. Bulletin - United States National Museum. Science. EARLY PALEOZOIC BBYOZOA OP THE BALTIC PEOVINCES, 65 stome, is direct, circular, about mm. in diameter, and situated near the anterior end. Occurrence.—^The original types came from the Trenton rocks of New York, where the zoarium is of more delicate growth than in the higher formations; but specimens of C. injiata are generally abundant in all of the Middle and Upper Ordovician and earliest Silurian (Rich- mond) formations of North America. Typical examples have been /. Fig. 10.—CORYNOTRYPA INFLATA. a AND 6, ZOAEIUM, NATURAL SIZE, AND A
. Bulletin - United States National Museum. Science. EARLY PALEOZOIC BBYOZOA OP THE BALTIC PEOVINCES, 65 stome, is direct, circular, about mm. in diameter, and situated near the anterior end. Occurrence.—^The original types came from the Trenton rocks of New York, where the zoarium is of more delicate growth than in the higher formations; but specimens of C. injiata are generally abundant in all of the Middle and Upper Ordovician and earliest Silurian (Rich- mond) formations of North America. Typical examples have been /. Fig. 10.—CORYNOTRYPA INFLATA. a AND 6, ZOAEIUM, NATURAL SIZE, AND A PORTION, X9; C, THREE ZOCECIA OF SAME, X18, SHOWING THE POROUS WALL; d, A VERTICAL SECTION OF A ZOCECIUM, X18. LOWER PORTION OP THE Trenton formation at Cannon Falls, Minnesota, e and/, small portion of a colony, INCRUSTING RAFINESQUINA ALTERNATA, X9 AND X18; g, OUTLINE OF ZOCECIA, X18, SHOWING THREE "GEMS" SPRINGING FROM ONE PARENT CELL. UPPER ORDOVICIAN (MaYSVILLE), CINCINNATI, OhIO. (After Ulrich.) found in the Middle Ordovician (Wesenberg) limestone (E), at Wesen- berg, Esthonia, Russia (Cat. No. 57115, ). Numerous specimens from American localities are in the collections of the British Museum. CORYNOTRYPA ABRUPTA Bassler. Text figs. 11, 12. Corynotrypa abrupta Bassler, Proc. U. S. Nat. Mus., vol. 39, 1911, p. 517, text figs. 16, 17. Zoarium adnate, consisting of frequently branching, elongated, rather large, clavate zooecia, much swollen at the anterior end. The tubular. 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 United States National Museum; Smithsonian Institution; United States. Dept. of the Interior. Washington : Smithsonian Institution Press, [etc. ]; for sale by the Supt. of Docs. , U. S. Govt Print. Off.
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