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Orella Member

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Journal Article
Published: 01 April 1989
Rocky Mountain Geology (1989) 27 (1): 15–20.
Journal Article
Published: 01 September 1966
Journal of Paleontology (1966) 40 (5): 1200–1210.
...John A. Howe Abstract The genus Ischyromys in the Brule Formation, Oligocene, Nebraska, appears to be monophyletic and ranges from the lower Orella Member into the basal Whitney Member. The Whitney specimen is the first to be recovered from unreworked sediments in that member in Nebraska. Changes...
Journal Article
Journal: GSA Bulletin
Published: 01 October 1987
GSA Bulletin (1987) 99 (4): 445–462.
...WARREN BARRASH; ROGER H. MORIN Abstract This study defines the hydrostratigraphy of a portion of the upper Orella Member (and perhaps lowermost Whitney Member) of the Brule Formation, an Oligocene siltstone that is used as an aquifer where wells intercept zones of secondary permeability. Drilling...
Journal Article
Journal: The Leading Edge
Published: 01 August 2014
The Leading Edge (2014) 33 (8): 890–902.
... of these processes tends to be iterative in nature. They can be useful in integrating the expertise of various team members to synchronize a team effort to a common goal. The first law of geography is “everything is related to everything else, but near things are more related than distant things” ( Tobler, 1970...
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Journal Article
Published: 27 November 2014
Journal of the Geological Society (2015) 172 (2): 264–271.
...‰ ( Nieto-Moreno et al. 2013 a ). Considering previously reported end-member values of −36‰ for C 3 and −21‰ for C 4 vegetation (e.g. Castañeda et al. 2009 ), our reconstruction indicates a predominant C 3 plant type during the last millennium, dominated by trees, shrubs, cool-season grasses...
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Journal Article
Journal: PALAIOS
Published: 01 October 2010
PALAIOS (2010) 25 (10): 682–687.
... over numerous years. Leptomeryx specimens analyzed were from either the Peanut Peak Member or the Big Cottonwood Creek Member of the Chadron Formation, or from the Orella Member of the Brule Formation, based on work by LaGarry (1998) and Terry (1998) in their revisions and correlations...
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Series: GSA Special Papers
Published: 01 January 2008
DOI: 10.1130/2008.2435(08)
...; Toston Formation, Montana (all Chadronian); Cedar Creek Member, White River Formation, Colorado; Orella Member, Brule Formation, Nebraska; Scenic Member, Brule Formation, South Dakota; Toston Formation, Montana (all Orellan). Description and Discussion— FLFO 5976 (UCM 99590), a right dentary fragment...
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Journal Article
Journal: GSA Bulletin
Published: 13 June 2019
GSA Bulletin (2020) 132 (1-2): 373–388.
... midcontinent across the Eocene-Oligocene boundary : Palaeogeography, Palaeoclimatology, Palaeoecology , v. 168 , no. 1-2 , p. 1 – 38 , https://doi.org/10.1016/S0031-0182(00)00248-0 . Terry , D.O. , and LaGarry , H.E. , 1998 , The Big Cottonwood Creek Member: A new member of the Chadron...
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Journal Article
Published: 01 January 2012
Rocky Mountain Geology (2012) 47 (2): 113–132.
... of the Chadron Formation, Wyoming (late early Chadronian); Florissant Formation, Colorado (middle to late Chadronian); Cedar Creek Member, White River Formation, northeastern Colorado (early Orellan); Orella Member, Brule Formation, Nebraska (early through late Orellan); Scenic Member, Brule Formation, South...
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Journal Article
Published: 11 September 2017
Geological Magazine (2018) 155 (1): 203–208.
... Oligocene Orella and Whitney member, Brule Formation, White River Group, Toadstool Geology Park, Nebraska. Master of Science thesis, Temple University, Philadelphia, USA. Published thesis. MacFadden , B. & Cerling , T. E. 1996 . Mammalian herbivore communities, ancient feeding ecology...
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Journal Article
Journal: AAPG Bulletin
Published: 01 November 1947
AAPG Bulletin (1947) 31 (11): 1913–1935.
... Eocene (Domengine) fossils have been reported not far below the base of the Sespe so that most of the dark shale and speckled siltstone section is middle Eocene. It contains abundant “worm tracks” like the “worm impression shale member” 24 170–800 feet below the top of the Llajas in the Simi field...
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