Results 31 to 40 of about 6,594 (225)

Comparative morphology of labial cartilages in sharks (Chondrichthyes, Elasmobranchii) [PDF]

The European Zoological Journal, 2020
During the last years, feeding mechanisms of sharks have been documented mainly based on their stomach contents supplemented by video footages of feeding behaviours in some species. Rare kinematic analyses of shark jaws contributed additionally to our knowledge. However, not all structures important to prey capture in sharks have been investigated yet.
Klimpfinger, C., Kriwet, J.
openaire   +2 more sources

Barremian and Aptian (Cretaceous) sharks and rays from Speeton, Yorkshire, north-east England [PDF]

, 2004
Bulk sampling of a number of horizons within the upper part of the Speeton Clay Type section has produced teeth and other remains of sharks and rays from several poorly studied horizons.
Applegate, Ayres, Batchelor, Berg, Biddle, Biddle, Bonaparte, C. J. Underwood, Cappetta, Cappetta, Cappetta, Cappetta, Casier, Compagno, de Blainvile, Duffin, Gill, Glickman, Herman, Herman, Kriwet, Müller, Pictet, Regan, Schmitz, Siverson, Siverson, Stinton, Thies, Thies, Thiolliere, Underwood, Underwood, Ward, Woodward   +34 more
core   +1 more source

Beneath the surface: DNA barcoding of shark fins in Singapore

Royal Society Open Science
The global decline of shark populations, largely driven by overfishing to supply the shark fin trade, poses a significant threat to marine ecosystems. Southeast Asia, and particularly Singapore, is a key hub for the transit and trade of shark fins that ...
Manisha Saigal, Hannah Ng Shueh Yi, Nageen Ayesha Rameez, Siebe van Manen, Bui Tr Van Anh, Vidhi P. Arora, Kai Ding Max Han, Jenelle Qian Tong Lee, Adlan Syaddad, Claudia Kexin Tan, Elisa X. Y. Lim, Benjamin J. Wainwright   +11 more
doaj   +1 more source

Fish remains from Miocene beds of Višnja vas near Vojnik, Slovenia

Geologija, 2013
This paper discusses fossil teeth of sharks (Elasmobranchii, Neoselachii) and porgies (Teleostei, Sparidae) fromthe Miocene glauconite sandstones of Vi{nja vas near Vojnik.
Aleš Šoster, Vasja MIkuž
doaj   +1 more source

Review of the dental pattern in the squalomorph shark Protospinax annectans , and a description of two new Jurassic shark genera

Acta Palaeontologica Polonica
The extinct elasmobranch Protospinax is an intriguing shark known mostly from isolated teeth and rare complete skeletons. Most previous studies focused on differences in isolated teeth for taxonomic assignments, with little to no considerations of dental
Arnaud Begat, Eduardo Villalobos-Segura, Patrick L. Jambura, Manuel A. Staggl, Stefanie Klug, Jürgen Kriwet   +5 more
doaj   +1 more source

Diving behaviour of the critically endangered tope shark Galeorhinus galeus in the Natural Reserve of Bahia San Blas, northern Patagonia [PDF]

, 2014
Background:Tope sharks (Galeorhinus galeus) aggregate in large numbers during spring and summer in closedgulfs and bays in northern Patagonia; these locations are considered the main nursery areas for the species.However, little is known about the ...
Cuevas, Juan Martín, Di Giacomo, Edgardo Ernesto, Garcia, Mirta Lidia   +2 more
core   +2 more sources

First record of Multicalyx cristata (Aspidocotylea) in Sphyrna lewini (Elasmobranchii) in the southern Gulf of Mexico

Revista Mexicana de Biodiversidad, 2017
Three individuals of Multicalyx cristata (Aspidocotylea) were identified in the gallbladder of a hammerhead shark, Sphyrna lewini (Elasmobranchii), in Playa Chachalacas, Veracruz, Mexico. This report makes a significant contribution to our understanding
Oscar Méndez, Víctor M. Vidal-Martínez   +1 more
doaj   +1 more source

Food and feeding habits of the blackspotted smooth-hound, Mustelus punctulatus (Elasmobranchii: Carcharhiniformes: Triakidae), from the northern Adriatic [PDF]

Acta Ichthyologica et Piscatoria, 2011
Background. The blackspotted smooth-hound, Mustelus punctulatus Risso, 1826, has been regularly caught in the northern Adriatic Sea, although a decreasing trend in its catches was observed off the coast of Slovenia within the last decade The knowledge of
L. Lipej, B. Mavriń, S. Rešek, M. Chérif, C. Capapé   +4 more
doaj   +3 more sources

A new species of Lonchidiidae (Hybodontiformes) from the Late Jurassic of Brazil (Aliança Formation, Jatobá Basin)

The Anatomical Record, EarlyView.
Abstract The Aliança Formation (Jatobá Basin) represents lacustrine deposits formed in oxygenated waters that hosted a diverse fauna, including Hybodontiform sharks. Within this group, the Family Lonchidiidae comprises 11 valid genera, with Parvodus previously reported in Brazilian deposits from the Brejo Santo Formation (Araripe Basin, Late Jurassic ...
Larissa de Souza Ribeiro, Marco Aurélio Gallo de França   +1 more
wiley   +1 more source

Selachian faunas from the earliest Cretaceous Purbeck Group of Dorset, southern England. [PDF]

, 2002
Abundant selachian remains have been recovered from a number of horizons through the Purbeck Group at Durlston Bay, Lulworth Cove and Stair Hole in southern England.
Rees, J., Underwood, Charlie J.
core