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Factors controlling upper Jurassic ammonite assemblages in north central Mexico

Oloriz, F; Villasenor, AB; González-Arreola, C (1997)

Lower Kimmeridgian to Lower Tithonian (Upper Jurassic) sections studied at Sierra de Palotes (Durango) and Sierra de Catorce (San Luis Potosi), Mexico, show low-energ deposits in which the composition of fossil macroinvertebrate ...
First record of the genus Simocosmoceras Spath, 1925, Ammonitina, in Mexico. Biostratigraphic and palaeobiogeographic interpretation

Villasenor, AB; Oloriz, F; González-Arreola, C (2003)

The occurrence of Simocosmoceras in Mexico is first reported from the Mazatepec area (Puebla) in East-central Mexico. Simocosmoceras pszczolkowskii apulcoensis n. subsp. shows closest morphological, resemblance with ...
Geographic control on phenotype expression. The case of Hybonoticeras mundulum (Oppel) from the Mexican Altiplano

Oloriz, F; Villasenor, AB; González-Arreola, C (2000)

Hybonoticeras mundulum (Oppel) (m) s.s. is reported from the Mexican Altiplano on the basis of material collected bed-by-bed in sections in the States of Durango and Zacatecas. The known range of this species in the Mexican ...
Inner whorls of Gregoryceras (Ammonitina, Peltoceratinae) as the first occurrence of the genus in Mexico

Villasenor, AB; Oloriz, F; López-Palomino, I (2004)

Two nuclei of Gregoryceras are described as the first record of the genus in Mexico. The occurrence in Mexico of the ubiquitous Tethyan genus Gregoryceras is interpreted as related to a major flooding episode that affected ...
Major lithostratigraphic units in land-outcrops of north-central Mexico and the subsurface along the northern rim of Gulf of Mexico Basin (Upper Jurassic-lowermost Cretaceous): a proposal for correlation of tectono-eustatic sequences

Oloriz, F; Villasenor, AB; González-Arreola, C (2003)

The stratigraphic and geodynamic interpretation of Upper Jurassic lithostratigraphic units is revised in north-central Mexico and the northern rim of the Gulf of Mexico Basin through updated ammonite and calpionellid ...
Re-evaluation of Procraspedites SPATH, 1930 (Ammonitina) from the Upper Kimmeridgian of Mexico

Oloriz, F; Villasenor, B; González-Arreola, C (1998)

Procraspedites from the Mexican Altiplano, studied with precise stratigraphic control, are coeval with the horizons rich in Glockiceras (Coryceras) carinatum [Del Castillo and Aguilera, 1895]. The interval with Procraspedites ...

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