Ptychotrygon pustulata
Kriwet, Nunn & Klug, 2009
Classification: Elasmobranchii Rajiformes Ptychotrygonidae
Reference of the original description
Neoselachians (Chondrichthyes, Elasmobranchii) from the Lower and lower Upper Cretaceous of north-eastern Spain. Zoological Journal of the Linnean Society, 155(2), 316–347
Neoselachians (Chondrichthyes, Elasmobranchii) from the Lower and lower Upper Cretaceous of north-eastern Spain. Zoological Journal of the Linnean Society, 155(2), 316–347
Description:
Citation: Ptychotrygon pustulata Kriwet, Nunn & Klug, 2009: In: Database of fossil elasmobranch teeth www.shark-references.com, World Wide Web electronic publication, Version 09/2026
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Description
Original diagnosis after Kriwet, Nunn & Klug, 2009 [3290]: A species of Ptychotrygon characterized by the following dental features: teeth small; tooth crown massive and very convexly arched in labial and lingual views; central cusp not well differentiated and blunt with rounded cross-section; several short longitudinal labial ridges originating from crown base and a medio-labial ridge dividing above broad and rectangular apron; lingual face with well-marked central depression; root thin and not jutting out under the crown in occlusal view.
Original diagnosis after Kriwet, Nunn & Klug, 2009 [3290]: A species of Ptychotrygon characterized by the following dental features: teeth small; tooth crown massive and very convexly arched in labial and lingual views; central cusp not well differentiated and blunt with rounded cross-section; several short longitudinal labial ridges originating from crown base and a medio-labial ridge dividing above broad and rectangular apron; lingual face with well-marked central depression; root thin and not jutting out under the crown in occlusal view.
References
The first southern hemisphere occurrence of the extinct Cretaceous sclerorhynchoid sawfish Ptychotrygon (Chondrichthyes, Batoidea), with a review of Ptychotrygon taxonomy. Journal of Vertebrate Paleontology, 42(2), Article e2162411
DOI: 10.1080/02724634.2022.2162411
Neoselachians (Chondrichthyes, Elasmobranchii) from the Lower and lower Upper Cretaceous of north-eastern Spain. Zoological Journal of the Linnean Society, 155(2), 316–347
DOI: 10.1111/j.1096-3642.2008.00439.x
The first southern hemisphere occurrence of the extinct Cretaceous sclerorhynchoid sawfish Ptychotrygon (Chondrichthyes, Batoidea), with a review of Ptychotrygon taxonomy. Journal of Vertebrate Paleontology, 42(2), Article e2162411
DOI: 10.1080/02724634.2022.2162411
Neoselachians (Chondrichthyes, Elasmobranchii) from the Lower and lower Upper Cretaceous of north-eastern Spain. Zoological Journal of the Linnean Society, 155(2), 316–347
DOI: 10.1111/j.1096-3642.2008.00439.x
