Pennsylvanian nuculoids (Bivalvia) from the Ixtaltepec Formation, Oaxaca, Mexico

Barroso, Sara A. Quiroz; Perrilliat, María del Carmen

doi:10.1017/s0022336000039421

Cited by 17 publications

(23 citation statements)

References 8 publications

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“…The finding of index brachiopods from the Mississippian in the Santiago Formation and at the base of the Ixtaltepec Formation has allowed to date the strata as Tournaisian-Serpukhovian, confirming the age of the bearing rocks. In the same way, numerous brachiopods have been related with those recorded in different localities from the Mid-Continent in the United States, suggesting that during the Carboniferous there was a marine connection that related both regions (Quiroz-Barroso & Perrilliat, 1997;Torres-Martínez & Sour-Tovar, 2012, 2016aVillanuevaOlea & Sour-Tovar, 2015). Nonetheless, this relation is not clear for the Mississippian due to the regionalization of North American taxa, which presumably occurred until the Pennsylvanian (Pérez-Huerta, 2007;Qiao & Shen, 2014).…”

Section: Introductionmentioning

confidence: 74%

“…Herein highlight the presence of diverse brachiopods (Torres-Martínez & SourTovar, 2012, 2016a, bivalves (Quiroz-Barroso & Perrilliat, 1997, 1998, crinoids (Villanueva-Olea & Sour-Tovar, 2015), and other groups of invertebrates, which were associated in a peri-reef community. In this level, the occurrence of the brachiopods Orbiculoidea caneyana Antiquatonia sp.…”

Section: Discussionmentioning

confidence: 99%

“…Quiroz-Barroso & Perrilliat, 1997, 1998Sour-Tovar et al, 1996;Navarro-Santillán et al, 2002;Torres-Martínez & Sour-Tovar, 2016b). However, some recent works have also proved that this similarity decreases with the age of the faunas.…”

Section: Paleobiogeographical Considerationsmentioning

confidence: 99%

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Carboniferous brachiopods (Productida and Orthotetida) from Santiago Ixtaltepec, Oaxaca, Southern Mexico

Torres-Martínez¹,

Sour-Tovar²,

González-Mora³

et al. 2018

Rev. bras. paleontol.

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-Ten species of Carboniferous brachiopods of the orders Productida and Orthotetida are described. The material occurs in Santiago Ixtaltepec, considered as one of the most important regions where Paleozoic rocks of Mexico are exposed. Ozora sp., Tolmatchoffia keokuk and Marginatia sp. were found in rocks from the Santiago Formation (APS-1), meanwhile the other taxa were collected in different strata from the Ixtaltepec Formation (API-2, API-5, API-6 and API-7). The record of the genera Ozora and Marginatia and the species Tolmatchoffia keokuk corroborate the Tournaisian-Visean age for the Lower Member of the Santiago Formation. The presence of Productus concinnus at API-2 level of the Ixtaltepec Formation places it in at least Visean age. Antiquatonia sp., Orthotetes mixteca, Derbyia sp. and ?Schuchertella sp. were found in previously dated Pennsylvanian strata . The fossil associations and the lithology allowed to relate each level where brachiopods were found with an intertidal, subtidal or peri-reef paleoenvironment. The presence of typical taxa from the Tournaisian of the Mid-Continent (United States) in the Santiago Ixtaltepec region suggests that there was a marine connection that joined both areas at least since the Early Mississippian. The occurrence of Productus concinnus in the Ixtaltepec Formation (API-2) confirms that Europe and Santiago Ixtaltepec region were linked during the Middle Mississippian. Antiquatonia, Orthotetes, Derbyia and Schuchertella are considered as cosmopolite genera whose presence in localities from the Mid-Continent is very common. Keywords

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Section: Introductionmentioning

confidence: 74%

Section: Discussionmentioning

confidence: 99%

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Carboniferous brachiopods (Productida and Orthotetida) from Santiago Ixtaltepec, Oaxaca, Southern Mexico

Torres-Martínez¹,

Sour-Tovar²,

González-Mora³

et al. 2018

Rev. bras. paleontol.

