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Velascoa pueblensis
Velascoa pueblensis Flores-Barragan, E. Ortega Ch. in Flores-Barragan, Velasco-L., E. Ortega Ch. J. S. Amer. Earth Sci., 110(103408): [4]. 12 Jun 2021
- Name
- Velascoa pueblensis
- Rank
- Species
- Generic Name
- [Genus] Velascoa
- Authors (Name)
- Flores-Barragan M. A.
Ortega Chávez E.
- Authors (Pub.)
- Flores-Barragan M. A.
Velasco-de León M. P.
Ortega Chávez E.
- Publication
- New genus for megaphyllous leaves from the Upper Paleozoic of Mexico Velascoa pueblensis gen. nov. [2021/6]
- Journal
- Journal of South American Earth Sciences
- Volume
- 110
- Issue
- 103408
- Page number
- [4]
- Year
- 2021
- Fossil Status
- foliage
- Stratigraphy
- Permian
- Strat. comment
- Matzitzi Formation
- Location
- Coatepec, municipality of Caltepec, state of Puebla, Mexico
- Paleoregion
- Laurussia (Laurentia)
Data for Holotypus
- Repository
- Colección de Paleontología, Facultad de Estudios Superiores, Zaragoza, Universidad Nacional Autónoma de México, México, México
- Repository Number
- CFZ-MTZ542
Data for Paratypus
- Repository
- Colección de Paleontología, Facultad de Estudios Superiores, Zaragoza, Universidad Nacional Autónoma de México, México, México
- Repository Number
- CFZ-MTZ142, 208, 531, 543 (1), 553, 745
- Diagnosis
- Leaves of large size in the shape of a fan that opens at an angle
greater than 90◦. Petiole of great length and constant width, at the base
of which undifferentiated veins thicken towards the distal part and
insert into the lamina in a number larger than two; the resulting segments
divide again up to three times (here we use the terms of first,
second, and third order, referring to their arrangement with respect to
the base of the leaf); lanceolate segments, entire margins, straight veins
that dichotomize before each division, the abaxial lamina exhibits
epidermal cells with slightly sinuous to crenulated walls, with trichome
bases, and an anomocytic stomatal apparatus.
