New Brachiopod records and considerations on the Tivertonia-Streptorhynchus (Moscovian) and Costatumulus amosi (Sakmarian–Artinskian) Faunas from Western Argentina: The Key Sections at Quebrada agua del Jaguel and Quebrada Santa Elena Revisited



Document title: New Brachiopod records and considerations on the Tivertonia-Streptorhynchus (Moscovian) and Costatumulus amosi (Sakmarian–Artinskian) Faunas from Western Argentina: The Key Sections at Quebrada agua del Jaguel and Quebrada Santa Elena Revisited
Journal: Ameghiniana
Database: PERIÓDICA
System number: 000376493
ISSN: 0002-7014
Authors: 1
Institutions: 1Universidad Nacional de la Patagonia San Juan Bosco, Laboratorio de Investigaciones en Evolución y Biodiversidad, Comodoro Rivadavia, Chubut. Argentina
Year:
Season: Jun
Volumen: 51
Number: 3
Pages: 226-242
Country: Argentina
Language: Inglés
Document type: Artículo
Approach: Analítico, descriptivo
English abstract The brachiopod Coolkilella aredesi sp. nov. and Calytrixia piersoni sp. nov. are proposed on the basis of specimens from the Del Salto, Río del Peñón and Agua del Jagüel formations. Their biostratigraphic implications are discussed together with new records of Septosyringothyris (Precosyringothyris) jaguelensis Lech and Streptorhynchus inaequiornatus Leanza at the top of the latter unit. The stratigraphic record, paleontological content and age of both the Tivertonia-Streptorhynchus assemblage (Moscovian) and the younger Costatumulus amosi fauna (Sakmarian–Artinskian) were reviewed and assessed based on outcrops at Quebrada Agua del Jagüel and Quebrada Santa Elena. Faunal content confirms the most recent stratigraphic, biostratigraphic and paleoclimatic frameworks. These a diachronic nature of the Agua del Jagüel and Cordón del Jagüel formations, supporting the absence of an early Permian glacial event in western Argentina
Disciplines: Biología,
Geociencias
Keyword: Invertebrados,
Paleontología,
Geología,
Paleozoico tardío,
Argentina,
Bioestratigrafía,
Nuevos registros,
Coolkilella aredesi,
Calytrixia piersoni,
Coolkilella,
Calytrixia,
Septosyringothyris
Keyword: Biology,
Earth sciences,
Invertebrates,
Paleontology,
Geology,
Late Paleozoic,
Argentina,
Biostratigraphy,
New records,
Coolkilella aredesi,
Calytrixia piersoni,
Coolkilella,
Calitrixia,
Septosyringothyris
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