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Haydenia

Polypodiopsida - Cyatheales - Cyatheaceae

Taxonomy
Haydenia was named by Seward (1912). It is not extant.

It was assigned to Cyatheaceae by Andrews (1970), Lakhanpal et al. (1976) and Chandra and Tewari (1991).

Synonymy list
YearName and author
1912Haydenia Seward
1970Haydenia Andrews
1976Haydenia Lakhanpal et al.
1991Haydenia Chandra and Tewari

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RankNameAuthor
kingdomPlantae
phylumPteridophyta
classPolypodiopsida
subclassPolypodiidae()
RankNameAuthor
orderCyathealesPryor et al. 1995
familyCyatheaceaeKaulfuss 1827
genusHaydeniaSeward 1912

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.

G. †Haydenia Seward 1912
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†Haydenia thyrsopteroides Seward 1912
Diagnosis
No diagnoses are available
Measurements
No measurements are available
No ecological data are available

Age range: Late/Upper Jurassic or 161.50000 to 145.00000 Ma

Collections: one only


Time interval Ma Country or state Original ID and collection number
Late/Upper Jurassic161.5 - 145.0India (Jharkhand) H. thyrsopteroides (225504)