. A catalogue of the collection of Cambrian and Silurian fossils contained in the Geological Museum of the University of Cambridge. Paleontology; Paleontology. P. Davidis. Gh. A nop. Salteri. Names and References; Observations, &c. Paradoxides Davidis, Salter (Quart. Geol. Journ. Vol. xx. pi. 13, figs. 1—3). The largest tri- lobite known in Britain: often 18 to 20 inches long. This fine species, discovered in 1863, belongs to a genus everywhere cha- racteristic of the Menevian group only, and found in Bohemia, Spain, Sweden and Nor- way, Newfoundland, and the United States; in most cases i
. A catalogue of the collection of Cambrian and Silurian fossils contained in the Geological Museum of the University of Cambridge. Paleontology; Paleontology. P. Davidis. Gh. A nop. Salteri. Names and References; Observations, &c. Paradoxides Davidis, Salter (Quart. Geol. Journ. Vol. xx. pi. 13, figs. 1—3). The largest tri- lobite known in Britain: often 18 to 20 inches long. This fine species, discovered in 1863, belongs to a genus everywhere cha- racteristic of the Menevian group only, and found in Bohemia, Spain, Sweden and Nor- way, Newfoundland, and the United States; in most cases it is associated with the pre- ceding and following genera. [P. Harlani, Green. A cast is placed in the drawer for comparison. It is the only species known to attain greater size than P. Davidis. The species comes from Boston, Massachu- setts]. Paradoxides Hicksii, Salter (Quart. Geol. Journ. Vol. xxv. pi. 3). The form and sculpture is quite intermediate between Paradoxides proper and the next genus. And it is worthy remark, that in geological position it is antecedent to Anopolenus next described, as that precedes Olenus. [P. Aurora, Salter. From still lower beds; in Dr. Hicks' cabinet.] Anopolenus Henrici, Salter (Quart. Geol. Journ. Vol. xx. pi. 13, figs. 4, 5, and p. 478). One of the most curious trilobites known, with immensely long eyes, contracted cheeks, « great head-spines, and the hinder pleurae dilated. Parad. Loveni, Angelin, is of this genus. Anopolenus Salteri, Hicks (Quart. Geol. Journ. ref. Vol. xxi. p. 478, f. 1). A much longer and narrower species than the last, with equally large eyes. The development in excess of the hinder pleurae (or leg-bases) is in accordance with the affinity with Para- doxides (see last page). Numbers and Localities. a. 2, a. 8, St. David's, (a. 2, Cast, presented by J. W. Salter, of the largest speci- men known, in the Brit. Museum), a. 3, specimen shortened by the cleavage. b. 276—278. (Pres. D. Homfray). St. David's, a.
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