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

Ctenophyllum robustum

Cycadopsida - Cycadales - Cycadaceae

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

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

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

phylumCycadophytaBessey 1907
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
show all | hide all
Invalid names: Ctenophyllum emmonsi Fontaine 1883 [synonym]
No diagnoses are available
No measurements are available
No ecological data are available

Age range: base of the Ladinian to the top of the Carnian or 242.00000 to 228.00000 Ma

Collections (5 total)

Time interval Ma Country or state Original ID and collection number
Ladinian242.0 - 237.0Germany Pterophyllum robustum (24820)
Carnian237.0 - 228.0Mexico (Sonora) Pterophyllum robustum (24033 24037 24092)
Carnian237.0 - 228.0Germany (Sud-Deutsche Senke) Pterophyllum robustum (24812)