The principal significance lies in the tooth and the cranium. The former is like that of the chimpanzee in shape, but less rugose on its grinding surface. It seems to lie between the ape and the human type of dentition. The cranium has a low, depressed arch, with a very narrow frontal region and highly developed superciliary ridges.

There is no certainly known extinct order of Protozoa; there is but one among the Coelenterata that of the rugose corals; there is none among the Mollusca; there are three, the Cystidea, Blastoidea, and Edrioasterida, among the Echinoderms; and two, the Trilobita and Eurypterida, among the Crustacea; making altogether five for the great sub-kingdom of Annulosa.

Part of a full-grown compound mass. These fossils, together with numerous species of Zaphrentis, Amplexus, Cyathophyllum, Clisiophyllum, Syringopora, and Michelinia, form a group of rugose corals widely different from any that followed them. Cyathocrinus planus, Miller. Body and arms. Cyathocrinus caryocrinoides, M'Coy. a. Surface of one of the joints of the stem. b.

There are only two orders extinct among the 'Crustacea'. There is not known to be an extinct order of these creatures, the parasitic and other worms; but there are two, not to say three, absolutely extinct orders of this class, the 'Echinodermata'; out of all the orders of the 'Coelenterata' and 'Protozoa' only one, the Rugose Corals.

The surface had weathered to a whitish-gray, but still in tiny depressions its pristine dark color showed in rugose characters. A splintered fissure held delicate fucoid impressions in fine script full of meaning.

But with this equinus, wide in foot like a horse's hoof, with rugose skin, dry tendons, and large toes, on which the black nails looked as if made of iron, the clubfoot ran about like a deer from morn till night. He was constantly to be seen on the Place, jumping round the carts, thrusting his limping foot forwards. He seemed even stronger on that leg than the other.

There are only two orders extinct among the 'Crustacea'. There is not known to be an extinct order of these creatures, the parasitic and other worms; but there are two, not to say three, absolutely extinct orders of this class, the 'Echinodermata'; out of all the orders of the 'Coelenterata' and 'Protozoa' only one, the Rugose Corals.

This is a native species of large bush, or almost tree growth, with rugose, oblong, serrulated leaves, and large, flat cymes of white flowers appearing in May and June. The whole tree is usually covered with a scaly tomentum, while the fruit is a black flattened drupe. V. LENTAGO. Sheepberry and Sweet Viburnum. North America, 1761.

Carapace convex on the sides, rather rugose on the sides behind, the front only slightly produced and edged with a toothed raised margin not reaching beyond the front edge of the lower orbit, and with a very short ridge at the middle of each orbit behind; the hands compressed, rather rugose, edge thick and toothed: wrist with four or five conical spines on the inner side, the front the largest: the central caudal lobe, broad, continuous, calcareous to the tip, lateral lobes, with a very slight central keel; the sides of the second abdominal rings spinose.

Goes north in the spring, and when he moves out they begin to rot and tumble." He cleared a space for the boy to stand upon. Then he brushed away the snow blanket flung loosely over the vault of ice. A wonderful bit of masonry stood exposed. Near its centre were two columns, large and rugose, each tapering to a capital and cornice. Between them was a deep lattice of crystal.