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Overlying the boney elements are a series of scutes, which are made of keratin and are a lot like horn or nail tissue. In the center of the carapace are five vertebral scutes and out from these are four pairs of costal scutes. Around the edge of the shell are 12 pairs of marginal scutes.
Scutes on an alligator foot A scute ( / s k j uː t / ⓘ ) or scutum ( Latin : scutum ; plural: scuta " shield ") is a bony external plate or scale overlaid with horn, as on the shell of a turtle , the skin of crocodilians , and the feet of birds .
The plastron features paired gular, humeral, pectoral, abdominal, femoral, and anal scutes. [8] The shell serves as external armor, although loggerhead sea turtles cannot retract their heads or flippers into their shells. [22] Sexual dimorphism of the loggerhead sea turtle is only apparent in adults. Adult males have longer tails and claws than ...
Acaenasuchus paramedian scutes do not include the "tongue in groove" articulation with adjacent plates as seen on Desmatosuchus. [2] Medial and lateral "wing" structures emanate from the ridges of the pre-sacral scutes. [2] Deeply incised pitting is visualized posterior to the pre-sacral scutes. [2] A division of the raised boss is also noted.
The average life span of adult box turtles is 50 years, while a significant portion lives over 100 years. The age of a growing box turtle in the wild cannot be accurately estimated by counting the growth rings on the scutes; Their growth is directly affected by the amount of food, types of food, water, illness, and more. Box turtle eggs are ...
The upper carapace consists of the vertebral scutes, which form the central, elevated portion; pleural scutes that are located around the vertebral scutes; and then the marginal scutes around the edge of the carapace. The rear marginal scutes are notched. The scutes are bony keratinous elements.
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The gulars (frontmost pair of plastron scutes) do not protrude much past the front of the carapace. The plastron of a male is deeply indented, and the anal scutes (rearmost pair of plastron scutes) may be used to sex the animal while the color pattern varies by region. [5] Red-footed tortoise profile