. Australasian fossils, a students' manual of palaeontology. Paleontology. EURYPTERIDS. 249 Fig. 121-SILURIAN EURYPTERIDS. c§5^>. l«t *** ^H // \ U A—Pterygotus osiliensis, Schmidt. I. of Oesel. {After Schmidt) B—Pterygotus australis, McCoy. Part of a body-segment. Silurian (Melb.) Victoria hensile purposes. Then come four pairs of slender walking feet. The sixth pair of appendages is in the form of powerful swimming feet or paddles, at the bases of which are the comb-like jaws. The ab- domen consists of thirteen joints, the last of which, the telson, is spatulate and posteriorly pointed. F
. Australasian fossils, a students' manual of palaeontology. Paleontology. EURYPTERIDS. 249 Fig. 121-SILURIAN EURYPTERIDS. c§5^>. l«t *** ^H // \ U A—Pterygotus osiliensis, Schmidt. I. of Oesel. {After Schmidt) B—Pterygotus australis, McCoy. Part of a body-segment. Silurian (Melb.) Victoria hensile purposes. Then come four pairs of slender walking feet. The sixth pair of appendages is in the form of powerful swimming feet or paddles, at the bases of which are the comb-like jaws. The ab- domen consists of thirteen joints, the last of which, the telson, is spatulate and posteriorly pointed. Frag- ments of a tolerably large species of Pterygotus occur in the Silurian shales of South Yarra, Mel- bourne, Victoria. It was probably about 18 inches in length when complete. Of this form, known as P. australis (Fig. 121 B), portions of the chelate (clawed) appendages, and parts of the abdominal segments have been found from time to time, but no complete fossil has yet been Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Chapman, Frank M. (Frank Michler), 1864-1945. Melbourne, London [etc. ] G. Robertson & Company Propy. ltd.
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Keywords: ., bookaut, bookcentury1900, bookdecade1910, booksubjectpaleontology
