from The Century Dictionary and Cyclopedia
- n. The typical genus of Holoptychiidæ: so called from the wrinkled enamel-scales.
Sorry, no etymologies found.
When we pass to the upper formation, we find the holoptychius the most characteristic fossil.
The holoptychius is of a flat oval form, furnished with fins, and ending in a long tail; the whole body covered with strong plates which overlap each other, and the head forming only a slight rounded projection from the general figure.
Some of the fossils of this system, -- the cephalaspis, coccosteus, pterichthys, holoptychius -- are, in form and structure, entirely different from any fishes now existing, only the sturgeon family having any trace of affinity to them in any respect.