Integrated microfossil biostratigraphy,Mid-Cretaceous (Albian to Saronian)
نویسندگان
چکیده
منابع مشابه
New Mid-Cretaceous (Latest Albian) Dinosaurs from Winton, Queensland, Australia
BACKGROUND Australia's dinosaurian fossil record is exceptionally poor compared to that of other similar-sized continents. Most taxa are known from fragmentary isolated remains with uncertain taxonomic and phylogenetic placement. A better understanding of the Australian dinosaurian record is crucial to understanding the global palaeobiogeography of dinosaurian groups, including groups previousl...
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Mammals of metatherian-eutherian grade are represented in a collection recovered from a Wise County, Texas, locality of Lower Cretaceous (Albian) age. The form, or forms, are distinctly primitive as evidenced by the very small low protocones, large stylar cusps, and wide stylar shelf. The presence of well-developed and separate metacones at such an early date would seem to place Deltatheridium ...
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The “Baja BC hypothesis”, which postulates that western Washington State, British Columbia and southern Alaska originated at the latitude ofMexico, has pitted paleomagnetic results against long-held interpretations about the tectonic evolution of western North America. In this paper we develop a new paleobotanical method for estimating paleolatitude and apply it to this problem. We start by sho...
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A new diogenid paguroid, Paguristes liwinskii sp. nov., is described from upper Albian phosphorite-bearing deposits near Annopol, along the east bank of the River Vistula (Wisła), east-central Poland. This new species constitutes an additional example of Early-Mid-Cretaceous macrofaunal shift, from marine reefal limestone to siliciclastic facies, triggered by the worldwide radiation of plankton...
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Quantitative estimates of increased heat transfer by atmospheric H2O vapor during the Albian greenhouse warming suggest that the intensified hydrologic cycle played a greater role in warming high latitudes than at present and thus represents a viable alternative to oceanic heat transport. Sphaerosiderite d18O values in paleosols of the North American Cretaceous Western Interior Basin are a prox...
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ژورنال
عنوان ژورنال: Cretaceous Research
سال: 1984
ISSN: 0195-6671
DOI: 10.1016/s0195-6671(84)80014-2