In the geologic timescale, Berriasian is an age of the Lower Cretaceous epoch of the Cretaceousperiod of the Mesozoicera of the Phanerozoic eon. It spanned between 145.5 million and 140.2 million years ago. The Berriasian age succeeds the Tithonian age of the Upper Jurassic epoch of the Jurassic period of the same era and precedes the Valanginian age of the Lower Cretaceous epoch. The geologic time scale is used by geologists and other scientists to describe the timing and relationships between events that have occurred during the history of the Earth. ... A geologic age is a time period on the geologic timescale delimited by major geologic or paleontologic events. ... The Cretaceous period is one of the major divisions of the geologic timescale, reaching from the end of the Jurassic period (about 135 mya) to the beginning of the Paleocene epoch of the Tertiary period (65 mya). ... The Cretaceous period is one of the major divisions of the geologic timescale, reaching from the end of the Jurassic period (about 146 MYA) to the beginning of the Paleocene epoch of the Tertiary period (65. ... In geology, a period or age is a time span of many millions of years that are assumed to have had similar characteristics. ... The Mesozoic is one of three geologic eras of Phanerozoic eon. ... The table and timeline of geologic periods presented here is in accordance with the dates and nomenclature proposed by the International Commission on Stratigraphy. ... The Phanerozoic (occasionally Phaenerozoic) Eon is the period of geologic time during which abundant animal life has existed. ... The Tithonian (141-135 MYA) is the most recent stage of the Jurassic era. ... Upper Jurassic (also known as Malm) was an epoch of the Jurassic geologic period. ... Jump to: navigation, search The Jurassic period is a major unit of the geologic timescale that extends from about 200 Ma (million years ago) at the end of the Triassic to 146 Ma at the beginning of the Cretaceous. ... In the geologic timescale, Valanginian is an age of the Lower Cretaceous epoch of the Cretaceous period of the Mesozoic era of the Phanerozoic eon. ...
The Cretaceous period is one of the major divisions of the geologic timescale, reaching from the end of the Jurassic period (about 146 MYA) to the beginning of the Paleocene epoch of the Tertiary period (65. ... The Early Cretaceous (timestratigraphic name) or the Lower Cretaceous (logstratigraphic name), is the earlier of the two major divisions of the Cretaceous period. ... The Cretaceous period is one of the major divisions of the geologic timescale, reaching from the end of the Jurassic period (about 135 mya) to the beginning of the Paleocene epoch of the Tertiary period (65 mya). ... In the geologic timescale, Valanginian is an age of the Lower Cretaceous epoch of the Cretaceous period of the Mesozoic era of the Phanerozoic eon. ... Jump to: navigation, search The Barremian faunal stage was a period of geological time between 117 and 113 million years ago. ... Jump to: navigation, search In the geologic timescale, the Aptian is the age of the Lower Cretaceous epoch of the Cretaceous period of the Mesozoic era of the Phanerozoic eon that is comprehended between 125 and 112 million years ago, approximately. ... Jump to: navigation, search Albian (Fr. ... Jump to: navigation, search The Campanian is a stage on the geologic time scale occuring from 83. ... The Maastrichtian is the last age of the Cretaceous period, and therefore of the Mesozoic era. ... The Mesozoic is one of three geologic eras of Phanerozoic eon. ... The Triassic is a geologic period that extends from about 245 to 202 million years ago (mya). ... Jump to: navigation, search The Jurassic period is a major unit of the geologic timescale that extends from about 200 Ma (million years ago) at the end of the Triassic to 146 Ma at the beginning of the Cretaceous. ... The Cretaceous period is one of the major divisions of the geologic timescale, reaching from the end of the Jurassic period (about 146 MYA) to the beginning of the Paleocene epoch of the Tertiary period (65. ...
By the Berriasian, East Gondwana (India, Australia and Antarctica) had separated cleanly from West Gondwana (Africa and South America); and, by the end of the Age, India was beginning to break from East Gondwana.
The cooling trend of the Late Jurassic continued into at least the middle of the Berriasian, and the poles may have borne small permanent ice caps, with glaciers at higher elevation in East Gondwana.
Detail of the late Berriasian succession at La Faurie, near limestone layer 126, showing the device that was used to subdivide the thickness of each layer into a number of equidistant vertical intervals.
This interval comprises calpionellid subzone D1 of the upper Berriasian (Sprenger and ten Kate, 1989 (this chapter) and Fig.
Also, the Berriasian frequency bands of eccentricity (e1: 100 ka, 95 ka, and 123 ka), obliquity (o1: 38.2 ka; o2: 49.2 ka) and precession (p1: 22.8 ka; p2: 18.4 ka) are added with a width ±10% of their values (Berger et al., 1989a/b).
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