Pitkin post office, Washington County, Arkansas[3]
Named by
George Irving Adams and Edward Oscar Ulrich
The Pitkin Formation, or Pitkin Limestone, is a fossiliferous geologic formation in northern Arkansas that dates to the Chesterian Series of the late Mississippian.[4] This formation was first named the "Archimedes Limestone" by David Dale Owen in 1858, but was replaced in 1904.[3] The Pitkin conformably overlies the Fayetteville Shale and unconformably underlies the Pennsylvanian-age Hale Formation. Some workers have considered the shales at the top of the Pitkin Formation to be a separate formation called the Imo Formation. More recently, others have considered the Imo to be informal member of the Pitkin Formation.
^ abEaston, William H., The Fauna of the Pitkin Formation of Arkansas., Journal of Paleontology: vol. 17:2. March, 1943.
^McFarland, John David (2004) [1998]. "Stratigraphic summary of Arkansas" (PDF). Arkansas Geological Commission Information Circular. 36: 12–13. Archived from the original (PDF) on 2016-12-21. Retrieved 2018-05-31.
^ abAdams, G.; Ulrich, E. (1904). "Zinc and lead deposits of northern Arkansas". U.S. Geological Survey Professional Paper. 24: 27, 109.
^Various Contributors to the Paleobiology Database. "Fossilworks: Gateway to thefix Paleobiology Database". Retrieved 17 December 2021.
The PitkinFormation, or Pitkin Limestone, is a fossiliferous geologic formation in northern Arkansas that dates to the Chesterian Series of the late Mississippian...
community in Vernon Parish The PitkinFormation, a sedimentary rock layer A character played by Sir Norman Wisdom Pitkin Publishing, an imprint of The...
late Mississippian. The Imo is considered to be a member of the upper PitkinFormation, and is the most recent Mississippian age rock in Arkansas. The Imo...
Mississippian-age PitkinFormation. The upper member, the Prairie Grove Member, is predominately limestone and conformably underlies the Bloyd Formation. Named by...
been found in Barkip, Scotland, Bundock and Laurel Formations, Australia and in the PitkinFormation (Carboniferous period) in Arkansas, United States...
monoplacophoran in the family Tryblidiidae. Easton W. H. (1943). The Fauna of the PitkinFormation of Arkansas. Journal of Paleontology 17(2):125-154. v t e...
in Arkansas that is now abandoned and replaced by the Bloyd Formation and the Hale Formation. It preserves fossils dating back to the Pennsylvanian period...
Database, accessed 25 August 2009. Easton W. H. 1943. The Fauna of the PitkinFormation of Arkansas. Journal of Paleontology 17(2):125-154. Ulrich E. O. &...
contained in them. At the time of founding, the imprints included Phillimore, Pitkin Publishing, Spellmount, Stadia, Sutton Publishing, Tempus Publishing and...
Paleobiology Database. "Fossilworks: Gateway to the Paleobiology Database". Retrieved 17 December 2021. List of Formations in the National Geologic Map Database...
media related to Fayetteville Shale. The Fayetteville Shale is a geologic formation of Mississippian age (354–323 million years ago) composed of tight shale...
from the Eocene and Oligocene Pozo Formation, Oligocene Chambira Formation (Peru) and Miocene Solimões Formation (Brazil) by Klaus et al. (2017), representing...
Lake. These reddish crags are Maroon Formation. South end of Sievers Mountain Mountains portal Mountains of Pitkin County, Colorado "Sievers Mountain -...
California, Berkeley. Her former advisor is Hanna Pitkin. She has taught courses on nationalism, identity formation, power and resistance, and citizenship. Her...
about half a kilometer (0.3 miles). The mountains are on the border between Pitkin County and Gunnison County, Colorado, United States, about 19 kilometres...
update: 6 August 2020 Geologic map of the Marble quadrangle, Gunnison and Pitkin Counties, Colorado, Gaskill, D.L., and Godwin, L.H., 1966. USGS Geologic...
Skiri Pawnee. p. 252. University of Nebraska Press. ISBN 0-8032-1926-1 Pitkin, H. (1985). Wintu Dictionary. University of California Press. pp. 890. ISBN 0-520-09613-4...
2023-03-01. Sir Thomas Butler (1989). The Crown Jewels and Coronation Ceremony. Pitkin. p. 6. ISBN 978-0-85372-467-4. Pardieu, V.; Farkhodova, T. (Summer 2019)...
pp. 131–132. "Frederick Walker Pitkin". National Governors Association. Retrieved February 10, 2023. "Frederick W. Pitkin". Colorado State Archives. Retrieved...
Trooping the Colour, The Regiments. Norwich: Jarrold Publishing, 2005. A Pitkin Guide. (This revised edition published 1990. Originally published by Macmillan...
PMID 12361932. Archived from the original on 2012-07-07. O'Donnell P, Buxton PJ, Pitkin A, Jarvis LJ (April 2000). "The magnetic resonance imaging appearances of...
Global Information