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Morphology | Ecology and taphonomy | External Literature Search | Age range and collections |
Equisetum perlaevigatum
Taxonomy
Equisetum perlaevigatum was named by Cockerell (1889). It is not extant.
Sister species lacking formal opinion data
Synonyms
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Synonymy list
Year | Name and author |
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1873 | Equisetum laevigatum Lesquereux |
1889 | Equisetum perlaevigatum Cockerell |
1919 | Equisetum perlaevigatum Knowlton |
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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.
†Equisetum perlaevigatum Cockerell 1889
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Invalid names: Equisetum laevigatum Lesquereux 1873 [synonym]
Diagnosis
No diagnoses are available
Measurements
No measurements are available
No ecological data are available
Age range: Early/Lower Maastrichtian or 70.60000 to 66.00000 Ma
Collections: one only
Time interval | Ma | Country or state | Original ID and collection number |
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Early/Lower Maastrichtian | Canada (Alberta) | Equisetum perlaevigatum (193696) |