- The
Sandbian is the
first stage of the
Upper Ordovician. It
follows the
Darriwilian and is
succeeded by the Katian. Its
lower boundary is
defined as the...
- It is
preceded by the
Dapingian and
succeeded by the
Upper Ordovician Sandbian Stage. The
lower boundary of the
Darriwilian is
defined as the
first appearance...
- Spiriferidae.
Species belonging to the
genus lived from the
Middle Ordovician (
Sandbian)
through to the Late Tri****ic (Carnian) with a
global distribution. They...
- The
Llanvirn corresponds to the late Darriwilian. The
Caradoc covers the
Sandbian and the
first half of the Katian. The
Ashgill represents the
second half...
-
Jacalyn M.; Ganis, G. Robert; Cheng, Guo (2019). "The Late
Ordovician (
Sandbian)
Glasford structure: A marine-target
impact crater with a
possible connection...
-
about 10
kilometers east of Lund and 30
kilometers northeast of Malmö. The
Sandbian Age of the
Ordovician Period of
geological time is
named for Södra Sandby...
- and
zircon from the
Brent impact structure, Canada: a Late
Ordovician Sandbian–Katian
boundary event ****ociated with L-Chondrite
parent body disruption"...
- trilobites, bivalves,
corals and conodonts. 445.2 ± 1.4 *
Katian 453 ± 0.7 *
Sandbian 458.4 ± 0.9 *
Middle Darriwilian 467.3 ± 1.1 *
Dapingian 470 ± 1.4 * Lower/Early...
- the Gull
River Formation in Kingston, Ontario,
dating from the
latest Sandbian, late Ordovician, c. 454 million
years ago. This site was a warm-water...
-
evidence from the
Sandbian reveals three possible glaciations: an
early Sandbian glaciation, a
middle Sandbian glaciation, a late
Sandbian glaciation. Although...
