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1 May 2005 LOWER MISSISSIPPIAN (OSAGEAN) SPIRE-BEARING BRACHIOPODS FROM CAÑÓN DE LA PEREGRINA, NORTH OF CIUDAD VICTORIA, TAMAULIPAS, NORTHEASTERN MÉXICO
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Abstract

Brachiopods are common in the lower and middle parts of the early Mississippian (Osagean) Vicente Guerrero Formation that is mainly a fine-grained quartz arenite found in the Ciudad Victoria area, Tamaulipas, northeastern México. This shallow marine brachiopod fauna includes several spire-bearers: Lamellosathyris lamellosa, Cleiothyridina cf. tenuilineata, Camarophorella sp., Alispirifer tamaulipensis n. sp., Tylothyris? sp., Torynifer pseudolineatus, Syringothyris cf. typa, Syringothyris? sp., and Punctospirifer sp. Similar assemblages have been found in Osagean rocks of the Santiago Formation, Oaxaca, southeastern México, and in several coeval formations in the USA: Arizona, Arkansas, Illinois, Ohio, and Texas. North American biogeographic affinities are suggested for these Mississippian faunas of northeastern México. These contrast markedly with the Late Silurian situation, where the Tamaulipas material has Old World Realm, rather than North American, biogeographic affinities. This supports the interpretation that northeastern México was an integral part of North America by the Mississippian, but not in the Late Silurian.

FRANCISCO SOUR-TOVAR, FERNANDO ÁLVAREZ, and MARÍA LUISA MARTÍNEZ CHACÓN "LOWER MISSISSIPPIAN (OSAGEAN) SPIRE-BEARING BRACHIOPODS FROM CAÑÓN DE LA PEREGRINA, NORTH OF CIUDAD VICTORIA, TAMAULIPAS, NORTHEASTERN MÉXICO," Journal of Paleontology 79(3), 469-485, (1 May 2005). https://doi.org/10.1666/0022-3360(2005)079<0469:LMOSBF>2.0.CO;2
Accepted: 1 May 2004; Published: 1 May 2005