Taeniopteris crassinervis (Feistmantel) Arber, 1917
publication ID |
https://doi.org/ 10.26879/1109 |
DOI |
https://doi.org/10.5281/zenodo.10993017 |
persistent identifier |
https://treatment.plazi.org/id/EF5C87DE-574F-FFE6-5E96-F966FA80FC17 |
treatment provided by |
Felipe |
scientific name |
Taeniopteris crassinervis (Feistmantel) Arber, 1917 |
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Taeniopteris crassinervis (Feistmantel) Arber, 1917
Figure 4 View FIGURE 4 E-F
Material. CFZMTZ-713.
Locality. Coatepec.
Description. Entire lamina, with entire margins, 6.8 cm long and 5.3 cm wide at the mid-part. The leaf width appears to be constant. The shape of the base and apex are unknown. Undulations are observed in the lamina, which could be the result of desiccation and/or the fossilization process. The lamina attaches laterally to the rachis. The rachis is slim, retaining its width throughout the whole leaf with a maximum width of 0.3 cm. The veins emanate from the rachis at 90°. This venation divides at the proximal part of the rachis and then becomes parallel along it. It can have a density of up to 14 to 16 veins per centemeter at the mid-part of the leaf. Remarks. After comparing it with 42 different species of the genus ( Table 4 View TABLE 4 ), the specimen from Puebla was assigned to the species Taeniopteris crassinervis , since it exhibits strong veins with a similar venation density and perpendicular angle at which they are inserted regarding to the rachis. Another diagnostic characteristic of this species is the dichotomy of the veins in the contact area with the rachis ( Figure 4E View FIGURE 4 ). This species has been reported for the Triassic of Argentina ( Artabe, 1985), United States, India, Australia, New Zealand, and Africa (Beherensmeyer and Turner, 2019). This new report would correspond to the most southern record of North America.
No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.
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