
The oldest gnathostome teeth
Mandibular teeth and dentitions are features of jawed vertebrates that were first acquired by
the Palaeozoic ancestors,–of living chondrichthyans and osteichthyans. The fossil record …
the Palaeozoic ancestors,–of living chondrichthyans and osteichthyans. The fossil record …
Spiny chondrichthyan from the lower Silurian of South China
Modern representatives of chondrichthyans (cartilaginous fishes) and osteichthyans (bony
fishes and tetrapods) have contrasting skeletal anatomies and developmental trajectories …
fishes and tetrapods) have contrasting skeletal anatomies and developmental trajectories …
A symmoriiform from the Late Devonian of Morocco demonstrates a derived jaw function in ancient chondrichthyans
The Palaeozoic record of chondrichthyans (sharks, rays, chimaeras, extinct relatives) and
thus our knowledge of their anatomy and functional morphology is poor because of their …
thus our knowledge of their anatomy and functional morphology is poor because of their …
The early elasmobranch Phoebodus: phylogenetic relationships, ecomorphology and a new time-scale for shark evolution
L Frey, M Coates, M Ginter… - … of the Royal …, 2019 - royalsocietypublishing.org
Anatomical knowledge of early chondrichthyans and estimates of their phylogeny are
improving, but many taxa are still known only from microremains. The nearly cosmopolitan …
improving, but many taxa are still known only from microremains. The nearly cosmopolitan …
Mineralization of the Callorhinchus Vertebral Column (Holocephali; Chondrichthyes)
Members of the Chondrichthyes (Elasmobranchii and Holocephali) are distinguished by
their largely cartilaginous endoskeletons, which comprise an uncalcified core overlain by a …
their largely cartilaginous endoskeletons, which comprise an uncalcified core overlain by a …
Skeletal and soft tissue completeness of the acanthodian fossil record
Acanthodians are a poorly understood paraphyletic grade of extinct Palaeozoic fishes. They
play an increasingly prominent role in our understanding of vertebrate evolution as part of …
play an increasingly prominent role in our understanding of vertebrate evolution as part of …
Evolution of vertebrate gill covers via shifts in an ancient Pou3f3 enhancer
Whereas the gill chambers of jawless vertebrates open directly into the environment, jawed
vertebrates evolved skeletal appendages that drive oxygenated water unidirectionally over …
vertebrates evolved skeletal appendages that drive oxygenated water unidirectionally over …
Fossil evidence for a pharyngeal origin of the vertebrate pectoral girdle
MD Brazeau, M Castiello, A El Fassi El Fehri… - Nature, 2023 - nature.com
The origin of vertebrate paired appendages is one of the most investigated and debated
examples of evolutionary novelty,,,,,–. Paired appendages are widely considered as key …
examples of evolutionary novelty,,,,,–. Paired appendages are widely considered as key …
Broad snouted cladoselachian with sensory specialization at the base of modern chondrichthyans
C Klug, M Coates, L Frey, M Greif, M Jobbins… - Swiss Journal of …, 2023 - Springer
Abstract Throughout the Silurian and Devonian, cartilaginous fish successively evolved their
specialized skeletal and dental characteristics, and increasingly refined their sensory …
specialized skeletal and dental characteristics, and increasingly refined their sensory …