differences in the scales of fishes and reptiles lies in their being dermally derived.
differences in the scales of fishes and reptiles lies in their being dermally derived.
differences in the scales of fishes and reptiles lies in their being?
dermally derived
Na
Na
section::::first reptiles.:early reptiles.









































the origin of the reptiles lies about 320–310 million years ago, in the swamps of the late carboniferous period, when the first reptiles evolved from advanced reptiliomorph labyrinthodonts.









































the oldest known animal that may have been an amniote, a reptile rather than an amphibian, is "casineria" (though it has also been argued to be a temnospondyl amphibian).









































a series of footprints from the fossil strata of nova scotia, dated to 315 million years, show typical reptilian toes and imprints of scales.









































the tracks are attributed to "hylonomus", the oldest unquestionable reptile known.
evolution of reptiles