info:eu-repo/semantics/article
Middle Ordovician linguliformean microbrachiopods from western Argentina: new data and biogeographic implications
Fecha
2021-04Registro en:
Lavié, Fernando Julián; Mestre, Ana Paula; Carrera, Marcelo Gabriel; Middle Ordovician linguliformean microbrachiopods from western Argentina: new data and biogeographic implications; Paleontological Society; Journal of Paleontology; 95; 4; 4-2021; 720-732
0022-3360
1937-2337
CONICET Digital
CONICET
Autor
Lavié, Fernando Julián
Mestre, Ana Paula
Carrera, Marcelo Gabriel
Resumen
New linguliform microbrachiopods from the Middle Ordovician are described and illustrated. This fauna was recovered from the uppermost beds of the San Juan Formation in two sections of the Central Precordillera (Argentina), which are accurately dated to the Lenodus pseudoplanus Zone (middle Darriwilian). The fauna consists of the obolid Luthieria diminuta n. gen. n. sp., and the acrotretids Eoconulus tucunucoensis n. sp., Conotreta andina Lavié, Serra, and Feltes, Scaphelasma zharykensis Popov, and Numericoma rowelli Holmer et al. This low-diversity lingulate association displays close similarities with coeval faunas that inhabited the Laurentia, Baltica, and Kazakhstanian regions, in agreement with evidence from other linguliform and rhynchonelliform brachiopods.