North American early Tertiary Bryozoa (Bulletin of the United States National Museum)

This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1920 Excerpt: ...X 20. with prominent avicularia deforming the aperture. 20. Zooecia, X 20, with transverse, curved avicularia. 21. Zooecia, X 20, showing the very salient avicularia. 22. A fragment exhibiting gonoecia, X 20. The avicularium is oblique and deforms the apertura. 23. Zooecia of a polymorphic fragment, X 20, with large oblique avicularlum. Middle Jacksonian: 18 miles west of Wrlghtsville, Georgia. Cat. No. 64190, U.S.N.M. Figs. 24-26. PhylacteUa infundibulum Canu and Bassler, 1917 (p. 574). 24. Ordinary zooecia of the incrusting zoarium, X 20. The small pores and granules of the surface and the tubular peristome with its distal tongue are illustrated 25, 26. Two fragments, X 20, each bearing an ovicelled zooecium..Middle Jacksonian (Castle Hayne limestone): Wilmington, North Carolina. Cat. No. 62607, U.S.N.M. Fig. 27. PhylacteUa parvicella, new species (p. 575). The incrusting zoarium, X 20. illustrating the small size of the zooecia Middle Jacksonian: Baldock, Barnwell County, South Carolina. Cat. No. 64191, U.S.N.M. Figs. 1-8. Adeonella follieulata Cami and Bnssler, 1917 (p. 562). 1. Fragments of the bilamellar zoarium, natural size. 2. Zoarial branch, X 20, illustrating the occurrence of a large interzooecial avicularium and numerous small round avicularia. 3. Axial zooecia, X 20. These are usually shorter than the marginal ones. 4. A frond. X 20, composed entirely of long zooecia. 5. A common aspect of the species, X 20. The surface is altered by fossilization. 6. Portion of a branch, X 20, with gonoecia. The zooecia with the ascopore close to the apertura are ordinary ones while the gonoecia have the ascopore further removed. 7. Interior of zooecia, X 20. The areolae, splramen, and apertura are illustrated. 8. Longitudinal section, X 20, illustrating inte...