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2019-10-09 07:18:26.0 [tstevens] Insert Concept
add broader relation (APTIAN [4542d23f-a390-4e21-a905-79ec5e9c66ec,369277] - LOWER
[db06b2a9-4ed5-4222-8533-fbf3ed3bdc23,369245]);
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2019-10-09 10:07:35.0 [tstevens]
insert Definition (id: null
text: The Aptian is an age in the geologic timescale or a stage in the stratigraphic
column. It is a subdivision of the Early or Lower Cretaceous epoch or series and encompasses
the time from 125.0 ± 1.0 Ma to 113.0 ± 1.0 Ma (million years ago), approximately.
The Aptian succeeds the Barremian and precedes the Albian, all part of the Lower/Early
Cretaceous.
The Aptian partly overlaps the upper part of the regionally used (in Western Europe)
stage Urgonian.
The Selli Event, also known as OAE1a, was one of two oceanic Anoxic events in the
Cretaceous period, which occurred around 120 Ma and lasted approximately 1 to 1.3
million years. The Aptian extinction was a minor extinction event hypothesized to
have occurred around 116 to 117 Ma.
language code: en);
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| definition |
The Aptian is an age in the geologic timescale or a stage in the stratigraphic column.
It is a subdivision of the Early or Lower Cretaceous epoch or series and encompasses
the time from 125.0 ± 1.0 Ma to 113.0 ± 1.0 Ma (million years ago), approximately.
The Aptian succeeds the Barremian and precedes the Albian, all part of the Lower/Early
Cretaceous.
The Aptian partly overlaps the upper part of the regionally used (in Western Europe)
stage Urgonian.
The Selli Event, also known as OAE1a, was one of two oceanic Anoxic events in the
Cretaceous period, which occurred around 120 Ma and lasted approximately 1 to 1.3
million years. The Aptian extinction was a minor extinction event hypothesized to
have occurred around 116 to 117 Ma.
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chronounits original |
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