Dickinson Member (Woodland) (Oligocene of the United States)
Also known as Obritsch Ranch; Fitterer Ranch; Fitterer Bed Quarry
Where: Stark County, North Dakota (46.9° N, 102.8° W: paleocoordinates 48.0° N, 94.2° W)
• coordinate based on political unit
When: Brule Formation, Orellan (33.9 - 33.3 Ma)
• member-level stratigraphic resolution
Environment/lithology: terrestrial
Primary reference: J. W. Hoganson and G. E. Lammers. 1992. Vertebrate fossil record, age, and paleoenvironmental setting of the Brule Formation (Oligocene) in North Dakota. Proceedings of the F. D. Holland, Jr., Geological Symposium 243-255 [J. Alroy/J. Alroy/J. Marcot]more details
PaleoDB collection 17101: authorized by John Alroy, entered by John Alroy on 27.09.1993
Creative Commons license: CC BY (attribution)
Taxonomic list
• "channel sandstone facies"
said to overlie the "White marker" = "Greenish band" of Douglass 1909 by Stevens and Stevens 1996
Fitterer Ranch channel sandstone is in a reversed polarity interval: Prothero 1996c
Fitterer Ranch is in SE 1/4 sec 7 T137N R97W, i.e., at least 5 mi NNW of Little Badlands, 13 mi. S and 8 mi. W of Dickinson
said to overlie the "White marker" = "Greenish band" of Douglass 1909 by Stevens and Stevens 1996
Fitterer Ranch channel sandstone is in a reversed polarity interval: Prothero 1996c
Fitterer Ranch is in SE 1/4 sec 7 T137N R97W, i.e., at least 5 mi NNW of Little Badlands, 13 mi. S and 8 mi. W of Dickinson
Show authors, comments, and common names
| Mammalia | |
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Mesohippus bairdi Leidy 1850 anchitheriine horse | |
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Metamynodon sp. Scott and Osborn 1887 odd-toed ungulate | |
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Subhyracodon occidentalis Leidy 1850 rhinoceros | |
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Bothriodon sp. Aymard 1846 anthracothere | |
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Archaeotherium mortoni Leidy 1850 even-toed ungulate may include specimen of Peterson 1909 from "Oreodon beds near Dickinson in the Little Bad-lands"
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Osbornodon renjiei n. sp.6 Wang 1994 canid Fitterer Channel on Leo Fitterer Ranch; this is unit 5 of Skinner 1951, and some material is from 15 ft above base of channel
Hesperocyon gregarius6 Cope 1873 canid 10, 15, and 20 ft above base of channel; 50 ft above base of banded zone; Fitterer Channel; base of nodular zone; above nodular zone; and level 2B of Skinner 1951
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Oligoryctes altitalonidus1 Clark 1936 placental "lower part of the Brule Formation at Fitterer Ranch... channel deposit... late Orellan"
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Palaeolagus haydeni Leidy 1856 rabbit | |
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Ischyromys typus Leidy 1856 rodent | |
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Agnotocastor praetereadens Stirton 1935 beaver
Oligotheriomys primus n. sp.2 Korth 1998 beaver from "Brule... Fitterer Ranch, sec. 17, T137N, R97W"
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