Acer minutifolium

†Acer minutifolium

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
Sectio: A. sect. Acer
Series: A. ser. Saccharodendron
Species:†Acer minutifolium

Name

†Acer minutifolium Chaney Contr. Walker Mus., 2(5): 179. Jul 1920 orth. emend.

Synonyms

• Homotypic
  • †Acer minutifolia Chaney. 1920. 179. pl. 19. f.2. orth. var.
• Heterotypic
  • †Liriodendron trilobata Chaney. 1920. 173. pl. 14, f. 4.

Type material

• Holotype: UCWM 22348 (leaf)
  • Repository: Field Museum of Natural History, Chicago, Crook County, Illinois, United States

• ⧼Hypotypes⧽: GSC 82967 (leaf) 82968 (fruit)
  • Repository: Repository: Geological Survey of Canada, Ottawa, Ontario, Canada

• ⧼hypotype⧽: UCMP 9190 (leaf)
  • Repository: Museum of Paleontology, University of California Berkeley, Berkeley, Alameda County, California, Unites States

• ⧼hypotype⧽: UCWM 22348 (leaf)
  • Repository: Field Museum of Natural History, Lake Shore Drive, Chicago DC, United States

• ⧼Hypotype⧽: USNM 396020 A&B, 396200, 396201 (leaves)
  • Repository: United States National Museum, Smithsonian Institution, National Mall, Washington DC, United States

Type locality

• Miocene, Early Miocene; Eagle Creek Formation; Columbia River Highway .25 mi (0.40 km) west of Tanner Creek (Chaney IV, USGS 1049, USGS 9425), Columbia River Gorge, Multnomah County, Oregon, United States

Etymology

• "none given"

Distribution

Miocene

• Early Miocene
  • Eagle Creek Formation; Columbia River Highway .25 mi (0.40 km) west of Tanner Creek (Chaney IV, USGS 1049, USGS 9425), Columbia River Gorge, Multnomah County, Oregon, United States
• Middle Miocene
  • Fraser Bend Formation, Chilcotin River flora (GSC 5786), Chilcotin Group; Chilcotin River, British Columbia, Canada

References

Primary references

• Chaney, R.W. 1920. The flora of the Eagle Creek Formation. Contributions from Walker Museum 2(5): 115–181, pl. 5-22.  HathiTrustReference 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 minutifolium. Published online. Accessed: 2026 January 16.