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Fossil eggshells from Utah's Cedar Mountain Formation include Cretaceous period eggs from 3 feathered bird-like dinosaurs, 2 herbivorous dinosaurs, and a crocodile-like species found for the first time outside Europe

02.26.25 | PLOS

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Fossil eggshell diversity of the Mussentuchit Member, Cedar Mountain Formation, Utah
Graphical abstract of the manuscript. Credit: Ryan Tucker and Josh Hedge, CC-BY 4.0 (https://creativecommons.org/licenses/by/4.0/)

Fossil eggshells from Utah's Cedar Mountain Formation include Cretaceous period eggs from 3 feathered bird-like dinosaurs, 2 herbivorous dinosaurs, and a crocodile-like species found for the first time outside Europe

Article URL : https://plos.io/42XpPYx

Article title: Fossil eggshell diversity of the Mussentuchit Member, Cedar Mountain Formation, Utah

Author countries: U.S., South Africa

Funding: This research was supported by Canyonlands Natural History Association, Global Creatures, and MagicSpace Entertainment (2014–2015) and the National Science Foundation (awards 1925973 to LEZ and 1925884 to PJM). Any opinions, findings, conclusions, or recommendations expressed in this material are those of the author(s) and do not necessarily reflect the views of the National Science Foundation or other funding agencies. https://www.nsf.gov https://cnha.org https://global-creatures.com https://www.magicspace.net .

PLOS One

10.1371/journal.pone.0314689

Fossil eggshell diversity of the Mussentuchit Member, Cedar Mountain Formation, Utah

26-Feb-2025

The authors have declared that no competing interests exist.

Additional Media

Fossil eggshell diversity of the Mussentuchit Member, Cedar Mountain Formation, Utah
Prospecting for eggshells in Utah, 2020. Credit: Lindsay Zanno, CC-BY 4.0 (https://creativecommons.org/licenses/by/4.0/)
Fossil eggshell diversity of the Mussentuchit Member, Cedar Mountain Formation, Utah
Features of Undulatoolithus fragment NCSM 33729. A) surface view of NCSM 33729. Red line indicates where thin section was made (dashed where not seen in the radial thin sections). B) NCSM 33729 in radial thin section. Tailed scale bar marks very high, undulating ornamentation. Gradational ML/CL boundary marked with solid black lines; accretion lines in CL shown with dashed black lines; arrows and black fill show infilled pores. C) radial thin section under crossed polars. Scale bars equal 10 mm. Credit: Hedge et al., 2025, PLOS One, CC-BY 4.0 (https://creativecommons.org/licenses/by/4.0/)

Keywords

Animal Research Archeology Cretaceous Period Dinosaur Fossils Dinosaurs Herbivores Natural History Social Sciences Species Diversity

Article Information

Journal
PLOS One
DOI
10.1371/journal.pone.0314689
Article Publication Date
2025-02-26
Article Title
Fossil eggshell diversity of the Mussentuchit Member, Cedar Mountain Formation, Utah
COI Statement
The authors have declared that no competing interests exist.

Contact Information

Hanna Abdallah
PLOS
onepress@plos.org

How to Cite This Article

APA:
PLOS. (2025, February 26). Fossil eggshells from Utah's Cedar Mountain Formation include Cretaceous period eggs from 3 feathered bird-like dinosaurs, 2 herbivorous dinosaurs, and a crocodile-like species found for the first time outside Europe. Brightsurf News. https://www.brightsurf.com/news/L7VQ6WN8/fossil-eggshells-from-utahs-cedar-mountain-formation-include-cretaceous-period-eggs-from-3-feathered-bird-like-dinosaurs-2-herbivorous-dinosaurs-and-a-crocodile-like-species-found-for-the-first-time-o.html
MLA:
"Fossil eggshells from Utah's Cedar Mountain Formation include Cretaceous period eggs from 3 feathered bird-like dinosaurs, 2 herbivorous dinosaurs, and a crocodile-like species found for the first time outside Europe." Brightsurf News, Feb. 26 2025, https://www.brightsurf.com/news/L7VQ6WN8/fossil-eggshells-from-utahs-cedar-mountain-formation-include-cretaceous-period-eggs-from-3-feathered-bird-like-dinosaurs-2-herbivorous-dinosaurs-and-a-crocodile-like-species-found-for-the-first-time-o.html.