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Ctenophyllum robustum

Cycadopsida - Cycadales - Cycadaceae

Taxonomy
Pterophyllum robustum was named by Emmons (1857). It is not extant.

It was recombined as Ctenophyllum robustum by Fontaine (1883).

Sister species lacking formal opinion data
C. angustifolim, C. braunianum
Entered
by B. Allen on 2022-01-17

Synonyms
Synonymy list
YearName and author
1857Pterophyllum robustum Emmons
1883Ctenophyllum emmonsi Fontaine
1883Ctenophyllum robustum Fontaine

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RankNameAuthor
kingdomPlantae
subkingdomViridiplantaeCavalier-Smith 1981
—Streptophyta(Jeffrey 1971)
superphylumEmbryophyta()
phylumCycadophytaBessey 1907
RankNameAuthor
classCycadopsidaBrongniart 1843
orderCycadalesDumortier 1829
familyCycadaceaePersoon 1807
genusCtenophyllumSchimper 1870
speciesrobustum(Emmons 1857)

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.

†Ctenophyllum robustum Emmons 1857
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Invalid names: Ctenophyllum emmonsi Fontaine 1883 [synonym]
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: base of the Ladinian to the top of the Carnian or 241.46400 to 227.30000 Ma

Collections (5 total)


Time interval Ma Country or state Original ID and collection number
Ladinian241.464 - 237.0Germany Pterophyllum robustum (24820)
Carnian237.0 - 227.3Mexico (Sonora) Pterophyllum robustum (24033 24037 24092)
Carnian237.0 - 227.3Germany (Sud-Deutsche Senke) Pterophyllum robustum (24812)