Macginitiea — Macginitiea
Macginitiea Kevmin, Wikimedia Commons, CC BY SA 4.0

Plant

Macginitiea

Fossil sycamore leaf

Macginitiea is the Eocene sycamore relative whose palmately lobed leaves, up to 20 cm across, are the largest and most striking broadleaves of the Green River Formation. Complete Macginitiea from the Fossil Butte Member are worth several hundred dollars and above. The five-lobed outline is unmistakable.

PhylumTracheophyta
ClassMagnoliopsida
OrderProteales
FamilyPlatanaceae
GroupPlant
Rank (PBDB)genus· Paleobiology Database
AuthorWolfe and Wehr 1986· Paleobiology Database
Classification (PBDB)Angiospermae › NO_CLASS_SPECIFIED › Proteales › Platanaceae· Paleobiology Database
Range (PBDB)60.9–33.9 Ma· Paleobiology Database
PBDB occurrences29· Paleobiology Database

Elsewhere

Cite this article

Stratum Study. "Macginitiea" (Taxon). Stratum Study pack 2026.09, as of 2026-09-19. https://stratum.black/study/taxa/macginitiea. Accessed 2026-09-20.

@misc{stratum-macginitiea,
  title        = {Macginitiea},
  author       = {{Stratum Study}},
  howpublished = {\url{https://stratum.black/study/taxa/macginitiea}},
  year         = {2026},
  note         = {Taxon article, Stratum Study pack 2026.09, as of 2026-09-19; sources: stratum, pbdb, wikidata, commons. Accessed 2026-09-20.}
}

Citations carry the pack version and the article's as-of date so they resolve to the same text later. The facts themselves belong to the sources listed below; cite those for the science.