A new hybodontiform shark ( Strophodus Agassiz 1838) from the Lower Cretaceous (Valanginian-Hauterivian) of Colombia

The vertebrate marine faunas that inhabited northern South America during the Cretaceous are still poorly known. This study is a contribution to a growing wave of new studies on Lower Cretaceous vertebrates from Colombia. Here we report and describe a new species of a hybodontiform shark of the genu...

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Published inPeerJ (San Francisco, CA) Vol. 10; p. e13496
Main Authors Carrillo-Briceño, Jorge D, Cadena, Edwin-Alberto
Format Journal Article
LanguageEnglish
Published United States PeerJ. Ltd 02.06.2022
PeerJ, Inc
PeerJ Inc
Subjects
Acrodontidae
Animals
Biodiversity
Coastal ecosystems
Colombia
Cretaceous
Durophagous
Ecosystem
Fishes
Fossils
Gondwana
Marine Biology
Museums
New species
Paleontology
Predators
Rosa Blanca Formation
Sediments
South America
Taxonomy
Teeth
Tooth
Zapatoca
Zoology
South America
Colombia
Brazil
United Kingdom
Thailand
France
Germany
India
Hungary
United Kingdom > UK
England
Switzerland
South America
Acrodontidae
Zapatoca
Durophagous
Rosa Blanca Formation
Gondwana
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Summary:The vertebrate marine faunas that inhabited northern South America during the Cretaceous are still poorly known. This study is a contribution to a growing wave of new studies on Lower Cretaceous vertebrates from Colombia. Here we report and describe a new species of a hybodontiform shark of the genus , which we named sp. nov., based on isolated teeth, that were collected in Valanginian-Hauterivian rocks of the Rosa Blanca Formation (Carrizal and El Sapo Members) near the town of Zapatoca, Santander Department, Andes of Colombia. In addition, we describe two other fragmented teeth assigned to sp. from the Rosa Blanca Fm. The new species from Colombia represents the only Cretaceous record of from Gondwana, offering new insights into the paleogeographic distribution of the genus, as well as increasing the knowledge about the scarce hybodontiform paleodiversity known from South America. The presence of in the Rosa Blanca Formation suggests that these durophagous (shell-crushing) fishes played an important role as predators of the abundant and diverse invertebrate fauna present in these ancient tropical coastal ecosystems of Gondwana.
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ISSN:2167-8359
2167-8359
DOI:10.7717/peerj.13496