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Ornate Tree Lizard vs. Western Fence Lizard

Both are grey lizards on rocks and trees; their records overlap along the Colorado River. A: Tiny, with two bands of bigger scales in the Ornate Tree Lizard; big, keeled and spiny all over in the Western Fence Lizard. B: Slim and flat, a fold across the throat in the Ornate Tree Lizard; stocky, spiny in the Western Fence Lizard.

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Ornate Tree Lizard

Urosaurus ornatus

Western Fence Lizard

Sceloporus occidentalis
Ornate Tree Lizard vs. Western Fence 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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