| Basic info | Taxonomic history | Classification | Included Taxa |
| Morphology | Ecology and taphonomy | External Literature Search | Age range and collections |
Tapeinidium
Taxonomy
Tapeinidium was named by Christensen (1906). It is extant.
It was assigned to Polypodiaceae by Knowlton (1919); and to Lindsaeaceae by I (2016).
It was assigned to Polypodiaceae by Knowlton (1919); and to Lindsaeaceae by I (2016).
Species
Species lacking formal opinion data
Synonymy list
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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.
Diagnosis
No diagnoses are available
Measurements
No measurements are available
No ecological data are available
Age range: Late/Upper Santonian or 85.70000 to 83.60000 Ma
Collections (4 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Late/Upper Cretaceous | USA (Wyoming) | T. undulatum (31382) | |
| Late/Upper Santonian | Canada (Alberta) | T. Undulatum (35083 35084 35089) |