- 39°30′42″N 112°59′29″W / 39.5117°N 112.9915°W / 39.5117; -112.9915 The
Drumian is a
stage of the
Miaolingian Series of the Cambrian. It
succeeds the Wuliuan...
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diverse radiodont fauna from the
Marjum Formation of Utah, USA (Cambrian:
Drumian)".
Palaeontology and
Evolutionary Science. 9: e10509. doi:10.7717/peerj...
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Reply to
Comment on "Aysheaia
prolata from the Utah
Wheeler Formation (
Drumian, Cambrian) is a
frontal appendage of the
radiodontan Stanleycaris" with...
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Utahnax vannieri is a
genus of
kerygmachelid lobopodian from the
Drumian of Utah,
either from the
Marjum or
Wheeler formation. Utahnax's
preserved section...
- ~489.5
Jiangshanian ~494 *
Paibian ~497 *
Miaolingian Guzhangian ~500.5 *
Drumian ~504.5 *
Wuliuan ~509
Series 2
Stage 4 ~514
Stage 3 ~521
Terreneuvian Stage...
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years ago and is
divided in
ascending order into 3 stages: the Wuliuan,
Drumian, and Guzhangian. The
Miaolingian is
preceded by the
unnamed Cambrian Series...
-
Frederick A.
Sundberg (2018). "Trilobite
biostratigraphy of the
Cambrian 5 and
Drumian stages,
Series 3 (Laurentian Delamaran, Topazan, and
Marjuman stages, Lincolnian...
-
diverse radiodont fauna from the
Marjum Formation of Utah, USA (Cambrian:
Drumian)".
Palaeontology and
Evolutionary Science. 9: e10509. doi:10.7717/peerj...
-
trilobite species Oryctocephalus indicus; it ends with the
beginning of the
Drumian Stage,
marked by the
first appearance of the
trilobite Ptychagnostus atavus...
- It is
divided into
three stages: the
Wuliuan c. 509 Ma to 504.5 Ma; the
Drumian c. 504.5 Ma to c. 500.5 Ma; and the
Guzhangian c. 500.5 Ma to c. 497 Ma...