Acer dimorphum

†Acer dimorphum

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: incertae sedis
Species: †Acer dimorphum

• Status:   nomen dubium  

Name

†Acer dimorphum Lesq., Proc. U.S. Natl. Mus., 11: 15. 8 Nov 1888

Type material

• Holotype: USNM P2415
  • Repository:Paleobotany collections, Paleobiology Collections, National Museum of Natural History, Smithsonian Institution, National Mall, Washington DC, United States

Type locality

• Miocene, Aquitanian-Serravallian (Hemingfordian-Barstovian NALMA); Mascall Formation; Riverbank Locality IV/Van Horn’s Ranch, Grant County, Oregon, United States

Distribution

Miocene

• Aquitanian-Serravallian (Hemingfordian-Barstovian NALMA)
  • Mascall Formation; Riverbank Locality IV/Van Horn’s Ranch, Grant County, Oregon, United States

References

Primary references

• Lesquereux, L.C. 1888. Recent determinations of fossil plants from Kentucky, Louisiana, Oregon, California, Alaska, Greenland, etc., with descriptions of new species. Proceedings of the United States National Museum 11: 11–38, pl. 4-16.  BHLReference page. 
• 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. 

Links

• IFPNI International Editorial Board 2014–2026. The International Fossil Plant Names Index. Acer dimorphum. Published online. Accessed: 2026 January 24.