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EntityQ1032866· pop 19· linked from 319 articles

Darriwilian

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Also known as Darriwilian Stage, Darriwilian Age

The Darriwilian is the upper stage of the Middle Ordovician. 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 of the graptolite species Undulograptus austrodentatus around million years ago. It lasted for about 10.8 million years until the beginning of the Sandbian around million years ago. This stage of the Ordovician was marked by the beginning of the Andean-Saharan glaciation.

Key facts

Geologic timespan.name
Darriwilian
Geologic timespan.color
Darriwilian
Geologic timespan.time_start
469.4
Geologic timespan.time_start_uncertainty
0.9
Geologic timespan.time_end
458.2
Geologic timespan.time_end_uncertainty
0.7
Geologic timespan.image_map
Earth 460 million years ago (Middle Ordivician).png
Geologic timespan.caption_map
Earth during the late Darriwilian stage (460 Ma)
Geologic timespan.timeline
Ordovician
Geologic timespan.name_formality
Formal
Geologic timespan.celestial_body
earth
Geologic timespan.usage
Global (ICS)
Geologic timespan.timescales_used
ICS Time Scale
Geologic timespan.chrono_unit
Age
Geologic timespan.strat_unit
Stage
Geologic timespan.timespan_formality
Formal
Geologic timespan.lower_boundary_def
FAD of the Graptolite Undulograptus austrodentatus
Geologic timespan.lower_gssp_location
Huangnitang Section, Huangnitang Village, Changshan, Zhejiang, China

via Wikipedia infobox

Wikidata facts

Instance of
age
Followed by
Sandbian
Follows
Dapingian
Show 4 more facts
topic's main category
Category:Darriwilian
sRGB color hex triplet
35C9B2
start time
467300000-
end time
470000000-
Sources (6)

via Wikidata · CC0

~2 min read

Encyclopedic overview

5 sections
Contents
  • Naming
  • GSSP
  • Biostratigraphy
  • Regional stages
  • References

The Darriwilian is the upper stage of the Middle Ordovician. 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 of the graptolite species Undulograptus austrodentatus around million years ago. It lasted for about 10.8 million years until the beginning of the Sandbian around million years ago. This stage of the Ordovician was marked by the beginning of the Andean-Saharan glaciation.

==Naming== The name Darriwilian is derived from Darriwil, a parish in County of Grant, Victoria (Australia). The name was proposed in 1899 by Thomas Sergeant Hall.

Excerpted from Wikipedia’s “Darriwilian” article, available under the CC BY-SA 4.0 licence.

On the map

6 mapped locations

Available in 19 languages

via Wikidata sitelinks · CC0