The Foraminifera: An Introduction to the Study of the ProtozoaLongmans, Green and Company, 1902 - 354 páginas |
Dentro del libro
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Página xiv
... EXTERNAL PARTS OF A FORAMINIFERAL SHELL • 42 26 . D'ORBIGNY'S CLASSIFICATION OF THE FORAMINIFERA 46 27. Spirillina ROCK ; UPPER CAMBRIAN ; MALVERNS 254 28 . Saccammina LIMESTONE ; CARBONIFEROUS ; NORTHUMBERLAND 256 29. Fusulina ...
... EXTERNAL PARTS OF A FORAMINIFERAL SHELL • 42 26 . D'ORBIGNY'S CLASSIFICATION OF THE FORAMINIFERA 46 27. Spirillina ROCK ; UPPER CAMBRIAN ; MALVERNS 254 28 . Saccammina LIMESTONE ; CARBONIFEROUS ; NORTHUMBERLAND 256 29. Fusulina ...
Página 25
... external granules of the mass then arrange them- selves against the nuclear membrane . The central portion of the nucleus then reunites and forms a solid body of chromatin . The result of this move- ment is to draw the peripheral ...
... external granules of the mass then arrange them- selves against the nuclear membrane . The central portion of the nucleus then reunites and forms a solid body of chromatin . The result of this move- ment is to draw the peripheral ...
Página 27
... external characters , fall into two groups ; one possessing a large central chamber and a small disc , the other a small central chamber and a large disc . These are respectively termed form A and form B , or the megalospheric and ...
... external characters , fall into two groups ; one possessing a large central chamber and a small disc , the other a small central chamber and a large disc . These are respectively termed form A and form B , or the megalospheric and ...
Página 33
... external form of the Foraminifera , which , in spiral shells , such as Cristellaria and Polystomella , resemble those of cephalopods , as Nautilus and Spirula , except that they are much more minute . The inter- nal appearances of the ...
... external form of the Foraminifera , which , in spiral shells , such as Cristellaria and Polystomella , resemble those of cephalopods , as Nautilus and Spirula , except that they are much more minute . The inter- nal appearances of the ...
Página 35
... external apertures of each chamber in succes- A B FIG . 20. - MEDIAN SECTIONS OF FORAMINIFERA , SHOWING STOLON PASSAGES THROUGH THE SEPTA . A = Peneroplis , with imperforate shell - wall ; B = Cristellaria , with perforate shell - wall ...
... external apertures of each chamber in succes- A B FIG . 20. - MEDIAN SECTIONS OF FORAMINIFERA , SHOWING STOLON PASSAGES THROUGH THE SEPTA . A = Peneroplis , with imperforate shell - wall ; B = Cristellaria , with perforate shell - wall ...
Otras ediciones - Ver todas
The Foraminifera: An Introduction to the Study of the Protozoa Frederick Chapman Vista completa - 1902 |
The Foraminifera: An Introduction to the Study of the Protozoa Frederick Chapman Sin vista previa disponible - 2015 |
The Foraminifera: An Introduction to the Study of the Protozoa (Classic Reprint) Frederick Chapman Sin vista previa disponible - 2015 |
Términos y frases comunes
abundance adherent Alveolina Ammodiscus aperture Aptian arenaceous arranged balsam beds Brady calcareous Canada balsam Carboniferous Chalk chamberlets chambers chitinous Clay complanate coral Cretaceous to Recent Cristellaria Crown 8vo Cycloclypeus D'Orbigny D'Orbigny sp deposits depths dimorphism dredgings Eocene example EXAMPLE.-C fathoms Forami Foraminifera foraminiferal fauna fossil Funafuti Fusulina Gault genera genus Geol glauconitic Globigerina ooze Goës Greensand Gromia growth Haplophragmium hyaline Illustrations Journ Jurassic Lagena limestone London Clay Lower Cretaceous Mém Micr Miliolina Miocene nautiloid Nodosaria Nubecularia Nummulites Oligocene Orbitoides Orbitolites Parker and Jones pelagic perforate Plate 12 Plate 9 Pliocene porcellanous pseudopodia Reuss Rotalia sand sarcode segments septal face septate shallow water shell-structure shell-wall Sitzungsb sometimes species specimens spicules spiral stolon strata structure Sub-family surface Tertiary Textularia thin tion triserial tube types Upper usually whilst whorl Wien Wiss
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