- 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 is the
third and
final epoch of the
Ordovician period,
lasting 14.6
million years and
spanning from
around 458.4 to 443.8 million...
- The
Early Ordovician is the
first epoch of the
Ordovician period,
corresponding to the
Lower Ordovician series of the
Ordovician system. It
began after...
-
subdivided into six
geologic periods (from
oldest to youngest), Cambrian,
Ordovician, Silurian, Devonian,
Carboniferous and Permian. Some
geological timescales...
-
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...
-
appearing in the
Ordovician include:
Cyclopyge (Early to Late
Ordovician)
Selenopeltis (Early to Late
Ordovician)
Parabolina (Early
Ordovician)
Cheirurus (Middle...
- The
Great Ordovician Biodiversification Event (GOBE), was an
evolutionary radiation of
animal life
throughout the
Ordovician period, 40
million years after...
-
Ediacaran period 538.8 Ma (million
years ago) to the
beginning of the
Ordovician Period 485.4 Ma. Most of the
continents lay in the
southern hemisphere...
- 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...
