Basic info Taxonomic history Classification Included Taxa
Morphology Ecology and taphonomy External Literature Search Age range and collections

Equisetum magnum

Polypodiopsida - Equisetales - Equisetaceae

Taxonomy
Equisetum magnum was named by Hickey (1977). Its type specimen is USNM 43744. Its type locality is Otter Creek (USNM 14066a), which is in a Clarkforkian channel shale in the Golden Valley Formation of North Dakota.

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

Synonymy list
YearName and author
1977Equisetum magnum Hickey

Is something missing? Join the Paleobiology Database and enter the data

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

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 magnum Hickey 1977
show all | hide all
Diagnosis
No diagnoses are available
Measurements
No measurements are available
No ecological data are available

Age range: base of the Clarkforkian to the top of the Wasatchian or 56.20000 to 50.50000 Ma

Collections (6 total)


Time interval Ma Country or state Original ID and collection number
Clarkforkian56.2 - 54.9USA (North Dakota) Equisetum magnum (10803 10805 10808 type locality: 10811 10982)
Wasatchian54.9 - 50.5USA (North Dakota) Equisetum magnum (10802)