Browsing by Subject "Oligocene"

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Leaves of Berberidaceae (Berberis and Mahonia) from Oligocene sediments, near Tepexi de Rodríguez, Puebla.

Ramirez, JL; Cevallos-Ferriz, SRS (2000)

From the Oligocene Los Ahuehuetes locality, near Tepexi de Rodríguez, Puebla, Mexico, five new plant species are described based on their leaf architecture. The presence of brochidodromous or acrodromous venation, and ...
Leaves of salicaceae (Salix and Populus) from Oligocene sediments near Tepexi de Rodríguez, Puebla, Mexico

Ramirez, JL; Cevallos-Ferriz, SRS (2000)

Eleven new salicaceous taxa based on fossil leaves, seven Salix and four Populus species, are described from the Oligocene Los Ahuehuetes locality Pie de Vaca Formation, near Tepexi de Rodríguez in Puebla, Mexico. They are ...
Reconstruction of the leaves of two new species of Pseudosmodingium (anacardiaceae) from Oligocene strata of Puebla, Mexico

Ramirez, JL; Cevallos-Ferriz, SRS; Silva-Pineda, A (2000)

they are symmetrical to slightly asymmetrical, with acute to attenuate apex, acute to cuneate base, and entire to serrate margin. Venation is simple pinnate craspedodromous, with secondary veins slightly curved near their base

Now showing items 1-3 of 3

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