[6][4][3] The genus Loxomma was discovered and named by Thomas Henry Huxley in 1862 via a near perfect cranium, a vertebra and a rib in the Lanarkshire coal-field of Scotland.

[1][5] There is a unique pitting on the exposed surfaces of the cranial bones in Loxomma often described as being honeycomb-shaped or net-like that can be used as a distinguishing feature.

[4] Large Labyrinthodonts have their lower jaw greatly prolonged behind the hinge to give additional leverage to muscles.

Instead they have a hinge at the very end of the lower jaw; in this way they lose some mechanical advantages and power in their bite but gain speed instead.

[4] The location of the orbits on the skull are raised up higher than the snout allowing for the animal to stick out its eyes while the rest of the body is underwater.

[4] Loxomma had 4 limbs that were paddle-like, based on the presence of one humerus that is elongated and broad below and narrow at its upper end, that they used to swim.

[4] It is concluded that they were a rather sluggish stegocephalian that was still capable of rapid movements for predation, swimming like a fish but breathing air like the alligators or crocodiles of today.