Term
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Definition
| Order defined by: anapsid skull, carapace and plastron, eight cervical vertebrae. |
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Term
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Definition
| Suborder: turtles with necks that retract to the side. Pelvis fused to both carapace and plastron. |
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Term
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Definition
| Family: Turtles with necks that do not fully retract. "Snake-necked" turtles. Usually have cervical scute. |
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Term
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Definition
| Suborder: turtles with necks that retract vertically, known as "hidden necked" turtles. Pelvis not fused to plastron or carapace. |
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Term
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Definition
| Family: Snapping turtles. Highly reduced plastron with cruciform shape, carapace serrated on posterior side. Neck not completely retractable in shell, tail is long and has tubercules. Head covered with epidermal plates. |
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Term
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Definition
| Family: "Mud or Musk turtles", plastron with single hinge, double hinge, or no hinge. |
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Term
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Definition
| Family: "Pond Turtles" with considerable ecological diversity. Head covered with smooth skin or posteriorly divided into shields. |
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Term
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Definition
| Family: Tortioses. Head covered with epidermal sheilds, elephantine hind legs, shovel-like forelimbs. Often have dome-like carapace. No webbing between toes. |
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Term
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Definition
| Superfamily: Sea turtles. Paddle-like forelimbs with one or two claws, head not completely retractile within shell. |
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Term
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Definition
| Family: Sea turtles, shell covered in epidermal shields. |
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Term
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Definition
| Family: Leatherback turtle, shell covered in leathery skin. |
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Term
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Definition
| Superfamily: Soft-shell turtles, shell covered with smooth, leathery skin. Snout with proboscis. |
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Term
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Definition
| Family: Soft-shell turtles, fleshy lips. |
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Term
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Definition
| CO turtle species: "snapping turtle," small plastron, long tail with sawtooth crest |
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Term
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Definition
| CO turtle species: "painted turtle," front edge of shields bordered with lighter coloration, rear of carapace smooth-edged, yellow lines on head and limbs |
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Term
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Definition
| CO turtle species: "ornate box turtle," shell with light and dark striping, plastron hinged in front |
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Term
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Definition
| CO turtle species: "yellow mud turtle," small fleshy projections on throat, single gular shield, head dark colored above and light below |
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Term
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Definition
| CO turtle species: "spiny softshell turtle," flexible, leathery, pancake-like shell, pointed fleshy snout |
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