Pteroheterochrosperma horseflyensis MacK.A.Sm., Greenwalt et Manchester
Plant Fossil Names Registry Number: PFN003031
Act LSID: urn:lsid:plantfossilnames.org:act:3031
Genus: Pteroheterochrosperma MacK.A.Sm., Greenwalt et Manchester
Reference: Smith, M. K. A., Greenwalt, D. & Manchester, S. R. (2023): Diverse fruits and seeds of the mid-Eocene Kishenehn Formation, northwestern Montana, USA, and their implications for biogeography. – Fossil Imprint 79(1): 37–88.
Page of description: 65
Illustrations or figures: text-fig. 12a
Name is type for
Holotype USNM PAL 722530, National Museum of Natural History, Smithsonian Institution, Washington, D.C., United States
Figures: text-fig. 12a
Winged structure circular; wing has thick striations (up to 0.1 mm) radiating around seed body starting from the seed body and mostly terminating at the margin of the wing, some striations bifurcating; seed body obovate with rugulate sculpture.
The specific epithet is for the Horsefly, British Columbia where the first fossils of this species were described.
Paleogene, Eocene, Lutetian
Kishenehn Formation, ca. 44 Ma
Plant fossil remain
macro- and meso-fossils-embryophytes except wood
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