2001
DOI: 10.1669/0883-1351(2001)016<0233:mjbabd>2.0.co;2
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Middle Jurassic (Bajocian and Bathonian) Dinosaur Megatracksites, Bighorn Basin, Wyoming, U.S.A

Abstract: Two previously unknown rare Middle Jurassic dinosaur megatracksites are reported from the Bighorn Basin of northern Wyoming in the Western Interior of the United States. These trace fossils occur in carbonate units once thought to be totally marine in origin, and constitute the two most extensive Middle Jurassic dinosaur tracksites currently known in North America. The youngest of these occurs primarily along a single horizon at or near the top of the ''basal member'' of the ''lower'' Sundance Formation, is mi… Show more

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Cited by 63 publications
(10 citation statements)
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“…It suggests water in movement and a soft ground on which tracks have been preserved. Subaerial exposure may be related to variations in tides, and probably wind action (Kvale et al, 2001;Pazos et al, 2012), although the tracks may have been preserved in the presence of a film of water. Sparite patches indicate obliterated porosity.…”
Section: Discussionmentioning
confidence: 99%
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“…It suggests water in movement and a soft ground on which tracks have been preserved. Subaerial exposure may be related to variations in tides, and probably wind action (Kvale et al, 2001;Pazos et al, 2012), although the tracks may have been preserved in the presence of a film of water. Sparite patches indicate obliterated porosity.…”
Section: Discussionmentioning
confidence: 99%
“…Although the origin of the tracks is unknown and further studies are needed, their particular morphology allows them to be compared to those associated with swim tracks (e.g., Kvale et al, 2001;Ezquerra et al, 2007;Vila et al, 2014). 6.10.…”
Section: Remarksmentioning
confidence: 99%
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“…Structures suggesting cracked microbial mats of the ichnoassemblage II in Maimar a and Quebrada del Tap on are indicative of dry phases that produce mat decay in the mudflat area (Gehling 1999;Catuneanu 2006). The relevant role of microbial mats in track preservation of peritidal environments has been previously observed (e.g., Kvale et al 2001;Marty, Strasser, and Meyer 2009;Carmona et al 2011Carmona et al , 2012Bournod 2011, 2012;Fern andez and Pazos 2013).…”
Section: Environmental and Ichnofacies Implicationsmentioning
confidence: 70%
“…F I G U R E 2 Chronostratigraphic framework of Middle and Upper Jurassic strata and unconformities (J-1 through J-5) in southern and eastern Wyoming, the Bighorn, and Wind River basins. Data from Peterson (1954aPeterson ( , 1954b, Pipiringos (1957), Pipiringos and O'Sullivan (1978), Imlay (1952Imlay ( , 1967Imlay ( , 1980, Kvale et al (2001), Danise and Holland (2017), Holland and Wright (2020). The J-3 does not extend into Wyoming.…”
Section: Introductionmentioning
confidence: 99%