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Agate Fossil Beds National Monument

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Journal Article
Published: 01 December 1996
Rocky Mountain Geology (1996) 31 (1): 35–48.
Series: GSA Special Papers
Published: 01 January 1990
DOI: 10.1130/SPE244-p69
... ostracods, pulmonate gastropods, diatoms, and charophyte algae. These tuffaceous waterhole muds intertongue with fluvial volcaniclastic sediments and are the locus of major mammalian bone beds, the best known preserved at Agate Fossil Beds National Monument. Bones of chalicothere, rhinoceros, and entelodont...
Series: GSA Special Papers
Published: 27 November 2018
DOI: 10.1130/2018.2535(21)
EISBN: 9780813795355
... 1938 California NPS Agate Fossil Beds National Monument Miocene mammals Authorized in 1965; established 1997 Nebraska NPS Florissant Fossil Beds National Monument Eocene to Oligocene plants, insects, and vertebrates 1969 Colorado NPS Fossil Butte National Monument Eocene plants...
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Series: GSA Special Papers
Published: 01 January 2008
DOI: 10.1130/2008.2435(09)
... characteristics of an assemblage of specimens chosen by National Park Service personnel as being representative of various types of fossil wood preserved at Florissant Fossil Beds National Monument. These samples include material from some of the best-known specimens exposed near the visitor center. Analytical...
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Journal Article
Journal: Geosphere
Published: 01 June 2013
Geosphere (2013) 9 (3): 557–571.
... of the tallest monoliths of the world, with a maximum height of 433 m. Peña de Bernal was recently declared Intangible Cultural Heritage of Humanity Patrimony by United Nations Educational, Scientific, and Cultural Organization (UNESCO). In spite of being both a natural and cultural monument, little is known...
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Journal Article
Published: 01 October 2016
Italian Journal of Geosciences (2016) 135 (3): 512–525.
...Alessandro Incarbona; Antonio Contino; Mauro Agate; Sergio Bonomo; Federico Calvi; Enrico Di Stefano; Maria Stella Giammarinaro; Attilio Priulla; Rodolfo Sprovieri Abstract Marine deposits of the Palermo Plain were historically relevant for the Quaternary Period definition. Here we show...
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Journal Article
Published: 01 March 2008
South African Journal of Geology (2008) 111 (1): 53–66.
... into a planar cross bedded pebble sand also approximately 0.5 m thick. Foreign clasts consist of brown and grey quartzite, blue and grey/blue chert, vein quartz, dark banded agate, and fossil wood. This well-sorted medium to large pebble gravel is devoid of any andesite clasts (Figure 6 ). Most pebbles...
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Journal Article
Journal: AAPG Bulletin
Published: 01 June 2016
AAPG Bulletin (2016) 100 (6): 1033–1059.
... to upper Turonian Frontier Formation from the Uinta Basin, Utah and Colorado. Eight carbonate occurrences, all encountered within distal delta-front facies (thin-bedded sandstones and siltstones), were sampled at outcrop locations from the southern and eastern margins of Dinosaur National Monument. Seven...
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Journal Article
Journal: Geosphere
Published: 08 May 2019
Geosphere (2019) 15 (4): 1128–1139.
... ; Harshbarger et al., 1957 ). At its type section a few kilometers east of Canyon DeChelly National Monument, Arizona at the Sonsela Buttes ( Figs. 1 and 2 ), the Sonsela Sandstone bed was thought to overly the lower part of the Petrified Forest Member ( Akers et al., 1958 ; Repenning et al., 1969...
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Journal Article
Published: 01 October 2019
Italian Journal of Geosciences (2019) 138 (3): 456–470.
... exploitation indicate some extraction sites. All the investigated rocks (both from monumental portals of Urbino and geological outcrops) consist of fine- to medium-grained sandstones with a variable content of bioclasts. Two different groups were recognized (using the petrographic Q-F-R classification diagram...
