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Footfall pattern of a bottom-walking crocodile (Crocodylus acutus)

James O. Farlow, Nathan J. Robinson, Morgan L. Turner, Jenell Black and Stephen M. Gatesy
Footfall pattern of a bottom-walking crocodile (Crocodylus acutus)
Palaios (September 2018) 33 (9): 406-413


Drone footage of a large American crocodile bottom walking in shallow coastal water off Costa Rica was used to estimate oblique pace and stride lengths and pace angulations from autopodial touchdowns. The crocodile's pes stride lengths were longer but more variable than expected for an individual of comparable size high-walking on land, due in part to punting locomotion, but also to wave action moving the reptile's body. Pace angulations were also larger than expectations for a crocodile high walking on land. These features are also seen in fossil trackways, suggesting that trackways ascribed to "swimming" crocodylomorphs might better be characterized as made by bottom walking and punting reptiles.

ISSN: 0883-1351
Serial Title: Palaios
Serial Volume: 33
Serial Issue: 9
Title: Footfall pattern of a bottom-walking crocodile (Crocodylus acutus)
Affiliation: Purdue University-Fort Wayne, Department of Biology, Fort Wayne, IN, United States
Pages: 406-413
Published: 201809
Text Language: English
Publisher: Society for Sedimentary Geology, Tulsa, OK, United States
References: 41
Accession Number: 2018-082116
Categories: Vertebrate paleontology
Document Type: Serial
Bibliographic Level: Analytic
Illustration Description: illus. incl. 2 tables
N10°19'60" - N10°19'60", W85°50'60" - W85°50'60"
Secondary Affiliation: Cape Eleuthera Island School, BHS, BahamasBrown University, USA, United States
Country of Publication: United States
Secondary Affiliation: GeoRef, Copyright 2018, 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: 2018
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