New and poorly known ferns from the Santa Clara Formation, Late Triassic, Sonora, NW Mexico; III Marattiales. Tranquilia Herbst—a Panamerican dimorphic genus
The dimorphic marattialian fern Tranquilia whitneyi (Newberry) Herbst - formerly “Alethopteris whitneyi Newberry” and “Pecopteris falcatus Emmons”- from the Carnian (and perhaps Norian?) Santa Clara Formation of central Sonora, NW Mexico, is redescribed. Most of the older specimens of this species...
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| Format: | Article |
| Language: | English |
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Universidad Nacional Autónoma de México
2018-11-01
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| Series: | Revista Mexicana de Ciencias Geológicas |
| Subjects: | |
| Online Access: | https://rmcg.unam.mx/index.php/rmcg/article/view/1068 |
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