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- Title
Devonian Vertebrates From Colombia.
- Authors
Janvier, P.; Villarroel, C.
- Abstract
Vertebrate remains are reported from the Emsian-Eifelian Floresta Formation and the Late Devonian (?Frasnian) Cuche Formation of north-eastern Colombia. The material from the Floresta Formation is associated with a marine invertebrate fauna and includes an arthrodire and probably a rhenanid. Several vertebrate-bearing localities are recorded from the Cuche Formation; vertebrates occur with plant remains and lingulid fragments. They include an acanthodian (<E1>Cheiracanthoides</E1>? sp.), a chondrichthyan (<E1>Antarctilamna</E1>? sp.), placoderms (<E1>Bothriolepis</E1>sp.,<E1>Asterolepis</E1>? sp. and an undetermined groenlandaspidid or primitive brachythoracid arthrodire), a stegotrachelid actinopterygianand three sarcopterygians (a cosmine-covered form tentatively referred to an osteolepidid, the porolepiform<E1>Holoptychius</E1>sp., and the rhizodontid<E1>Strepsodus</E1>? sp.). This assemblage suggests a Late Frasnian age and is surprisingly similar to Late Devonian vertebrate assemblages found in similar facies of Europe and North America, notwithstanding the presence of the Gondwanan chondrichthyan<E1>Antarctilamna</E1>?.<E5>key words:</E5>Vertebrata, Devonian, Colombia, South America, biostratigraphy, palaeobiogeography.
- Subjects
COLOMBIA; VERTEBRATES; GEOLOGICAL formations; GEOGRAPHY; PALEONTOLOGY
- Publication
Palaeontology, 2000, Vol 43, Issue 4, p729
- ISSN
0031-0239
- Publication type
Article
- DOI
10.1111/1475-4983.00147