A better understanding the functioning of Earth System in the context of past climatic
upheavals is essential for predictions about the fate of the diversity of life and the future of …

Environmental changes governed the diversity of marine ecosystems and the evolution of
marine reptiles during the Jurassic. Abrupt climatic changes, mainly cooling, produced …

Elasmobranchs (sharks and rays) are a charismatic lineage of unquestionable ecological
importance in past and present marine ecosystems. Represented by over 1200 species …

Asteracanthus was one of the most common Mesozoic hybodontiform chondrichthyans,
given that remains traditionally referred to this genus have been reported almost worldwide …

The Late Jurassic-Early Cretaceous (164–100 Ma) represents one of the main transitional
periods in life history. Recent studies unveiled a complex scenario in which abiotic and …

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 …

The Late Jurassic elasmobranch Protospinax annectans is often regarded as a key species
to our understanding of crown group elasmobranch interrelationships and the evolutionary …

Hybodont sharks were some of the most successful chondrichthyan lineages of all time, first
occurring in the Devonian and becoming extinct in the Late Cretaceous. The end-Permian …

Here, we provide a detailed taxonomic reassessment of a historically collected
chondrichthyan dental assemblage from the lower Kimmeridgian of Czarnogłowy in north …

A partial skeleton of a hybodontiform shark-like chondrichthyan from the Upper Jurassic
Kimmeridge Clay Formation of Dorset, England, is described and designated as a new …