FIGURES | View All (8)
Series: GSA Field Guide
Published: 01 January 2014
DOI: 10.1130/2014.0036(03)
EISBN: 9780813756363
... due to differential weathering. Trace fossils can also be seen in cross-sectional views. West (the side of the building toward the Lincoln Monument) railings have particularly good examples of the ichnofossil Eione (also known as Margaritichnus ) with characteristic annulations (Fig. 10...
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Series: Geological Society, London, Special Publications, Geological Society, London, Special Publications
Published: 01 January 2007
DOI: 10.1144/GSL.SP.2007.273.01.19
EISBN: 9781862395213
... with a recent palaeontological discovery in Canada that confirms two traditional First Nations names for fossil locales. In the Western Hemisphere, conspicuous fossil remains of creatures of the Mesozoic (245 to 66 million years ago) and Cenozoic (66 million years ago until the last Ice Age, about 10 000...
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Series: Geological Society, London, Special Publications, Geological Society, London, Special Publications
Published: 01 January 2010
DOI: 10.1144/SP341.8
EISBN: 9781862395893
... green clays and marls into a unit of platy, bituminuous limestone beds, followed by brown marly clays, grey marls and limestone at the top. A total of 155 samples were collected from the GM3 section interval 47–83 m at sample spacing of 10–25 cm. Section KB3 (Kuthrubbah: 31°09′13′′N; 35°36′06′′E...
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Journal Article
Published: 01 July 2017
The Canadian Mineralogist (2017) 55 (4): 701–723.
... layers by structural, textural, or compositional properties ( Fisher & Schminke 1984 ). Here, we distinguish separate beds by their difference of competence. precious opal Ethiopia pedogenesis plant fossils The genesis of amorphous varieties of silica, such as opals, is intricate...
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Series: GSA Field Guide
Published: 01 January 2009
DOI: 10.1130/2009.fld015(20)
EISBN: 9780813756158
... (Day 3) will examine voluminous ash-flow tuff deposits and post-collapse rhyolite domes associated with each respective eruptive center. Field stops within the Painted Hills and Sheep Rock Units of the John Day Fossil Beds National Monument on Day 2 will provide the opportunity to examine tuffs...
Series: SEPM Special Publication, SEPM Special Publication
Published: 01 January 2007
DOI: 10.2110/pec.07.88.0345
EISBN: 9781565762909
... to Ruthann Knudson for information on Daemonelix and Paleocastor and to the staff at Agate Fossil Beds National Monument for their help. Thank you to Mary Kraus for helpful editing and to Cesar Nufio for his entomological expertise and help with statistical analyses. This research was made possible...
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Journal Article
Published: 01 January 2003
Rocky Mountain Geology (2003) 38 (1): 1–27.
... in the Pierre Shale and has been used to correlate the exposures of marine shale across this region ( Scott and Cobban, 1965 ; Kennedy et al., 1992 ). The highest ammonite zone represented in the basin is the Hoploscaphites birkelundae Zone, based on fossils collected in the uppermost Pierre Shale near Agate...
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Journal Article
Published: 01 January 2003
Rocky Mountain Geology (2003) 38 (1): 101–120.
... bed dates, and biostratigraphically significant dinosaur and mammal sites on the surface to the palynology and magnetostratigraphy obtained from the two cored wells. We also recorded the lithology and sedimentary facies of the fossil-bearing exposures, measured stratigraphic sections when possible...
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Journal Article
Published: 01 November 2000
Journal of Paleontology (2000) 74 (6): 1065–1071.
... sp. nov., a new fossil tree fern from South-eastern Queensland, Australia . Australian Systematic Botany , 4 : 421 - 432 . Walker , M. V. 1938 . Evidence of Triassic insects in the Petrified Forest National Monument, Arizona . U.S. National Museum Proceedings , 88 : 137 - 141...
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Journal Article
Journal: PALAIOS
Published: 01 April 2001
PALAIOS (2001) 16 (2): 148–160.
.... 237 – 242 . Hunt , R.M. , Jr , and Skolnick , R. , 1996 . The giant mustelid Megalictis from the early Miocene carnivore dens at Agate Fossil Beds National Monument, Nebraska; Earliest evidence of dimorphism in New World Mustelidae (Carnivora, Mammalia) : Contributions to Geology...
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