- 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...
-
Aptian extinction was an
extinction event of the
early Cretaceous Period. It is
dated to c. 116 or 117
million years ago, in the
middle of the
Aptian...
-
Cretaceous (
Aptian)
Chaoyangia Duan, 1998
Yixian Formation, China,
Early Cretaceous (
Aptian)
Eragrosites Yixian Formation, China,
Early Cretaceous (
Aptian) Gurvanella...
- étages (stages): the Neocomian,
Aptian, Albian, Turonian, and Senonian,
later adding the
Urgonian between Neocomian and
Aptian and the
Cenomanian between the...
- Formation, Brazil,
Aptian ?Weald Clay,
United Kingdom,
Hauterivian †Brontogryllus Martins-Neto 1991
Crato Formation, Brazil,
Aptian †Gryllospeculum Gorochov...
- an
oceanic anoxic event (OAE) of
global scale that
occurred during the
Aptian stage of the
Early Cretaceous,
about 120.5
million years ago (Ma). The OAE...
-
Cretaceous (
Aptian)
Leongathia V.A. Kr****ilov, D.L.
Dilcher & J.G.
Douglas 1998
Koonwarra fossil bed, Australia,
Early Cretaceous (
Aptian) Jianchangia...
- Barremian–
Aptian boundary ranged from 126 to 117 Ma
until recently (as of 2019), but
based on
drillholes in
Svalbard the
defining early Aptian Oceanic Anoxic...
-
Molecular clock estimates indicate that the
rosids may have
originated in the
Aptian or
Albian stages of the Cretaceous,
between 125 and 99.6
million years ago...
- The
Aptian-Albian Cold Snap (AACS) was an
interval of cool
climate during the late
Aptian and
early Albian stages of the
Early Cretaceous epoch. It began...
