- The
Ordovician (/ɔːrdəˈvɪʃi.ən, -doʊ-, -ˈvɪʃən/ or-də-VISH-ee-ən, -doh-, -VISH-ən) is a
geologic period and system, the
second of six
periods of the...
- Cap Late D O–S The Late
Ordovician m****
extinction (LOME),
sometimes known as the end-
Ordovician m****
extinction or the
Ordovician-Silurian extinction, is...
- The Late
Ordovician, also
called the
Upper Ordovician by geologists, is the
third epoch of the
Ordovician period. At this time
Western and
Central Europe...
- K–Pg Tr–J P–Tr Cap Late D O–S The Cambrian–
Ordovician extinction event, also
known as the Cambrian-
Ordovician boundary event, was an
extinction event that...
-
appearing in the
Ordovician include:
Cyclopyge (Early to Late
Ordovician)
Selenopeltis (Early to Late
Ordovician)
Parabolina (Early
Ordovician)
Cheirurus (Middle...
-
subdivided into six
geologic periods (from
oldest to youngest):
Cambrian Ordovician Silurian Devonian Carboniferous Permian Some
geological timescales divide...
-
geologic period and
system spanning 24.6
million years from the end of the
Ordovician Period, at 443.8
million years ago (Mya), to the
beginning of the Devonian...
- The
Great Ordovician Biodiversification Event (GOBE), was an
evolutionary radiation of
animal life
throughout the
Ordovician period, 40
million years after...
-
Sacabambaspis is an
extinct genus of
jawless fish that
lived in the
Ordovician period.
Sacabambaspis lived in
shallow waters on the
continental margins...
- The
Ordovician meteor event was a
dramatic increase in the rate at
which L
chondrite meteorites fell to
Earth during the
Middle Ordovician period, about...
