ช่วงอายุดรูเมียน

Also known as Drumian Stage, Drumian Age, Cambrian Stage 6, Cambrian Age 6

The Drumian is a stage of the Miaolingian Series of the Cambrian. It succeeds the Wuliuan and precedes the Guzhangian. The base is defined as the first appearance of the trilobite Ptychagnostus atavus around million years ago. The top is defined as the first appearance of another trilobite Lejopyge laevigata around million years ago.

Key facts

Geologic timespan.name: Drumian
Geologic timespan.color: Drumian
Geologic timespan.time_start: 504.5
Geologic timespan.time_start_prefix: ~
Geologic timespan.time_end: 500.5
Geologic timespan.time_end_prefix: ~
Geologic timespan.timeline: Cambrian
Geologic timespan.name_formality: Formal
Geologic timespan.name_accept_date: 2006
Geologic timespan.former_names: Cambrian Stage 6
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.proposed_by: Babcock et al., 2006
Geologic timespan.timespan_formality: Formal
Geologic timespan.lower_boundary_def: FAD of the Trilobite Ptychagnostus atavus

via Wikipedia infobox

Wikidata facts

Instance of: age
Followed by: Guzhangian
Follows: Wuliuan

Show 4 more facts

sRGB color hex triplet: BFD99D
start time: 504500000-
end time: 500500000-
Commons category: Drumian

Sources (5)

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On the map

6 mapped locations

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