Pteroheterochrosperma MacK.A.Sm., Greenwalt et Manchester
Plant Fossil Names Registry Number: PFN003030
Act LSID: urn:lsid:plantfossilnames.org:act:3030
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: 63
Pteroheterochrosperma horseflyensis MacK.A.Sm., Greenwalt et Manchester
Winged structure circular with dark, thick striations radiating around obovate seed body, seed body with rugulate sculpture.
The genus is Greek for “variegated winged seed” with “ptero-” for “wing”, “-heterochros-” for “variegated” and “-sperma” for “seed.