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:F9E6D6A2-4E69-5C70-B661-2C080E0C6F52 species
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Lesleya cheimarosa

Lesleya cheimarosa Leary, Pfefferk. Circ. Illinois State Geol. Surv., (500): 25. 1977
Name
Lesleya cheimarosa
Rank
Species
Generic Name
[Genus] Lesleya
Authors (Pub.)
Leary R. L. Pfefferkorn H. W.  
Publication
An early Pennsylvanian flora with Megalopteris and Noeggerathiales from west-central Illinois [1977]
Journal
Circular / Illinois State Geological Survey
Issue
500
Page number
25
Year
1977
Fossil Status
foliage
Stratigraphy
Bashkirian
Strat. comment
Namurian B
Location
Rushville, northeastern Brown County, Illinois, USA
Paleoregion
Laurussia (Laurentia)
Data for Holotypus
Repository
Illinois State Museum, Springfield, USA
Repository Number
ISM 4161+88 a, b
Data for Paratypus
Repository
Illinois State Museum, Springfield, USA
Repository Number
ISM 416508, 416526
Diagnosis
Simple leaf of considerable size, about 20 cm long and k cm vide, lanceolate with acute to attenuate tip. Base long and narrow (acuminate). Margin entire. Venation pinnate, midrib thick, 0.7 to 2 mm wide; lateral veins fork once or twice; lateral veins S-shaped with a 10° to 20° angle at the midvein, 30° to 70° angle in center, and k0° to 70° angle on margin; 2k to 36 veins per cm on margin.

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