First record of the hybodont shark genus,“Polyacrodus” sp.,(Chondrichthyes; Polyacrodontidae) from the Kiowa Formation (Lower Cretaceous) of McPherson County …

MJ Everhart - Transactions of the Kansas Academy of Science, 2004 - BioOne
Three unassociated tooth fragments of the hybodont shark, Polyacrodus sp., were recovered
from a quarry in the Kiowa Formation (Lower Cretaceous, Albian), McPherson County …

[引用][C] An unusual new fossil shark (Pisces: Chondrichthyes) from the Late Devonian of South Africa

ME Anderson, JA Long, RW Gess, N Hiller - 1999

A middle Eocene basking shark (Lamniformes, Cetorhinidae) from Antarctica.

AL Cione, MA Reguero - Antarctic Science, 1998 - cambridge.org
A proximal fragment of a gill raker identified as belonging to a shark of the genus Cetorhinus
was collected from middle Eocene deposits of the La Meseta Formation in the northern part …

Skeletal anatomy of the Late Cretaceous shark,Squalicorax (Neoselachii: Anacoracidae)

K Shimada, DJ Cicimurri - Palaeontologische Zeitschrift, 2005 - Springer
The paleobiology of the Cretaceous neoselachian shark, Squalicorax, has largely been
based on isolated teeth. We examined partial and nearly complete skeletons of three …

Lamniform sharks from the Cenomanian (upper Cretaceous) of Venezuela

G Guinot, JD Carrillo-Briceno - Cretaceous Research, 2018 - Elsevier
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 …

Partial skull of Late Cretaceous durophagous shark, Ptychodus occidentalis (Elasmobranchii: Ptychodontidae), from Nebraska, USA

K Shimada, CK Rigsby, SH Kim - Journal of Vertebrate …, 2009 - Taylor & Francis
ABSTRACT Ptychodus (Elasmobranchii: Ptychodontidae) is an enigmatic durophagous
shark known from Cretaceous marine deposits nearly worldwide based primarily on isolated …

Systematics, palaeoecology and palaeobiogeography of the Neogene fossil sharks from the Azores (Northeast Atlantic)

SP Ávila, R Ramalho, R Vullo - Annales de Paléontologie, 2012 - Elsevier
The Azores Archipelago is a group of isolated islands located in the North Atlantic Ocean.
One of these oceanic islands–Santa Maria–exhibits marine fossiliferous sediments of late …

[PDF][PDF] An associated dentition and calcified vertebral centra of the Late Cretaceous elasmobranch, Ptychodus anonymus Williston 1900

MJ Everhart, T Caggiano - Paludicola, 2004 - researchgate.net
The associated remains of a ptychodontid shark, Ptychodus anonymus Williston 1900, were
recovered by the authors from the Smoky Hill Chalk Member (Late Cretaceous; late …

Hybodontiform shark remains (Chondrichthyes, Elasmobranchii) from the Lower Triassic of Yunnan Province, China, with comments on hybodontiform diversity across …

W Wen, J Kriwet, Q Zhang, MJ Benton… - Journal of Vertebrate …, 2022 - Taylor & Francis
Hybodontiform shark teeth, cephalic and fin spines as well as placoid scales are reported
here for the first time from the continental, Lower Triassic Dongchuan Formation near the …

A partial braincase and other skeletal remains of Oligocene angel sharks (Chondrichthyes, Squatiniformes) from northwest Belgium, with comments on squatinoid …

FH Mollen, BWM van Bakel, JWM Jagt - Contributions to Zoology, 2016 - brill.com
A detailed redescription of a chondrocranium from the basal Boom Clay Formation
(Rupelian, Upper Oligocene) at the SVK clay pit, Sint-Niklaas (province of Oost-Vlaanderen …