Acer grantense

Taxonavigation

Taxonavigation: Sapindales
Classification System: APG IV Superregnum: Eukaryota Cladus: Diaphoretickes Cladus: CAM Cladus: Archaeplastida Regnum: Plantae Cladus: Angiosperms Cladus: Eudicots Cladus: Core eudicots Cladus: Rosids Cladus: Eurosids II Ordo: Sapindales

Familia: Sapindaceae
Subfamilia: Hippocastanoideae
Tribus: Acereae
Genus: Acer
Section: Acer sect. Lithocarpa
Species: †Acer grantense

Name

Acer grantense J.A.Wolfe & Tanai J. Fac. Sci. Hokkaido Univ., Ser. 4, Geol., 22(1): 166, 168 pl. 19, figs. 1-3,5,6. Feb 1987

Synonyms

• Pro Parte, non-typic
  • †Acer glabroides auct. non R.W.Brown. Becker. 1961 (part). 113. pl. 36, f. 9, 11, 12, 15. 16, 18.

Type material

• Holotype: YPM/NYBG 502 (fruit)
  • Repository: Paleobotany collections, Yale Peabody Museum, New Haven, Connecticut, United States
    • Note: Specimens originally in New York Botanic Gardens collection, transferred to the Yale Peabody Museum circa 2014.

• Paratypes: USNM 396187 (fruit)
  • Repository: United States National Museum, Smithsonian Institution, National Mall, Washington DC, United States

• Paratypes: YPM/NYBG 503, 504, 597, 600 (fruits)
  • Repository: Paleobotany collections, Yale Peabody Museum, New Haven, Connecticut, United States
    • Note: Specimens originally in New York Botanic Gardens collection, transferred to the Yale Peabody Museum circa 2014.

Type locality

• Eocene, Priabonian/Chadronian; Christensen Ranch (Becker 32), Powell County, Montana, United State

Etymology

• "The occurrences of Acer grantense are in the general vicinity of Grant, Montana."

Distribution

Eocene

• Priabonian/Chadronian
  • Renova Formation; Grant (Becker 69, USGS 8513), Beaverhead Basin, Beaverhead County, Montana, United States
  • Renova Formation; Christensen Ranch (Becker 32), Powell County, Montana, United States

References

• Wolfe, J.A. & Tanai, T. 1987. Systematics, Phylogeny, and Distribution of Acer (maples) in the Cenozoic of Western North America. Journal of the Faculty of Science, Hokkaido University. Series 4, Geology and Mineralogy 22(1): 1–246.  PDF Reference page. 

Additional references

• Becker, H.F. 1961. Oligocene plants from the upper Ruby River Basin, southwestern Montana. Memoir-Geological Society of America 82: 1–122. doi:10.1130/MEM82-p1. ISSN 0072-1069.  Reference page. 

Links

• IFPNI International Editorial Board 2014–2026. The International Fossil Plant Names Index. Acer grantense. Published online. Accessed: 2026 January 14.