{"title":"Cretaceous-Eocene crocodilians from the San Juan Basin, New Mexico","authors":"S. Lucas","doi":"10.56577/ffc-43.257","DOIUrl":null,"url":null,"abstract":"-Crocodilian fossils from the Fruitland, Kirtland, Nacimiento and San Jose Formations in the San Juan Basin (Upper Cretaceous-lower Eocene) represent the genera Akanthosuchus (Nacimiento Formation), Allognathosuchus (Nacimiento and San Jose Formations), Brachychampsa (Fruitland and Kirtland Formations), Diplocynodon (Nacimiento Formation), Goniopholis (Fruitland and Kirtland Formations), Leid_vosuchus (Fruit land. Kirtland, Nacimiento and San Jose Formations) and Thoracosaurus 9 (Fruitland Formation). The San Juan Basin taxa document some evolutionary turnover in crocodilians at the Cretaceous-Tertiary boundary and suggest that the feeding ecology of extant crocodilians was present among the Late Cretaceous-early Eocene crocodilians.","PeriodicalId":325871,"journal":{"name":"San Juan Basin IV","volume":"16 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"13","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"San Juan Basin IV","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.56577/ffc-43.257","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 13
Abstract
-Crocodilian fossils from the Fruitland, Kirtland, Nacimiento and San Jose Formations in the San Juan Basin (Upper Cretaceous-lower Eocene) represent the genera Akanthosuchus (Nacimiento Formation), Allognathosuchus (Nacimiento and San Jose Formations), Brachychampsa (Fruitland and Kirtland Formations), Diplocynodon (Nacimiento Formation), Goniopholis (Fruitland and Kirtland Formations), Leid_vosuchus (Fruit land. Kirtland, Nacimiento and San Jose Formations) and Thoracosaurus 9 (Fruitland Formation). The San Juan Basin taxa document some evolutionary turnover in crocodilians at the Cretaceous-Tertiary boundary and suggest that the feeding ecology of extant crocodilians was present among the Late Cretaceous-early Eocene crocodilians.
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