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Plateau Fence Lizard vs. Common Sagebrush Lizard

Two spiny lizards of the same genus, both grey-brown with pale side stripes and blue belly patches in males, and both in southwestern Wyoming. A: the Plateau Fence Lizard's back scales are large, keeled and pointed; the Sagebrush Lizard's are smaller and finer. B: the Sagebrush Lizard often has rusty orange in the armpit and a black bar on the shoulder; the Plateau Fence Lizard has neither. The surest mark needs the lizard in hand: the scales on the rear of the thigh are keeled in the Plateau Fence Lizard, mostly tiny and granular in the Sagebrush Lizard.

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Plateau Fence Lizard

Sceloporus tristichus

Common Sagebrush Lizard

Sceloporus graciosus
Plateau Fence Lizard vs. Common Sagebrush Lizard: comparison sheet with the differences marked

Photographs via iNaturalist under Creative Commons licences; the photographers are credited on the sheet.

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