New insights into Late Devonian vertebrates and associated fauna from the Cuche Formation (Floresta Massif, Colombia)
Por:
Olive, Sebastien, Pradel, Alan, Martinez-Perez, Carlos, Janvier, Philippe, Lamsdell, James C., Gueriau, Pierre, Rabet, Nicolas, Duranleau-Gagnon, Philippe, Cardenas-Rozo, Andres L., Zapata Ramirez, Paula A., Botella, Hector
Publicada:
1 ene 2019
Ahead of Print:
1 jul 2019
Categoría:
Paleontology
Resumen:
New vertebrate remains are reported from the Late Devonian (?Frasnian)
Cuche Formation of northeastern Colombia, including a new taxon of
antiarch placoderm (Colombialepis villarroeli, gen. et sp. nov.,
previously reported as Asterolepis) and a new taxon of arthrodiran
placoderm (Colombiaspis rinconensis, gen. et sp. nov.). We also report
evidence of a stegotrachelid actinopterygian, a diplacanthid acanthodian
(cf. Florestacanthus morenoi), a second antiarch placoderm (Bothriolepis
sp.), a putative megalichthyid, and a putative tristichopterid. The
absence of typical Euramerican markers, e.g., Asterolepis and
Strepsodus, in this assemblage suggests that faunal interchange between
Euramerica and Gondwana was less pronounced during the
Frasnian-Famennian than previously thought (i.e., the Great Devonian
Interchange hypothesis). Three arthropod taxa, including two families of
spinicaudatan branchiopods and the eurypterid Pterygotus cf. bolivianus,
are found to be associated with the reported vertebrate fauna.
Pterygotus cf. bolivianus represents the first eurypterid described from
Colombia and the youngest known pterygotid eurypterid, highlighting that
pterygotids, which were competitors for large predatory fishes, did not
go extinct during the major vertebrate radiation in the Early and Middle
Devonian.
Filiaciones:
Olive, Sebastien:
Royal Belgian Inst Nat Sci, Directorate Earth & Life Hist, Rue Vautier 29, B-1000 Brussels, Belgium
Pradel, Alan:
Sorbonne Univ, Ctr Rech Paleontol Paris, Museum Natl Hist Nat, CR2P,CNRS, CP 38,57 Rue Cuvier, F-75231 Paris 05, France
Martinez-Perez, Carlos:
Univ Valencia, Cavanilles Inst Biodivers & Evolutionary Biol, Paterna, Spain
Janvier, Philippe:
Sorbonne Univ, Ctr Rech Paleontol Paris, Museum Natl Hist Nat, CR2P,CNRS, CP 38,57 Rue Cuvier, F-75231 Paris 05, France
Lamsdell, James C.:
West Virginia Univ, Dept Geol & Geog, 98 Beechurst Ave,Brooks Hall, Morgantown, WV 26506 USA
Gueriau, Pierre:
Univ Lausanne, Inst Earth Sci, Anon Lab, Geopolis, CH-1015 Lausanne, Switzerland
Rabet, Nicolas:
Sorbonne Univ, Unite Biol Organismes & Ecosyst Aquat, BOREA,Univ Caen Normandie,Univ Antilles,CNRS,IRD, UMR 7208,Museum Natl Hist Nat,Univ Pierre & Marie, CP26,43 Rue Cuvier, F-75231 Paris 05, France
Duranleau-Gagnon, Philippe:
342 Rue Rouleau, Quebec City, PQ G5C 1T5, Canada
Cardenas-Rozo, Andres L.:
EAFIT Univ, Dept Earth Sci, Carrera 497 Sur 50, Medellin 19635, Colombia
Zapata Ramirez, Paula A.:
Univ Pontificia Bolivariana, Dept Mech Engn, Circular 1 70-01, Medellin, Colombia
Botella, Hector:
Univ Valencia, Cavanilles Inst Biodivers & Evolutionary Biol, Paterna, Spain
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