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Reptilian coprolites in the Eocene of central Patagonia, Argentina

J. Marcelo Krause and Carlos I. Pina
Reptilian coprolites in the Eocene of central Patagonia, Argentina
Journal of Paleontology (May 2012) 86 (3): 527-538


Biogenic structures, herein interpreted as coprolites, were recorded in the ?upper Paleocene-Eocene Las Flores Formation, southeast Argentina. The coprolite origin is supported by several features, such as recurrent extrusive external morphology, longitudinal wrinkles, flattening of the ventral side, concentric and radial cracks, cryptocrystalline groundmass, and a phosphatic composition. A detailed comparative study with modern fecal masses, based on morphology, surface texture, micromorphology, mineralogical and chemical composition, suggest a crocodylian as the most probable producer, an interpretation also supported by the Patagonian paleontological record. This discovery, the first record on coprolites from Central Patagonia, provides new paleoenvironmental and paleoecological information for the studied successions.

ISSN: 0022-3360
EISSN: 1937-2337
Serial Title: Journal of Paleontology
Serial Volume: 86
Serial Issue: 3
Title: Reptilian coprolites in the Eocene of central Patagonia, Argentina
Affiliation: Museo Paleontologico Egidio Feruglio, Trelew, Argentina
Pages: 527-538
Published: 201205
Text Language: English
Publisher: Paleontological Society, Lawrence, KS, United States
References: 67
Accession Number: 2012-056740
Categories: Vertebrate paleontology
Document Type: Serial
Bibliographic Level: Analytic
Illustration Description: illus. incl. strat. cols., 1 plate, 1 table, geol. sketch map
S30°37'60" - S30°37'60", W60°16'60" - W60°16'60"
S45°34'60" - S45°34'60", W67°17'60" - W67°17'60"
Secondary Affiliation: Consejo Nacional de Investigaciones Cientificas y Tecnicas, ARG, Argentina
Country of Publication: United States
Secondary Affiliation: GeoRef, Copyright 2017, American Geosciences Institute. Abstract, Copyright, The Paleontological Society. Reference includes data from GeoScienceWorld, Alexandria, VA, United States
Update Code: 201229
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