The INTERNATIONAL FOSSIL PLANT NAMES INDEX
Global registry of scientific names of fossil organisms covered by the International Code of Nomenclature for Algae, Fungi, and Plants and the International Code of Zoological Nomenclature © 2014-2025

IDNAME urn:idName:ifpni.org:species:C2CA5D23-BB45-629D-9FC4-0F49827140D3 species
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Salix alencasterae

Salix alencasterae J.L. Ramírez, Cev.-Ferriz Int. J. Pl. Sci., 161(3): 525. May 2000
Name
Salix alencasterae
Rank
Species
Generic Name
[Genus] Salix
Authors (Pub.)
Ramírez J. L. Cevallos-Ferriz S. R. S.  
Publication
Leaves of Salicaceae (Salix and Populus) from Oligocene sediments near Tepexi de Rodríguez, Puebla, Mexico [2000/5]
Journal
International Journal of Plant Sciences
Volume
161
Issue
3
Page number
525
Year
2000
Fossil Status
leaves
Stratigraphy
Oligocene
Strat. comment
Pie de Vaca Formation
Location
Los Ahuehuetes locality, on the southern bank of the Axamilpa River, northwest of Tepexi de Rodríguez, Puebla, Mexico
Paleoregion
America (North)
Data for Holotypus
Repository
Universidad Nacional Autónoma de México, Instituto de Geología, México, México
Repository Number
IGM-PB 1097 [fig. 3.17, 3.19], IGM-PB 1098 [fig. 3.18]
Diagnosis
Very narrow elliptic-shaped lamina, 42.0–99.0 mm in length by 8.0–13.0 mm in width and with a length/width ratio of 7.6 : 1; petiolated, narrow rounded base; acute apex (20), entirely or scarcely toothed margin, salicoid teeth; pinnate venation, straight and stout midvein, 14 pairs of eucamptodromous secondary veins, with a pronounced development near the margin; IAMV of 58 (48–73); rectangular to very angular arcs near the margin; slightly curved intersecondary veins; tertiary percurrent veins in intercostal areas with tortuous trajectory; high-order veins form a random reticulate pattern.

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