The extant blacknose shark Carcharhinus acronotus is a small-sized, tropical to
warmtemperate carcharhinid shark occurring along the western Atlantic coasts from North …

Nowadays, the requiem sharks comprise one of the most diverse and widespread families of
selachians, ie, Carcharhinidae. Among the carcharhinids, the genus Carcharhinus has the …

Priohybodus cf. P. arambourgi is reported for the first time from the Tacuarembó Formation of
Uruguay. This species is a hybodontid shark known previously only from Upper Jurassic and …

The study of the chondrichthyan fauna from the Angostura, Onzole, Canoa and Jama
formations, in the Neogene of Bordón and Manabí basins, Ecuador, reveals the presence of …

In this study we identify and describe fossil remains of sharks and rays from the Eocene
Tonosi Formation of Panama. This work includes the first report of Odontaspis sp. and† …

This newly described chondrichthyan fauna from the late Miocene Chucunaque Formation
of Lago Bayano reveals a prolific and highly diverse assemblage from Panama, and one of …

The Mesozoic chondrichthyan fossil record from northern South America is scarce and
poorly known containing only a few reports of lamniform and ptychodont species from the …

Tooth shapes and ornamentations certainly have high taxonomic potential in modern sharks
and batoids, and are almost the only diagnostic aspect of extinct neoselachians. However …

Teeth of Ptychodus are known from the uppermost Lower Cretaceous and throughout the
Upper Cretaceous (Albian to Maastrichtian), and have been reported from North and West …

Sampling of Cenomanian fossil-rich horizons within the La Luna Formation of two localities
in the Zulia and Trujillo states (northern Venezuela) yielded numerous shark teeth belonging …