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Equisetum similkamense

Polypodiopsida - Equisetales - Equisetaceae

Taxonomy
Equisetum similkamense was named by Dawson (1878). It is not extant. Its type locality is 3 miles up North Fork of Similkameen River, which is in a Ypresian lacustrine shale/siltstone in the Allenby Formation of Canada.

Sister species lacking formal opinion data
E. aquatile, E. brongniartii, E. burchardtii, E. laterale, E. pellati, E. winchesteri

Synonymy list
YearName and author
1878Equisetum similkamense Dawson
1919Equisetum similkamense Knowlton

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RankNameAuthor
kingdomPlantae
phylumPteridophyta
classPolypodiopsida
subclassEquisetidaeWarm 1883
RankNameAuthor
orderEquisetalesDumortier 1829
familyEquisetaceaeDe Candolle 1804
genusEquisetum
speciessimilkamenseDawson 1878

If no rank is listed, the taxon is considered an unranked clade in modern classifications. Ranks may be repeated or presented in the wrong order because authors working on different parts of the classification may disagree about how to rank taxa.

†Equisetum similkamense Dawson 1878
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Diagnosis
No diagnoses are available
Measurements
No measurements are available
No ecological data are available

Age range: Ypresian or 56.00000 to 48.07000 Ma

Collections: one only


Time interval Ma Country or state Original ID and collection number
Ypresian56.0 - 48.07Canada (British Columbia) Equisetum similkamense (type locality: 112781)