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:521454B3-4BC3-71E7-9154-C1D1EE4A8242 species
Back

Acer elenae

Acer elenae Cheleb. Trudy Geol. Inst. Ross. Akad. Nauk, (540): 256. 24-31 Dec 2005
Name
Acer elenae
Rank
Species
Generic Name
[Genus] Acer
Authors (Pub.)
Chelebaeva A. I.  
Publication
Opisanie iskopaemykh rastenij [2005/12]
Journal
Trudy Geologicheskogo Instituta Rossijskoj Akademii Nauk
Issue
540
Page number
256
Year
2005
Fossil Status
leaves
Stratigraphy
Eocene
Strat. comment
Irgirnin Formation
Location
Podkagernaya Bay, western Kamtschatka peninsula, Kamchatka Territory, Russian Federation
Paleoregion
Eurasia (Far East)
Data for Holotypus
Repository
Vernadsky State Geological Museum, Russian Academy of Sciences, Moscow, Russian Federation
Repository Number
8101-63
Num
pl. 29, fig. 1; pl. 24, fig. 3
Pub.
Opisanie iskopaemykh rastenij [2005/12]
Diagnosis
Leaves perfectly actinodromous, orbiculate to wide ovate, to 13—19 cm long, to 13-19 cm wide, shallowly 3-lobed, base truncate to rounded, margin inequally dentate or double dentate; lobes broadly triangular with attenuate apexes, originate predominantly at the upper half of the blade, sinuses between them very shallow; three primary veins make angles of 30-50°, running to the tops of the lobes; medial primary gives off 5-8 secondaries, lateral primaries give off series of basal and apical secondaries; secondary veins slightly curved, craspedodromous, lobal sinal bracing formed by branches from two (external) secondary veins (lower middle pair and lower apical lateral veins). Tertiaries percurrent, slightly curved, part of them forking, anastomosing, near the margin sometimes form angular loops, ending in teeth. Quaternary veins form coarse irregular meshes.

Please login or register to comment on this