Pteroheterochrosperma

Pteroheterochrosperma Temporal range: Early Eocene–Ypresian PreꞒ Ꞓ O S D C P T J K Pg N
Scientific classification
Kingdom:	Plantae
Clade:	Tracheophytes
Clade:	Angiosperms
Order:	incertae sedis
Genus:	† Pteroheterochrosperma
Species:	†P. horseflyensis
Binomial name
†Pteroheterochrosperma horseflyensis Smith, Greenwalt, & Manchester

Pteroheterochrosperma ("variegated winged seed") is an extinct genus of angiosperms. Its sole species is Pteroheterochrosperma horseflyensis. The species is named after the Canadian community of Horsefly, British Columbia, where the fossil was found. ^{[1] [2] [3]}

References

1. "Pteroheterochrosperma MacK.A.Sm., Greenwalt et Manchester | Plant Fossil Names". Plant Fossil Names. Retrieved 2025-08-24.
2. Smith, MacKenzie A.; Greenwalt, Dale E.; Manchester, Steven 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. doi: 10.37520/fi.2023.004 . ISSN   2533-4069.
3. "Pteroheterochrosperma horseflyensis MacK.A.Sm., Greenwalt et Manchester | Plant Fossil Names". www.plantfossilnames.org. Retrieved 2025-08-27.