Acer heterodentatum

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. Negundo
Species: †Acer heterodentatum

Name

Acer heterodentatum (Chaney) MacGinitie Publ. Carnegie Inst. Washington, (599): 140. 26 May 1953

• Basionym
  • Crataegus heterodentata Chaney Contr. Walker Mus., 2(5): 175. Jul 1920

Type material

• Lectotype: UCWM 22347 (leaf)
  • Repository: Field Museum of Natural History, Lake Shore Drive, Chicago DC, United States

• Referred material: UCMP 9173, 9174, 9056 (leaves) 9340, 9341, 9057, 9058 (fruits)
  • Repository: Museum of Paleontology, University of California Berkeley, Berkeley, Alameda County, California, Unites States

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

• Referred material: USNM 208477, 20847 A&B, 208469, 208470, 208471, 208472, 208473, 208474, 208475, 208476, 208477, 208478, 208479, 208480, 208481 (leaves)
  • Repository: United States National Museum, Smithsonian Institution, National Mall, Washington DC, United States

Type locality

• Miocene, Early Miocene; Eagle Creek Formation; Eagle Creek Trail 1/2 mile post (Chaney II), Columbia River Gorge, Multnomah County, Oregon, United States

Etymology

• None given

Distribution

Late Oligocene-Early Miocene

• Seldovian
  • Tyonek Formation, Kenai Group; Seldovia Point (USGS 9858); Seldovia Point, Cook Inlet, Kenai Peninsula Borough, Alaska, United States

Miocene

• Early Miocene
  • Eagle Creek Formation; Eagle Creek Trail 1/2 mile post (Chaney II), Columbia River Gorge, Multnomah County, Oregon, United States
• Aquitanian
  • Little Butte Formation; Collawash II (UCMP PA-l), near the Collawash River, Clackamas County Oregon, United States

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 2014–56852-1. The International Fossil Plant Names Index. Acer heterodentatum. Published online. Accessed: 56852-1 2025 December 10.