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A new lithographic limestone deposit in the Upper Cretaceous Austin Group at El Rosario, county of Múzquiz, Coahuila, northeastern Mexico
At El Rosario, 170 km WNW of Muzquiz in northern Coahuila, Mexico, alternating evenly layered platy limestone and fi ssile marly limestone of late Turonian-early Coniacian age (Late Cretaceous)Expand
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Maastrichtian cephalopods from Cerralvo, north‐eastern Mexico
Sediments of the Mendez Formation near Cerralvo, north-eastern Mexico, yield an abundant and diverse Maastrichtian ammonite assemblage. A total of 23 species referred to 18 genera are described, inExpand
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Longibelus gen. nov., a new Cretaceous coleoid genus linking Belemnoidea and early Decabrachia
The phylogenetic origin and the timing of orig- ination of the Decabrachia are controversial. This is due to a poor understanding of character complexes relating to the shell, which causesExpand
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Epizoic Stramentid Cirripedes on Ammonites from Late Cretaceous Platy Limestones in Mexico
Abstract The discovery of platy limestone deposits in northeastern Mexico has led to the collection of well-preserved stramentids of early Turonian age from Vallecillo, state of Nuevo León, and ofExpand
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Systematic palaeontology of the Perisphinctoidea in the Jurassic/Cretaceous boundary interval at Le Chouet (Drôme, France), and its implications for biostratigraphy
This study describes ammonite taxa of the Perisphinctoidea in the Jurassic/Cretaceous boundary interval at Le Chouet (Drome, France). Emphasis is placed on new and poorly known Himalayitidae,Expand
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The Fossil Lagerstätte at Vallecillo, North-Eastern Mexico: Pelagic Plattenkalks related to Cenomanian-Turonian Boundary Anoxia
The early Turonian Vallecillo Plattenkalk, famous for its fossil fishes, is interpreted regarding petrography, sedimentology, geochemistry, invertebrate taxonomy, biostratigraphy, palaeobiogeography,Expand
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Annotated catalogue of marine squamates (Reptilia) from the Upper Cretaceous of northeastern Mexico
Recent work in the Upper Cretaceous of northeastern Mexico has produced a diversity of vertebrate remains. For specimens referable to Squamata, both old and new, an annotated catalogue is hereExpand
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Hemipelagic cephalopods from the Maastrichtian (late Cretaceous) Parras Basin at La Parra, Coahuila, Mexico, and their implications for the correlation of the lower Difunta Group
Few biostratigraphic data exist from the Parras and La Popa basins, mainly due to the absence of index fossils. This paper describes 19 ammonoid species from 15 genera and 1 nautilid from La Parra,Expand
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Fluctuations of the oxygen minimum zone at the end of Oceanic Anoxic Event 2 reflected by benthic and planktic fossils
The latest Cenomanian to early Turonian (Late Cretaceous) section at Vallecillo, Mexico, contains a continuous and highly fossiliferous sedimentary record across the late Oceanic Anoxic Event (OAE)Expand
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Paleobiogeography of Late Cretaceous Ammonoids
Ammonoids were dominant elements of marine Cretaceous faunas. Their fossils are important biostratigraphic indicators, in some cases with worldwide distribution. Their paleobiogeographicExpand
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