Also known as Longview Ranch Airport Section
Where: Wheeler County, Oregon (44.7° N, 119.7° W: paleocoordinates 44.3° N, 109.5° W)
• coordinate estimated from map
• outcrop-level geographic resolution
When: Turtle Cove Member (John Day Formation), Geringian (30.8 - 26.3 Ma)
• bracketed by AA dates of 28.7 Ma (Picture Gorge Tuff) and 27.5 Ma (Picture Gorge Ignimbrite); average is 28.1
• member-level stratigraphic resolution
Environment/lithology: terrestrial; lithology not reported
Size class: macrofossils
Primary reference: L. B. Albright, M. O. Woodburne, T. J. Fremd, C. C. Swisher, B. J. MacFadden and G. R. Scott. 2008. Revised chronostratigraphy and biostratigraphy of the John Day Formation (Turtle Cove and Kimberly Members), Oregon, with implications for updated calibration of the Arikareean North American land mammal age. 116(3):211-237 [J. Alroy/J. Alroy]more details
Purpose of describing collection: biostratigraphic analysis
PaleoDB collection 17537: authorized by John Alroy, entered by John Alroy on 26.03.1995, edited by Clint Boyd
Creative Commons license: CC BY (attribution)
Taxonomic list
•"Nothocyon sp." is also listed but omitted (understandably) by Albright et al. 1994
•Fremd et al. list the following dubious oreodonts that are omitted by Albright et al. 2008: Eucrotaphus trigonocephalus, "Mesoreodon major" = Merycoidodon major, and "Desmatochoerus curvidens" = D. megalodon
Mammalia | |
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Meniscomys uhtoffi Rensberger 1983 mountain beaver | |
Alwoodia magna Rensberger 1983 rodent | |
Capacikala gradatus Cope 1878 beaver | |
Pleurolicus sulcifrons Cope 1878 pocket gopher | |
"Florentiamys lulli" = Jimomys lulli2
"Florentiamys lulli" = Jimomys lulli2 Wood 1936 rodent listed as "Florentiamys" by Albright et al. 2008
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Daphoenus sp. Leidy 1853 bear-dog | |
Nimravus brachyops Cope 1878 false sabre-tooth | |
Enhydrocyon stenocephalus, Philotrox condoni, Mesocyon brachyops, Cormocyon copei, Rhizocyon oregonensis
Enhydrocyon stenocephalus Cope 1879 canid
Philotrox condoni Merriam 1906 canid
Mesocyon brachyops Merriam 1906 canid | |
Eporeodon occidentalis Marsh 1873 oreodont
Oreodontoides oregonensis Thorpe 1921 oreodont | |
"Nanotragulus planiceps" = Hypertragulus planiceps, Hypertragulus hesperius
"Nanotragulus planiceps" = Hypertragulus planiceps Sinclair 1905 ruminant
Hypertragulus hesperius Hay 1902 ruminant | |
Archaeotherium sp. Leidy 1850 even-toed ungulate | |
Miohippus intermedius2 Osborn and Wortman 1895 anchitheriine horse listed as "Miohippus" by Albright et al. 2008
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