Acer schorni

†Acer schorni

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 schorni

Name

†Acer schorni J.A.Wolfe & Tanai J. Fac. Sci. Hokkaido Univ., Ser. 4, Geol., 22(1): 172, 178, 180 pl. 54. figs. 8, 9; text-fig. 18B. Feb 1987

Synonyms

• Pro Parte
  • †Acer arida auct. non Axelrod. Axelrod. 1956 (part). 307. pl. 31, f. 1-4.
  • †Acer bolonderi auct. non Lesquereux. Axelrod. 1944. 142.
  • †Acer bolonderi auct. non Lesquereux. Chaney & Axelrod. 1959 (part), 192. pl. 39, f. 7-9.
  • †Acer bolonderi auct. non Lesquereux. Graham. 1965. 66. pl. 5, f. 5.
  • †Acer columbianum auct. non Chaney & Axelrod. Chaney & Axelrod 1959 (part, nontypic). 192. pl. 40, f. 5.
  • †Acer minor auct. non Knowlton. Knowlton. 1902 (part, nontypic). 76. pl. 14, f. 2.
  • †Quercus prelobota auct. non Condit. Axelrod. 1958. 129. pl. 23, f. 10.
  • †Acer tyrelli auct. non Smiley. Axelrod. 1985 (part). 176. pl. 14, f. 4.

Type material

• Holotype: UMMP 44835 (leaf)
  • Repository: University of Michigan Museum of Paleontology, Ann Arbor, Washtenaw County, Michigan, United States

• Paratypes: CAS 61357 (leaf)
  • Repository: Geology collections, California Academy of Sciences, Golden Gate Park, San Francisco, California, United States

• Paratypes: MSUB 94, 95, 99, 107 (fruit)
  • Repository: University of Michigan Museum of Paleontology, Ann Arbor, Washtenaw County, Michigan, United States

• Paratypes: UCMP 3191, 4383-4387, 4392, 4395, 6670, 9191-9194 (fruits)
  • Repository: Museum of Paleontology, University of California Berkeley, Berkeley, Alameda County, California, Unites States

• Paratypes: UMMP 69158, 69159 (leaves) 69155-69157, (fruits)
  • Repository: University of Michigan Museum of Paleontology, Ann Arbor, Washtenaw County, Michigan, United States

• Paratype: UOCM f-33534 (fruit)
  • Repository: Museum of Natural and Cultural History, University of Oregon, Eugene, Lane County, Oregon, United States

• Paratypes: USNM 42462 (Cf.) (leaf) 8501 A&B, 396203-396205 (fruits)
  • Repository: United States National Museum, Smithsonian Institution, National Mall, Washington DC, United States

Type locality

• Miocene, Serravallian (Barstovian NALMA); Trout Creek Formation; Trout Creek (UMMP PI·32·33), Trout Creek Mountains, Harney County, Oregon, United States

Etymology

• "More than any other curator, Howard E. Schorn has contributed to the present study of Acer."

Distribution

Miocene

• Aquitanian-Serravallian (Hemingfordian-Barstovian NALMA)
  • Mascall Formation; White Hills/Dayville (Ashwill f-27); Grant County, Oregon, United States
  • Mascall Formation; Riverbank (USGS 2699); Grant County, Oregon, United States
  • Mascall Formation; Stinking Water Creek II (UCMP P4120); Harney County, Oregon, United States
• Burdigalian (late Hemingfordian NALMA)
  • Buffalo Canyon Formation; Buffalo Canyon (UCMP PA-291, "UCMP 6101"), Churchill County, Nevada, United States
• Langhian-Serravallian (Barstovian NALMA)
  • McLean Formation, Fingerrock Wash Flora; Muller Amphitheater (UCMP PA99), Fingerrock Wash, Mineral County, Nevada, United States
  • 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; Mckenzie Ranch (UMMP PT-10), near Nyssa, Malheur County, Oregon, United States
  • Middlegate Formation; Middlegate (UCMP P5101), Churchill County, Nevada, United States
• Serravallian (Barstovian NALMA)
  • Trout Creek Formation; Trout Creek (UMMP PI·32·33), Trout Creek Mountains, Harney County, Oregon, United States
• Tortonian
  • Poison Creek Formation, Weiser Flora; Hog Creek (USGS 8923, UCMP 635), Washington County, Idaho, United States
• Messinian
  • Hunter Creek Sandstone, Verdi Flora; Hazen (-), Verdi Basin, Churchill County, Nevada, United States
  • Hunter Creek Sandstone, Verdi Flora; Verdi (UCMP P102), Southern Pacific Railroad cut, West of Mogul, Verdi Basin, Washoe County, Nevada, 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. 1944. The Alvord Creek flora. Publications of the Carnegie Institution of Washington 553: 225–262, pl. 40–46. ISSN 0099-4936.  HathiTrust Reference page. 
• 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. 1958. The Pliocene Verdi flora of Western Nevada. University of California Publications in Geological Sciences 34(2): 91–160, pl. 13-23. ISSN 0068-645X. https://archive.org/details/plioceneverdiflo00axel/page/n5/mode/1up.  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. 
• Chaney, R. & Axelrod, D. 1959. Miocene Floras of the Columbia Plateau: Part II. Systematic Considerations. Carnegie Institution of Washington. pp. 1–226.  HathiTrustReference 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. 

Links

• IFPNI International Editorial Board 2014–2026. The International Fossil Plant Names Index. Acer schorni. Published online. Accessed: 2026 January 17.