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:9F071F2E-0230-4FB2-AFC2-334D7B4FAEE1 species
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Quercus hannibalii

Quercus hannibalii Dorf Publ. Carnegie Inst. Washington, 412: 86. Oct 1930
Name
Quercus hannibalii
Rank
Species
Original spelling
hannibali
Generic Name
[Genus] Quercus
Authors (Pub.)
Dorf E.  
Publication
Pliocene floras of California [1930/10]
Journal
Publications of the Carnegie Institution of Washington
Volume
412
Page number
86
Year
1930
Parent Taxon
[Genus] Quercus
Fossil Status
leaves
Stratigraphy
Pliocene
Location
Calabazas Canyon and St. Mary's College, California, USA
Paleoregion
America (North)
Data for Syntypus
Repository
Museum of Paleontology, University of California, Berkeley, USA
Repository Number
352-356
Diagnosis
Leaves usually ovate to orbicular at the one extreme and slightly obovate at the other, narrowing rather abruptly, or in some cases gradually, to a rounded or slightly cuneate base; tip varying from abruptly acumirrate or cuspidate to elongate acuminate; length from 1 to 4.4 cm; maximum width from 0.8 to 1.9 cm., average dimensions of the most common type (entire, ovate; see plate 8, fig. 9) 1.3 by 2.9 cm.; petiole short and stout, 2 or 3 nim. long; midrib stout; 5 to 12 pairs of prominent, parallel to sub-parallel secondaries, sub-opposite to alternate, diverging from the midrib at an angle of 60° to 80° (in a few instances as high as 90°), terminating in the marginal teeth or, in the entire-margined forms, turning abruptly upward near the border; tertiary venation indistinct; margin commonly entire though sometimes partly to completely dentate or sinuatedentate, the teeth usually sharply pointed outward; texture coriaceous. There are several obscure impressions of acorn cups which may be referable to this species.

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