The Albian is both an age of the geologic timescale and a stage in the stratigraphic column . It is the youngest or uppermost subdivision of the Early/Lower Cretaceous Epoch / Series . Its approximate time range is 113.0 ± 1.0 Ma to 100.5 ± 0.9 Ma (million years ago). The Albian is preceded by the Aptian and followed by the Cenomanian .
4-615: The South Anuyi Ocean or Angayucham Ocean is a hypothesized ancient ocean, interpreted from the South Anuyi suture zone in eastern Siberia. Mapping of the northeastern continental shelf of Russia throughout the early 1980s culminated in a report on the "Geological Structure of the USSR: Seas of the Soviet Arctic." Most researchers interpreted the entire shelf as a single continental margin plate. In 1988 an alternate hypothesis interpreted
8-511: Is defined as the place where the foram species Rotalipora globotruncanoides first appears in the stratigraphic column. The Albian is sometimes subdivided in Early/Lower, Middle and Late/Upper subages or substages. In western Europe, especially in the United Kingdom , a subdivision in two substages ( Vraconian and Gaultian ) is more often used. Examples of Albian sedimentary rock are:
12-763: The Latin name for River Aube in France . A Global Boundary Stratotype Section and Point (GSSP), ratified by the IUGS in 2016, defines the base of the Albian as the first occurrence of the planktonic foraminiferan Microhedbergella renilaevis at the Col de Pré-Guittard section, Arnayon , Drôme, France. The top of the Albian Stage (the base of the Cenomanian Stage and Upper Cretaceous Series)
16-632: The rocks of the South Anuyi suture as the remnants of an ancient ocean basin. According to this model, Wrangel, De Long and the New Siberian Islands and the parts of the Chukchi microcontinent were part of a small continent, Arctica. They subsequently broke off and approached Siberia during the Albian . Albian The Albian Stage was first proposed in 1842 by Alcide d'Orbigny . It was named after Alba,
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