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 © 2014-2024

IDNAME urn:idName:ifpni.org:species:CA1E12DC-9249-49F5-BF02-B1B5CFD4C029 species
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Populus prefremontii

Populus prefremontii Dorf Publ. Carnegie Inst. Washington, 412: 77. Oct 1930
Name
Populus prefremontii
Rank
Species
Generic Name
[Genus] Populus
Authors (Pub.)
Dorf E.  
Publication
Pliocene floras of California [1930/10]
Journal
Publications of the Carnegie Institution of Washington
Volume
412
Page number
77
Year
1930
Parent Taxon
[Genus] Populus
Fossil Status
leaves
Stratigraphy
Pliocene
Location
St. Mary's College, California, USA
Paleoregion
America (North)
Data for Not defined
Repository
Museum of Paleontology, University of California, Berkeley, USA
Repository Number
332
Diagnosis
Leaves broadly deltoid to reniform, invariably wider than long, narrowing to an acutely acuminate or slightly rounded apex, and very abruptly to a wide, truncate or slightly cordate base; length from 4 to 5 cm.; width from 5 to 6.2 cm.; petiole not preserved; midrib thin, but firm and straight; 6 to 9 pairs of thin, opposite to alternate secondaries, diverging from the midrib at an obtuse angle approaching 90° near the base and somewhat less toward the apex; secondaries curving widely upward, becoming obscured near the margin; tertiary venation indistinct; margin coarsely serrate, the teeth large, rounded, and asymmetrically pointing toward the apex; texture sub-coriaceous, as indicated by the indistinct venation and the curling of the borders in a few of the specimens.

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