Acer medianum

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. Columbiana
Species:†Acer medianum

Name

†Acer medianum Knowlt. Bull. U.S. Geol. Surv., (204): 76. pl. 14. f. 4, 5. Dec 1902

Synonyms

• Heterotypic
  • †Acer tuckeri (H.V. Smith) LaMotte 1952. 57.
  • †Engelhardia tuckeri H.V. Smith 1938a. 226. pl. 1, f.4.
  • †Quercus malheurensis H.V. Smith 1938b. 560. pl. 29, f.1.
  • †Acer middlegatei Axelrod. 1956 (part, typic). 307. pl. 31, f. 10, 11.
  • †Acer middlegatensis Axelrod 1985 (part). 171. pl. 14, f. 10, 12.
  • †Acer columbianum Chaney & Axelrod (non Penhallow, 1908). 1959 (part. typic), 192. pl. 40, f. 103.
  • †Acer columbianum Chaney & Axelrod (non Penhallow, 1908) Smiley. 1963. 227. pl. 13, f. 7, 8.
  • †Acer columbianum Chaney & Axelrod (non Penhallow, 1908) Graham. 1965. 66. pl. 6. f. 1.
  • †Acer nevadensis Axelrod. 1985 (part, typic). 173. pl. 13, f. 5.

• Pro Parte, non-typic
  • †Acer bolanderi auct. non Lesquereux. H.V. Smith. 1938b. 562. pl. 28, f. 5; pl. 29. f. 8.
  • †Acer bolanderi auct. non Lesquereux. H.V. Smith. 1939. 116. pl. 3, f. 3.
  • †Acer bolanderi auct. non Lesquereux. Chaney & Axelrod. 1959 (part). 192. pl. 40, f. 7.
  • †Acer bolanderi auct. non Lesquereux. Wolfe. 1964. N29. pl. 5, f. 7.
  • †Acer chaneyi auct. non Knowlton. MacGinitie. 1933 (part). 61.
  • †Acer chaneyi auct. non Knowlton. Brooks. 1935 (part). 297. pl. 19, f. 5.
  • †Acer chaneyi auct. non Knowlton. Dorf. 1936 (part). 120.
  • †Acer chaneyi auct. non Knowlton. H.V. Smith. 1938a. 228.
  • †Acer merriami auct. non Knowlton. Dorf. 1936. 120. pl. 3, f. 8.
  • †Acer oregonianum auct. non Knowlton. H.V. Smith. 1938a. 228.
  • †Acer osmonti auct. non Knowlton. MacGinitie. 1933 (part). 62.
  • †Acer osmonti auct. non Knowlton. Brooks. 1935 298. pl. 20, f. 2.
  • †Acer osmonti auct. non Knowlton. LaMotte. 1936 (part). 137.
  • †Acer osmonti auct. non Knowlton. H.V. Smith. 1939 (part). 116. pl. 3, f. 6.

Type material

• Lectotype: USNM 8498 (fruit)
  • Repository: United States National Museum, Smithsonian Institution, National Mall, Washington DC, United States
    • Collected:1956

• Referred material: GSC 82972 (fruit)
  • Repository: Geological Survey of Canada, Ottawa, Ontario, Canada

• Referred material: MSUB 12 A&B, 27, 109, 115, 117 A&B, 126 A&B (leaves) 91A (fruit)
  • Repository: University of Michigan Museum of Paleontology, Ann Arbor, Washtenaw County, Michigan, United States

• Referred material: UCMG "unnumbered" (leaf) "unnumbered" (fruit)
  • Repository: Colorado University Museum of Natural History, Colorado University, Boulder, Boulder County, Colorado, United States

• Referred material: UCMP 858-860, 1221, 1222, 4382, 4388-4390, 5128-5132, 5406-5411, 6643, 6645-6649, 9073-9077, 9082, 9084 (leaves) 1224, 9078-9081, 9083 (fruits)
  • Repository: Museum of Paleontology, University of California Berkeley, Berkeley, Alameda County, California, Unites States

• Referred material: UMMP 18385, 20010, 21458, 69143-69145 (leaves)
  • Repository: University of Michigan Museum of Paleontology, Ann Arbor, Washtenaw County, Michigan, United States

• Referred material: USNM 396085, 396087 (leaves) 8499, 396082-396084, 396086, 372311 (fruits)
  • Repository: United States National Museum, Smithsonian Institution, National Mall, Washington DC, United States

Type locality

• Miocene, Aquitanian-Serravallian; Mascall Formation; Riverbank Locality V (UCMP P4128); Grant County, Oregon, United States"

Etymology

• "None given"

