Skip to Main Content
Skip Nav Destination
GEOREF RECORD

Significance of a small regurgitalite containing lissamphibian bones, from the Morrison Formation (Upper Jurassic), within a diverse plant locality deposit in southeastern Utah, USA

John R. Foster, Adrian P. Hunt and James I. Kirkland
Significance of a small regurgitalite containing lissamphibian bones, from the Morrison Formation (Upper Jurassic), within a diverse plant locality deposit in southeastern Utah, USA
Palaios (August 2022) 37 (8): 433-442

Abstract

A new specimen from a plant locality in the Morrison Formation of southeastern Utah exhibits characters suggestive of a small bromalite, possibly from a fish or semi-aquatic mammal. The specimen consists of a cluster of small bones, most referable to lissamphibians, including elements of at least one small frog (possibly a tadpole) and possibly the smallest reported salamander specimen from the formation. Chemical and taphonomic characters suggest that the specimen is a regurgitalite, the first from both the Morrison Formation and the Jurassic of North America. The lissamphibian material in the bromalite represents the southernmost likely occurrence of frogs and salamanders in the formation. The possible salamander material may represent a rare juvenile rather than a new taxon, and it is morphologically more similar to Valdotriton and Comonecturoides than it is to Iridotriton. The frog material is similarly unidentifiable to specific taxon.


ISSN: 0883-1351
EISSN: 1938-5323
Serial Title: Palaios
Serial Volume: 37
Serial Issue: 8
Title: Significance of a small regurgitalite containing lissamphibian bones, from the Morrison Formation (Upper Jurassic), within a diverse plant locality deposit in southeastern Utah, USA
Affiliation: Utah Field House of Natural History State Park Museum, Vernal, UT, United States
Pages: 433-442
Published: 202208
Text Language: English
Publisher: Society for Sedimentary Geology, Tulsa, OK, United States
References: 85
Accession Number: 2022-052437
Categories: Vertebrate paleontology
Document Type: Serial
Bibliographic Level: Analytic
Illustration Description: illus. incl. strat. col., 1 plate, 5 tables, geol. sketch map
N37°30'00" - N37°30'00", W109°30'00" - W109°30'00"
Secondary Affiliation: Flying Heritage and Combat Armor Museum, USA, United StatesUtah Geological Survey, USA, United States
Country of Publication: United States
Secondary Affiliation: GeoRef, Copyright 2022, American Geosciences Institute. Reference includes data from GeoScienceWorld, Alexandria, VA, United States. Reference includes data supplied by SEPM (Society for Sedimentary Geology), Tulsa, OK, United States
Update Code: 202239
Close Modal

or Create an Account

Close Modal
Close Modal