The Foraminifera: An Introduction to the Study of the ProtozoaLongmans, Green and Company, 1902 - 354 páginas |
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Página 5
... show . To be successful , however , in extracting Foraminifera from the chalk , it must be borne in mind that some strata are almost devoid of these organisms , and a little geological knowledge. FIG . 4. - FROM A PHOTOMICROGRAPH OF A ...
... show . To be successful , however , in extracting Foraminifera from the chalk , it must be borne in mind that some strata are almost devoid of these organisms , and a little geological knowledge. FIG . 4. - FROM A PHOTOMICROGRAPH OF A ...
Página 22
... show it to vary in its diameter from 018 to 066 mm . The nucleus often contains more or less numerous smaller bodies ( nucleoli ) . F. E. Schulze described the nucleus of Polystomella striatopunctata , and stated that it was a round ...
... show it to vary in its diameter from 018 to 066 mm . The nucleus often contains more or less numerous smaller bodies ( nucleoli ) . F. E. Schulze described the nucleus of Polystomella striatopunctata , and stated that it was a round ...
Página 24
... shows that the nucleus , surrounded by protoplasm , is invaded by the latter , which breaks up into globules , penetrating little by little into the nucleus . The protoplasm disintegrates the chromatin of the nucleus , rendering the ...
... shows that the nucleus , surrounded by protoplasm , is invaded by the latter , which breaks up into globules , penetrating little by little into the nucleus . The protoplasm disintegrates the chromatin of the nucleus , rendering the ...
Página 29
... show numerous compact bodies of different sizes and irregular shape , derived by disintegration of the nucleus . The megalospheric form is , as a rule , much more abundant than the microspheric . Of Polystomella crispa Lister gives the ...
... show numerous compact bodies of different sizes and irregular shape , derived by disintegration of the nucleus . The megalospheric form is , as a rule , much more abundant than the microspheric . Of Polystomella crispa Lister gives the ...
Página 34
... show quite a complex structure . The outer shell- wall is non - tubulate only in the group of the Porcellanea or Imperforata ; but in all the sub- divisions of the Foraminifera the septa dividing the chambers are perforated by a tube or ...
... show quite a complex structure . The outer shell- wall is non - tubulate only in the group of the Porcellanea or Imperforata ; but in all the sub- divisions of the Foraminifera the septa dividing the chambers are perforated by a tube or ...
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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