Distribution

Miocene

• Aquitanian
  • Little Butte Formation; Little Butte Creek (USGS 8914), near the Collawash River, Clackamas County Oregon, United States
• Burdigalian-Langhian
  • Latah Formation, Grand Coulee Florule; Grand Coulee (USGS 9078), Grant County, Washington, United States
  • Latah Formation, Spokane Florule; Brickyard Site (USGS 7884), Spokane, Spokane County, Washington, United States
• Burdigalian
  • Upper Cedarville Formation; '49 Camp V (San Antonio) (UCMP P336), Washoe County, Nevada, United States
  • Upper Cedarville Formation; '49 Camp II (UCMP 97), Washoe County, Nevada, United States
• Langhian-Serravallian (Barstovian)
  • Middlegate Formation; Middlegate (UCMP P5101), Churchill County, Nevada, United States
  • McLean Formation, Stewart Valley flora; Fingerrock Wash: Muller Amphitheater (UCMP PA99), Churchill County, Nevada, United States
• Aquitanian-Serravallian
  • Mascall Formation; Cummings Ranch (UCMP P4129); Grant County, Oregon, United States
  • Mascall Formation; Meadow Locality I (UCMP P4123); Grant County, Oregon, United States
  • Mascall Formation; Riverbank Locality IV (UCMP P4127); Grant County, Oregon, United States
  • Mascall Formation; Riverbank Locality V (UCMP P4128); Grant County, Oregon, United States
  • Mascall Formation; White Hills/Dayville (UCMP 3735); Grant County, Oregon, United States
• Langhian
  • Succor Creek Formation; Carter Creek (UMMP PT- II), near Nyssa, Malheur County, Oregon, United States
  • Succor Creek Formation; Devils Gate (MSUB 9/22/77 I), near Nyssa, Malheur County, Oregon, United States
  • Succor Creek Formation; Fenwick Gulch (UMMP PT-2), near Nyssa, Malheur County, Oregon, United States
  • Succor Creek Formation; Maple Ridge (UMMP PT-5A), near Nyssa, Malheur County, Oregon, United States
  • Succor Creek Formation; Quarry (UMMP PT- II), near Nyssa, Malheur County, Oregon, United States
  • Succor Creek Formation; Sheaville, Malheur County, Oregon, United States
  • Succor Creek; Succor Creek (USGS 1769), Malheur County, Oregon, United States
  • Succor Creek Formation; Upper Type Section (MSUB 9/22/77 II), Malheur County, Oregon, United States
• Serravallian
  • Trout Creek Formation; Trout Creek (UMMP PI·32·33), Trout Creek Mountains, Harney County, Oregon, United States
• "Middle Miocene"
  • Fraser Bend Formation, Chilcotin River flora (Hanceville flora) (GSC 6384), Chilcotin Group; Chilcotin River, British Columbia, Canada
• Tortonian
  • Ellensburg Formation; Ahtanum Ridge II (UCMP PA23), Yakima County, Washington, United States
  • Ellensburg Formation; Sand Pit II (UCMP PA22), Yakima County, Washington, United States
  • Ellensburg Formation; Tyrell (UCMP PA19), Yakima County, Washington, United States
  • Poison Creek Formation, Weiser Flora; Hog Creek (USGS 8923, UCMP 635), Washington County, Idaho, United States

References

Primary 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

• Axelrod, D.I. 1956. Mio-Pliocene floras from west-central Nevada. University of California Publications in Geological Sciences 33: 1–322, pl. 1-32. Reference page. 
• Axelrod, D.I. 1985. Miocene floras from the Middlegate Basin, West-Central Nevada. University of California Publications in Geological Sciences 129: 1–[280]. ISSN 0068-645X. Reference page. 
• Brooks, B.W. 1935. Fossil plants from Sucker Creek, Idaho. Annals of the Carnegie Museum 24: 275–336.  BHLReference page. 
• Chaney, R.W. 1927. Geology and paleontology of the Crooked River Basin, with special reference to the Bridge Creek flora. Publications of the Carnegie Institution of Washington 346: [45]–138.  PDF Reference page. 
• Chaney, R. & Axelrod, D. 1959. Miocene Floras of the Columbia Plateau: Part II. Systematic Considerations. Carnegie Institution of Washington. pp. 1–226.  HathiTrustReference page. 
• Dorf, E. 1936. A Late Tertiary flora from southwestern Idaho. Publications of the Carnegie Institution of Washington 476: 73–124, pl. 1–3. Reference page. 
• Graham, A.K. 1965. The Sucker Creek and Trout Creek Miocene Floras of Southeastern Oregon. Kent State University Bulletin 9(7-9): 1-147.  Reference page. 
• Knowlton, F.H. (1902). "Fossil flora of the John Day Basin, Oregon". Bulletin of the United States Geological Survey. C, Systematic Geology and Paleontology. Vol. 58 (204). pp. 1–153, pl. 1–17. doi:10.3133/b204. Reference page. 
• Meyer, H.W. 1973. The Oligocene Lyons flora of northwestern Oregon. The Ore Bin 35(3): 37-51.  PDF Reference page. 
• LaMotte, R.S. 1936. The upper Cedarville flora of northwestern Nevada and adjacent California. Publications of the Carnegie Institution of Washington 455: 59–142, pl. 1-14. https://yadi.sk/i/ReD80xSsFCXjzA. Reference page. 

• LaMotte, R.S. (1952). Catalogue of the Cenozoic plants of North America through 1950. Geological Society of America Memoirs. Vol. 51. Geological Society of America. pp. 1–378. doi:10.1130/MEM51.Reference page. 

• MacGinitie, H.D. 1933. The Trout Creek flora of southeastern Oregon. Publications of the Carnegie Institution of Washington 416: 21–68, pl. 1-16. HathiTrustReference page. 
• Smiley, C.J. 1963. The Ellensburg flora of Washington. University of California Publications in Geological Sciences 35(3): 159–276, pl. 1-17. Reference page. 
• Smith, H.V. 1938. Some new and interesting late Tertiary plants from Sucker Creek, Idaho-Oregon boundary. Bulletin of the Torrey Botanical Club 65(8): 557-564. doi:10.2307/2480794. https://www.jstor.org/stable/2480794.  Reference page. 
• Smith, H.V. 1938. Notes on fossil plants from Hog Creek in southwestern Idaho. Papers of the Michigan Academy of Science, Arts and Letters 23: 223–231. https://yadi.sk/i/2oF_OKnU3J2jPU.  Reference page. 
• Wolfe, J.A. 1964. Miocene floras from Fingerrock Wash, southwestern Nevada. United States Geological Survey:Professional Papers 454(N): 1–36. doi:10.3133/pp454N. Reference page. 

Links

• IFPNI International Editorial Board 2014–56852-1. The International Fossil Plant Names Index. Acer medianum. Published online. Accessed: 56852-1 2025 December 13.