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Lingulate brachiopods from the Lampazar Formation (Late Cambrian) of the Cordillera Oriental of northwestern Argentina

Michal Mergl, Zarela Herrera, Enrique Villas and Gladys Ortega
Lingulate brachiopods from the Lampazar Formation (Late Cambrian) of the Cordillera Oriental of northwestern Argentina
Journal of Paleontology (July 2015) 89 (4): 537-552

Abstract

The Angosto de Lampazar, a classic locality for the study of lower Paleozoic successions in the Cordillera Oriental, NW Argentina, has yielded a late Cambrian relatively diverse, lingulate brachiopod fauna. Sandy lenses with calcareous cement from the uppermost levels of the Lampazar Formation have yielded abundant remains of articulate and phosphatic brachiopods. Among the latter, the new species Eurytreta harringtoni Mergl and Herrera, Lingulella? melonica Mergl and Herrera, Libecoviella lenticularis Mergl and Herrera, and Schizambon cardonalis Mergl and Herrera, as well as the new genus and species Saltaia lampazarensis Mergl and Herrera are formally introduced. Trilobites and conodonts from the same horizons characterize the Cordylodus proavus Zone, allowing a correlation with Stage 10 of the Furongian Series. Although the information on lingulate brachiopods from the C. proavus Zone is scarce across the world, the composition of the studied association displays a relationship with coeval and slightly younger faunas of Utah and Kazakhstan. The Argentine brachiopods, the first described from the late Cambrian Proto-Andean margin of Gondwana, are more closely related to temperate Laurentian faunas than to those from the high latitude North African margin of Gondwana.


ISSN: 0022-3360
EISSN: 1937-2337
Coden: JPALAZ
Serial Title: Journal of Paleontology
Serial Volume: 89
Serial Issue: 4
Title: Lingulate brachiopods from the Lampazar Formation (Late Cambrian) of the Cordillera Oriental of northwestern Argentina
Affiliation: University of West Bohemia in Plzen, Centre of Biology, Geosciences and Environmental Sciences, Plzen, Czech Republic
Pages: 537-552
Published: 201507
Text Language: English
Publisher: Paleontological Society, Lawrence, KS, United States
References: 90
Accession Number: 2016-025651
Categories: Invertebrate paleontology
Document Type: Serial
Bibliographic Level: Analytic
Annotation: IGCP Project No. 591
Illustration Description: illus. incl. strat. col., geol. sketch map
S24°34'60" - S24°34'60", W65°45'00" - W65°45'00"
Secondary Affiliation: Universidad de Zaragoza, ESP, SpainUniversidad Nacional de Cordoba, ARG, Argentina
Country of Publication: United States
Secondary Affiliation: GeoRef, Copyright 2017, American Geosciences Institute. Abstract, Copyright, The Paleontological Society. Reference includes data from GeoScienceWorld, Alexandria, VA, United States
Update Code: 201613
Program Name: IGCPInternational Geological Correlation Programme
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