Crocodylian–chelonian carnivory: bite traces of Dwarf Caiman, Paleosuchus palpebrosus, in Red-eared slider, Trachemys scripta, carapaces

Jesper Milàn; Jens Kofoed; Richard Granville Bromley

Crocodylian–chelonian carnivory: bite traces of Dwarf Caiman, Paleosuchus palpebrosus, in Red-eared slider, Trachemys scripta, carapaces

Jesper Milàn, Jens Kofoed, Richard Granville Bromley

Geology

Abstract

Predatory acts of the Recent Dwarf Caiman, Paleosuchus palpebrosus, preying on Red-eared Sliders, Trachemys scripta, are investigated with regard to bite traces left in the turtle shells and the technique applied by the caiman to crack open the carapace of the turtle. The caiman manipulated the turtle into an upright position in the mouth before applying jaw pressure, which caused the bony bridges connecting the carapace and plastron to break, so the shell could be opened and emptied. This act left several types of bite traces in the shells, including round puncture holes, often arranged in rows; elongated scratch traces from the teeth scraping along the carapaces; and large crushed areas on the plastrons and carapaces from repeated bites applied to the same area. These are all traces that would be recognizable in fossil turtle material.

Original language	English
Journal	New Mexico Museum of Natural History and Science. Bulletin
Volume	51
Pages (from-to)	195-200
Number of pages	6
ISSN	1524-4156
Publication status	Published - 2010

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Crocodylian–chelonian carnivory : bite traces of Dwarf Caiman, Paleosuchus palpebrosus, in Red-eared slider, Trachemys scripta, carapaces. / Milàn, Jesper; Kofoed, Jens; Bromley, Richard Granville.

In: New Mexico Museum of Natural History and Science. Bulletin, Vol. 51, 2010, p. 195-200.

Research output: Contribution to journal › Journal article › Research › peer-review

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abstract = "Predatory acts of the Recent Dwarf Caiman, Paleosuchus palpebrosus, preying on Red-eared Sliders, Trachemys scripta, are investigated with regard to bite traces left in the turtle shells and the technique applied by the caiman to crack open the carapace of the turtle. The caiman manipulated the turtle into an upright position in the mouth before applying jaw pressure, which caused the bony bridges connecting the carapace and plastron to break, so the shell could be opened and emptied. This act left several types of bite traces in the shells, including round puncture holes, often arranged in rows; elongated scratch traces from the teeth scraping along the carapaces; and large crushed areas on the plastrons and carapaces from repeated bites applied to the same area. These are all traces that would be recognizable in fossil turtle material.",

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AU - Kofoed, Jens

AU - Bromley, Richard Granville

PY - 2010

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N2 - Predatory acts of the Recent Dwarf Caiman, Paleosuchus palpebrosus, preying on Red-eared Sliders, Trachemys scripta, are investigated with regard to bite traces left in the turtle shells and the technique applied by the caiman to crack open the carapace of the turtle. The caiman manipulated the turtle into an upright position in the mouth before applying jaw pressure, which caused the bony bridges connecting the carapace and plastron to break, so the shell could be opened and emptied. This act left several types of bite traces in the shells, including round puncture holes, often arranged in rows; elongated scratch traces from the teeth scraping along the carapaces; and large crushed areas on the plastrons and carapaces from repeated bites applied to the same area. These are all traces that would be recognizable in fossil turtle material.

AB - Predatory acts of the Recent Dwarf Caiman, Paleosuchus palpebrosus, preying on Red-eared Sliders, Trachemys scripta, are investigated with regard to bite traces left in the turtle shells and the technique applied by the caiman to crack open the carapace of the turtle. The caiman manipulated the turtle into an upright position in the mouth before applying jaw pressure, which caused the bony bridges connecting the carapace and plastron to break, so the shell could be opened and emptied. This act left several types of bite traces in the shells, including round puncture holes, often arranged in rows; elongated scratch traces from the teeth scraping along the carapaces; and large crushed areas on the plastrons and carapaces from repeated bites applied to the same area. These are all traces that would be recognizable in fossil turtle material.

M3 - Journal article

SN - 1524-4156

VL - 51

SP - 195

EP - 200

JO - New Mexico Museum of Natural History and Science. Bulletin

JF - New Mexico Museum of Natural History and Science. Bulletin

ER -

Crocodylian–chelonian carnivory: bite traces of Dwarf Caiman, Paleosuchus palpebrosus, in Red-eared slider, Trachemys scripta, carapaces

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