Natural History Sciences, 2023 A remarkable, complete specimen of a squalorajid holocephalian is described for the first time from the Lower Jurassic (lower Sinemurian) rocks of Osteno (Como, NW Italy).
Christopher J. Duffin +2 more
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The southernmost range limit for the hidden angelshark Squatina occulta [PDF]
, 2016 Background: Angelsharks (Genus Squatina) are distributed in the southern Southwest Atlantic Ocean between southeastern Brazil and central Patagonia. The endangered hidden angelshark Squatina occulta is reported in the literature as ranging from Espírito ...
Chiaramonte, Gustavo Enrique +4 more
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Biodiversitas Journal of Biological Diversity, 1970 Sutarno, Setyawan AD, Suyatna I. 2012. Species diversity of critically endangered pristid sawfishes (Elasmobranchii: Pristidae) Elasmobranchii: Pristidae (Malay Archipelago). Biodiversitas 13: 161-171. The pristid sawfishes (Pristidae) are notable because of their sawlike rostrum and large body size (up to seven meters).
SUTARNO SUTARNO +2 more
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Shark and ray teeth from the Hauterivian (Lower Cretaceous) of north-east England [PDF]
, 1999 Sampling of hiatal horizons within the Hauterivian part of the Speeton Clay Formation of north-east England has produced teeth of several species of sharks and rays, four of which are previously unnamed.
Mitchell, S.F. +2 more
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The mitogenomic phylogeny of the Elasmobranchii (Chondrichthyes)
Mitochondrial DNA Part A, 2017 Here we present a mitogenomic perspective on the evolution of sharks and rays, being a first glance on the complete mitochondrial history of such an old and diversified group of vertebrates. The Elasmobranchii is a diverse subclass of Chondrichthyes, or cartilaginous fish, with about 1200 species of ocean- and freshwater-dwelling fishes spread all over
Amaral, Cesar R. L. +4 more
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Frontiers in Neuroscience, 2018 The neuropeptide gonadotropin-releasing hormone (GnRH) plays an important role in the control of reproductive functions. Vertebrates possess multiple GnRH forms that are classified into three main groups, namely GnRH1, GnRH2, and GnRH3.
Anne-Laure Gaillard +9 more
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A new species of Dermopristis Kearn, Whittington & Evans-Gowing, 2010 (Monogenea: Microbothriidae), with observations on associations between the gut diverticula and reproductive system and on the presence of denticles in the nasal fossae of the host Glaucostegus typus (Bennett) (Elasmobranchii: Rhinobatidae) [PDF]
, 2011 Dermopristis cairae n. sp. (Microbothriidae) is described from the skin and possibly from the nasal fossae of the giant shovelnosed ray Glaucostegus typus (Bennett). The new species is distinguished from D.
EM Perkins +14 more
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Mineralization of the Callorhinchus Vertebral Column (Holocephali; Chondrichthyes)
Frontiers in Genetics, 2020 Members of the Chondrichthyes (Elasmobranchii and Holocephali) are distinguished by their largely cartilaginous endoskeletons, which comprise an uncalcified core overlain by a mineralized layer; in the Elasmobranchii (sharks, skates, rays) most of this ...
Jacob B. Pears +4 more
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Diversification of the Neoselachii (Chondrichthyes) during the Jurassic and Cretaceous [PDF]
, 2006 The Neoselachii are a monophyletic group including all of the extant sharks and rays. They underwent rapid diversification throughout the Jurassic and Cretaceous, going from low-diversity assemblages of members of extinct orders in the Late Triassic to ...
Underwood, Charlie J.
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A record of the Porbeagle, Lamna nasus, in coastal waters of Buenos Aires (Argentina) confirmed by DNA barcoding [PDF]
, 2015 A record of a juvenile Porbeagle, Lamna nasus, in the coastal waters of Argentina is confirmed by DNA barcoding, since the specimen lacked some external diagnostic features.
Díaz de Astarloa, Juan Martín +2 more
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