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“…Desde su descubrimiento en 1968 y posterior descripción (Pantoja-Alor, 1970), se han realizado estudios de los fósiles contenidos en ellas (Sour-Tovar y Quiroz-Barroso, 1991; Quiroz-Barroso y Perrilliat, 1997Perrilliat, , 1998Quiroz-Barroso et al, 2000;Navarro-Santillán et al, 2002;Landing et al, 2010;Streng et al, 2011, entre otros).…”

unclassified

“…Las rocas del Carbonífero están representadas por las formaciones Santiago (unidad informal por homonimia) e Ixtaltepec, que previamente fueron asignadas al Misisípico temprano (Osageano) y Pensilvánico temprano-medio (Morrowano-Desmoinesiano), respectivamente (PantojaAlor, 1970; Quiroz-Barroso y Perrilliat, 1997Perrilliat, , 1998. Ambas unidades son portadoras de abundantes restos de esponjas, conuláridos, corales tabulados, briozoarios, braquiópodos,…”

unclassified

Placas columnares de crinoides del Carbonífero de la región de Santiago Ixtaltepec, Municipio de Nochixtlán, Oaxaca; consideraciones estratigráficas y paleobiogeográficas

Villanueva-Olea¹,

Castillo-Espinoza²,

Sour-Tovar³

et al. 2011

BSGM

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ResumenSe reportan y describen once morfotipos de placas columnares de crinoides de edad misisípica y pensilvánica que han sido encontradas en diferentes niveles estratigráficos de las formaciones carboníferas Santiago (unidad informal) e Ixtaltepec, en sus afloramientos de la región de Santiago Ixtaltepec, Municipio de Nochixtlán, Oaxaca. Se propone a Axilinucrinus angustus como nuevo morfogénero y nueva morfoespecie. Cyclocaudex insaturatus y Floricyclus welleri se han encontrado en niveles del Misisípico medio (MeramecianoChesteriano?) del miembro superior de la formación Santiago. Lomalegnum cf. L. hormidium, Axilinucrinus angustus y un género indeterminado se presentan en niveles estratigráficos del Misisípico medio-tardío (Merameciano-Chesteriano) de la Formación Ixtaltepec. Pentagonomischus cf. P. plebeius y Cyclocion distinctus se encuentran en niveles del Pensilvánico temprano-medio (MorrowanoDesmoinesiano) de la Formación Ixtaltepec. Cylindrocauliscus fiski y Cyclocaudex typicus son morfotipos con una distribución muy amplia en la sección carbonífera de Nochixtlán. Existe una fuerte similitud entre todos los parataxa de Oaxaca con aquellos reportados del Misisípico inferior-Pensilvánico medio de la región del Mid-Continent en el centro-este de los Estados Unidos.Palabras clave: Placas de crinoides, parataxonomía, Misisípico, Pensilvánico, Oaxaca, México. Abstract Eleven crinoid columnal morphotypes of Mississippian and Pennsylvanian ages found in different stratigraphic levels of the Santiago (informal unit) and Ixtaltepec formations in outcrops in the Santiago

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Fossil record of Upper Paleozoic Marine Invertebrates from Mexico

Quiroz-Barroso

Sour-Tovar

Topics in Geobiology

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Pennsylvanian nuculoids (Bivalvia) from the Ixtaltepec Formation, Oaxaca, Mexico

Cited by 17 publications

References 8 publications

Carboniferous brachiopods (Productida and Orthotetida) from Santiago Ixtaltepec, Oaxaca, Southern Mexico

Carboniferous brachiopods (Productida and Orthotetida) from Santiago Ixtaltepec, Oaxaca, Southern Mexico

Placas columnares de crinoides del Carbonífero de la región de Santiago Ixtaltepec, Municipio de Nochixtlán, Oaxaca; consideraciones estratigráficas y paleobiogeográficas

Fossil record of Upper Paleozoic Marine Invertebrates from Mexico

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