. A catalogue of the collection of Cambrian and Silurian fossils contained in the Geological Museum of the University of Cambridge. Paleontology; Paleontology. 32 UPPER CAMBRIAN. Case and Column of Drawers Reference to McCoy's Synopsis: and Figures of Genera. Names and References; Observations, &c. Numbers and Localities. G Tretaspis, p. 146. PI. 1E, f. 16. As var. of T. gibbifrons, p. 145. G G Gk Gk p. 148. PllE, ,p. 147. Conocoryphe. Gk JEglina. G. p. 148. Ogygia. Gk Trinucleus fimbriatus, Murchison (Siluria, 2nd ed. pi. 4, fig. 7). A species with a narrow furrowed border; the puncta
. A catalogue of the collection of Cambrian and Silurian fossils contained in the Geological Museum of the University of Cambridge. Paleontology; Paleontology. 32 UPPER CAMBRIAN. Case and Column of Drawers Reference to McCoy's Synopsis: and Figures of Genera. Names and References; Observations, &c. Numbers and Localities. G Tretaspis, p. 146. PI. 1E, f. 16. As var. of T. gibbifrons, p. 145. G G Gk Gk p. 148. PllE, ,p. 147. Conocoryphe. Gk JEglina. G. p. 148. Ogygia. Gk Trinucleus fimbriatus, Murchison (Siluria, 2nd ed. pi. 4, fig. 7). A species with a narrow furrowed border; the puncta in rows. Tri- nucleus is a simple trilobite: no eyes or facial suture. The seemingly complex punc- tate border is remarkable, but very easily explainable as a series of spines connected by transverse processes. Ampyx nudus, Murch. Decades Geol. Surv. 2, pi. 10. A remarkable genus like Trinucleus, but with long front- and side-spines to the head. Ampyx latus, McCoy, is only a var. of the preceding, distorted. Conocoryphe monile, Salter, n. sp. Glabella lobed, the front marginal furrow dotted. Conocoryphe or Triarthrus. A small species, probably of Triarthrus, an Upper Bala genus in N. America. This was formerly thought an Olenus; and the shales were therefore called Olenus shales. iEglina, sp. The genus has six body segments, and enormous eyes covering the side of the head. It is European only, and strictly a Bala fossil (Lower and Middle Bala). iEglina, sp. imperfect. The species are nume- rous. Ogygia corndensis, Murchison (Salter, Mon. Brit. Tril. p. 130, pi. 16). A broad axis for the genus. Ogygia Buchii, Brongniart (Salter, Mon. Brit. Tril. pi. 14,15). Male and female specimens of this, the flattest of all Trilobites, and pro- bably with the most immoveable segments. Ogygia angustissima, Salter, Mon. Brit. Tril. p. 129, pi. 14, figs. 8,9, may be only a variety of Ogygia Buchii. 3 m. North of Builth (as T. gibbifrons, var.) a. 101, Builth. [TheTregib locality is erroneous.]
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