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Dicotylophyllum mercerensis

Magnoliopsida

Taxonomy
Dicotylophyllum mercerensis was named by Hickey (1977). It is not extant. Its type specimen is USNM 43239. Its type locality is Goodman Creek Bluffs (USNM 14059), which is in a Clarkforkian channel siltstone in the Golden Valley Formation of North Dakota.

Sister species lacking formal opinion data
D. corifolium, D. kummerensis, D. lobatus

Synonymy list
YearName and author
1977Dicotylophyllum mercerensis Hickey p. 149 figs. Pl. 50, figs. 3, 4; Pl. 51, fig. 1

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RankNameAuthor
kingdomPlantae
subkingdomViridiplantaeCavalier-Smith 1981
—Streptophyta(Jeffrey 1971)
superphylumEmbryophyta()
—Tracheophyta(Sinnott 1935)
RankNameAuthor
phylumSpermatophyta
classMagnoliopsidaCronquist et al. 1996
genusDicotylophyllumSaporta 1894
speciesmercerensis

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.

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Diagnosis
No diagnoses are available
Measurements
No measurements are available
Diet: "photoautotroph"superp
Created: 2026-03-30 14:38:16
Modified: 2026-03-30 14:38:16
Source: superp = superphylum
Reference: Kenrick and Crane 1997

Age range: Clarkforkian or 57.50000 to 56.00000 Ma

Collections (4 total)


Time interval Ma Country or state Original ID and collection number
Clarkforkian57.5 - 56.0USA (Wyoming) Dicotylophyllum mercerensis (11377 11380 11420)
Clarkforkian57.5 - 56.0USA (North Dakota) Dicotylophyllum mercerensis (type locality: 10810)