loeblich a r (38 risultati)

offprnt from: The Permian and Triassic Systems and their Mutual Boundary 465-480, 5 figs, 3 tabs 8vo, offprint.

Journal of Paleontology 44: 558-574 8vo, offprint.

Journal of Paleontology 42: 584-598 8vo, offprint.

Journal of Paleontology 43: 568-588 8vo, offprint.

Journal of Paleontology 47: 715-759 8vo, offprint.

Journal of Paleontology 42: 1378-1394, 1 fig, 7 pls 8vo, offprint.

Phycologia 9: 157-174 8vo, offprint.

Phycologia 10: 315-339 8vo, offprint.

Earth-Science Reviews 9: 207-240, 9 figs 8vo, offprint.

Phycologia 5: 81-216 8vo, paperback.

Hardcover. Condizione: Fine. HARDBACK, brown cloth, gilt lettering on spine, pages: vi, 323, plates: 74, text-figs., head, tail and corners lightly bumped and rubbed, ex- Geological Society of London library with stamps on title-page only,

Geological Society of America, Special Paper 127: 247-340, 12 figs 8vo, offprint.

pp. [ii],37, many figs. on 4 pls., refs. Orig. wrs.

Condizione: Very Good. 24, 5 b/w plates. . PB. Orig. wrappers. Vg. .

Smithsonian Miscellanous Collections 121-7: 142pp, 24 pls 8vo, paperback, pages need cutting.

GSA & University of Kansas Press New York: C511-C900, num figs. 8vo, hardback.

Micropaleontology 7: 257-305, 8 pls 4to, offprint.

Smithsonian Miscellanous Collections 117-15: 1-61, 8 pls 8vo, pages need cutting.

6 pp., 1 figs, gr. 8.

(S. A. Sci. Vol. 204) 1979. S. 1082 - 1084. gr8. m. zahlr. Abb. geklammert -2) -Sonderabdruck-.

New taxa: Heterantyx n. gen., Heterantyx antonovae n. sp., Quasispiroplectammina n. gen., Textulariopsidae n. fam., Aaptotoichus n. gen., Bimonilina reciprocata n. sp., Haimasiella n. gen., Minyaichme n. gen., Textulariopsis lechriosa n. sp., Textulariopsis texhomensis n. sp. 15 pp., 2 plates, 4.

Hardcover. Condizione: Near Fine. 1st Edition. Almost like new but top corners of vol 2 bumped and dust on top if text block of both volumes. Unmarked. Hardback blue cloth cover with gold lettering on spine. No DJ as issued. Volume 1, 31 + pages 1-510a, figures 1-399; Volume 2, 2+ pages 511-900, figures 400-653 . This is a heavy set of books (2.6 Kg) and will demand extra postage.

Based on the latest information available, total foraminiferal generic and family diversity through time is plotted by geologic stages, as is planktonic generic diversity. Phylogenetic diagrams are presented for the foraminiferal families within each suborder, and relationships of suborders postulated. Because of the widely varied life habits and habitats of foraminifers, diversification and extinction of the order Foraminiferida as a whole probably is less meaningful than consideration of smaller groups. Thus, histograms are presented of generic diversity by geologic stage within each suborder. Increased diversification of planktonic taxa in the Mesozoic and Cenozoic has coincided with similar diversification of larger taxa of the Textulariina, Miliolina, and Rotaliina, and all have shown coincident times of extinction. These periods of diversification suggest a reliance on symbiosis under conditions of low nutrient supply related to extensive epicontinental seas, low-lying continents, stratified oceans, and depressed oceanic circulation. Any marked environmental change in the photic zone or in shallow waters of the continental shelves may reverse the evolutionary pattern and lead to extinction of the specialized taxa. Eutrophication, changed salinity, turbidity, temperature variation, or other environmental changes may cause loss of endosymbionts and death of the host, resulting in extinction of the larger foraminifers and plankton, while at the same time an emphasis on bacterial grazing or detritus feeding allowed survival and even the expansion of smaller benthic foraminifers. 20 pp., 23 figs, 4.

Hardcover. Condizione: Very Good. No Jacket. Hardcover; 4to; 319 pages. Burgundy cloth hardcovers with gilt lettering on spine. Gently sunned spine. Mild shelfwear, edgewear/rubbing, Lightly bumped corners. Prev. owner's name on fep. Bright and clean pages. VG/--. Book.

Condizione: Good. ii, 390, text figs. . HB. 8vo, orig. cloth, worn. Ex-lib.: hinges cracked but firm, label to endpaper, small ink stamps, shelf no. to spine. Vol. 2 (of 2), pp. 511-900. Series editor Raymond C. Moore.

New taxa: Apodera n. gen., Certesella n. gen., Jungia n. gen., Diffusulininae n. subfam., Oryctoderma n. gen., Daitrona n. gen., Multifidella n. gen., Lankesterina n. sp., Entolingulina n. gen. 22 pp., 8.

8°, Leinen. Condizione: Gut. ca 319 Seiten Guter Zustand Q89 Sprache: Englisch Gewicht in Gramm: 800.

New taxa: Ichthyolariidae n. fam., Laevidentalina n. gen., Laevidentalina aphelis n. sp., Percultazonaria n. gen., Reticulopalmula n. gen., Prismatomorphia n. gen., Psilocitharella n. gen., Spirolingulininae n. subfam., Falsoguttulininae n. subfam., Strigialifusus n. gen., Gallitellia n. gen., Drepaniota n. gen., Drepaniota pachutaense n. sp., Heronalleniidae n. fam., Rhodanopeza n. gen., Loisthostomata n. gen., Loisthostomata exiguum n. sp., Cocoarota n. gen. 27 pp., 38 figs, gr. 8.

Hardcover. Condizione: Very Good. HARDCOVER; ex-library; Two COMPLETE volumes (1950-1951) bound together in library cloth; very good condition.