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1 September 2018 FOOTFALL PATTERN OF A BOTTOM-WALKING CROCODILE (CROCODYLUS ACUTUS)
JAMES O. FARLOW, NATHAN J. ROBINSON, MORGAN L. TURNER, JENELL BLACK, STEPHEN M. GATESY
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Abstract

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.

Copyright © 2018, SEPM (Society for Sedimentary Geology)
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 33(9), 406-413, (1 September 2018). https://doi.org/10.2110/palo.2018.037
Received: 17 April 2018; Accepted: 6 July 2018; Published: 1 September 2018
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