An unusual association of hadrosaur and therizinosaur tracks within Late Cretaceous rocks of Denali National Park, Alaska

Abstract We report details of a unique association of hadrosaur and therizinosaur tracks found in the Late Cretaceous lower Cantwell Formation, Denali National Park, central Alaska Range, Alaska. This rock unit is now well-documented as a source of thousands of fossil footprints of vertebrates such...

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Autores principales:	Anthony R. Fiorillo, Paul J. McCarthy, Yoshitsugu Kobayashi, Carla S. Tomsich, Ronald S. Tykoski, Yuong-Nam Lee, Tomonori Tanaka, Christopher R. Noto
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2018
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/7d39e122c5dd4f94b56b39f301dcacf9
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spelling	oai:doaj.org-article:7d39e122c5dd4f94b56b39f301dcacf92021-12-02T15:07:47ZAn unusual association of hadrosaur and therizinosaur tracks within Late Cretaceous rocks of Denali National Park, Alaska10.1038/s41598-018-30110-82045-2322https://doaj.org/article/7d39e122c5dd4f94b56b39f301dcacf92018-08-01T00:00:00Zhttps://doi.org/10.1038/s41598-018-30110-8https://doaj.org/toc/2045-2322Abstract We report details of a unique association of hadrosaur and therizinosaur tracks found in the Late Cretaceous lower Cantwell Formation, Denali National Park, central Alaska Range, Alaska. This rock unit is now well-documented as a source of thousands of fossil footprints of vertebrates such as fishes, pterosaurs, and avialan and non-avialan dinosaurs. The lower Cantwell Formation in this area consists of numerous fining-upward successions of conglomerates and pebbly sandstones, cross-stratified and massive sandstones, interbedded sandstones and siltstones, organic-rich siltstones and shales, and rare, thin, bentonites, typically bounded by thin coal seams, and it contains a diverse fossil flora. We report the first North American co-occurrence of tracks attributable to hadrosaurs and therizinosaurs in the lower Cantwell Formation. Although previously un-reported in North America, this association of hadrosaur and therizinosaur tracks is more characteristic of the correlative Nemegt Formation in central Asia, perhaps suggesting that parameters defining the continental ecosystem of central Asia were also present in this part of Alaska during the Latest Cretaceous.Anthony R. FiorilloPaul J. McCarthyYoshitsugu KobayashiCarla S. TomsichRonald S. TykoskiYuong-Nam LeeTomonori TanakaChristopher R. NotoNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 8, Iss 1, Pp 1-12 (2018)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Anthony R. Fiorillo Paul J. McCarthy Yoshitsugu Kobayashi Carla S. Tomsich Ronald S. Tykoski Yuong-Nam Lee Tomonori Tanaka Christopher R. Noto An unusual association of hadrosaur and therizinosaur tracks within Late Cretaceous rocks of Denali National Park, Alaska
description	Abstract We report details of a unique association of hadrosaur and therizinosaur tracks found in the Late Cretaceous lower Cantwell Formation, Denali National Park, central Alaska Range, Alaska. This rock unit is now well-documented as a source of thousands of fossil footprints of vertebrates such as fishes, pterosaurs, and avialan and non-avialan dinosaurs. The lower Cantwell Formation in this area consists of numerous fining-upward successions of conglomerates and pebbly sandstones, cross-stratified and massive sandstones, interbedded sandstones and siltstones, organic-rich siltstones and shales, and rare, thin, bentonites, typically bounded by thin coal seams, and it contains a diverse fossil flora. We report the first North American co-occurrence of tracks attributable to hadrosaurs and therizinosaurs in the lower Cantwell Formation. Although previously un-reported in North America, this association of hadrosaur and therizinosaur tracks is more characteristic of the correlative Nemegt Formation in central Asia, perhaps suggesting that parameters defining the continental ecosystem of central Asia were also present in this part of Alaska during the Latest Cretaceous.
format	article
author	Anthony R. Fiorillo Paul J. McCarthy Yoshitsugu Kobayashi Carla S. Tomsich Ronald S. Tykoski Yuong-Nam Lee Tomonori Tanaka Christopher R. Noto
author_facet	Anthony R. Fiorillo Paul J. McCarthy Yoshitsugu Kobayashi Carla S. Tomsich Ronald S. Tykoski Yuong-Nam Lee Tomonori Tanaka Christopher R. Noto
author_sort	Anthony R. Fiorillo
title	An unusual association of hadrosaur and therizinosaur tracks within Late Cretaceous rocks of Denali National Park, Alaska
title_short	An unusual association of hadrosaur and therizinosaur tracks within Late Cretaceous rocks of Denali National Park, Alaska
title_full	An unusual association of hadrosaur and therizinosaur tracks within Late Cretaceous rocks of Denali National Park, Alaska
title_fullStr	An unusual association of hadrosaur and therizinosaur tracks within Late Cretaceous rocks of Denali National Park, Alaska
title_full_unstemmed	An unusual association of hadrosaur and therizinosaur tracks within Late Cretaceous rocks of Denali National Park, Alaska
title_sort	unusual association of hadrosaur and therizinosaur tracks within late cretaceous rocks of denali national park, alaska
publisher	Nature Portfolio
publishDate	2018
url	https://doaj.org/article/7d39e122c5dd4f94b56b39f301dcacf9
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An unusual association of hadrosaur and therizinosaur tracks within Late Cretaceous rocks of Denali National Park, Alaska

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