The foraminifera: an introduction to the study of the protozoa . ^ fossil. It is best known by the above 86 THE FOEAMINIFEEA EXPLANATION OF PLATE 2. Fig. A. Squaiiuiliiiii hcvis, Scliultze. Magnified. B. Calcituha pohjinorplin,l\ Tj^pical specimen, x 50. C. Calcituha polymorpha^VKdho/.. Young shell. x 100. D. Calcitiihd polijmorplia, Eoboz. Medium section of the shell, passing through t^vo chambers. < 150. E. Niibeciilaria Incifuga, Defrance (after Brady). A spiral form ; superior aspect. x 10. F. Nubecnlaria lucifuga, Defrance. Inferior (attached) surface. xlO. G. Nubecularia iiovoro
The foraminifera: an introduction to the study of the protozoa . ^ fossil. It is best known by the above 86 THE FOEAMINIFEEA EXPLANATION OF PLATE 2. Fig. A. Squaiiuiliiiii hcvis, Scliultze. Magnified. B. Calcituha pohjinorplin,l\ Tj^pical specimen, x 50. C. Calcituha polymorpha^VKdho/.. Young shell. x 100. D. Calcitiihd polijmorplia, Eoboz. Medium section of the shell, passing through t^vo chambers. < 150. E. Niibeciilaria Incifuga, Defrance (after Brady). A spiral form ; superior aspect. x 10. F. Nubecnlaria lucifuga, Defrance. Inferior (attached) surface. xlO. G. Nubecularia iiovorossica, var. nodida, Karrer and Sinzow. x Nuheriihn-i(( tibia. Jones and Parker. Magnified. I, J. Bilocnlina comata, Uradj. x , L. BilociiJiua ringens. Lamarck sp. (after Brady). x , N. FabuJaria discolithus, Defrance (after Carpenter), x 5. PLATE Family II. MILIOLID^. THE FAMILY MILIOLID^ 89 species, which is found in some frequency in the calcaire grossier (Middle Eocene.) of the ParisBasin. Externally F. discolifJius resembles alaterally compressed Bilociilina having a faintlystriate surface, but the porous nature of the aperturereveals its internal labyrinthular or subdividedcharacter. It often attains to a considerable size,sometimes as much as G mm. in length. Two other species of Fahularia are known, one,closely related to the above form, F. Zitteli ofSchwager, which was found in beds in Egypt ofnearly similar age to those of the Paris Basin; andanother lately described from the Miocene beds ofMuddy Creek, Victoria, by Schlumberger, under thename of F. HowcJdni. Middle Focene. (Plate, figs. M and N.) Genus Sinrolocnlina., DOebigny. The chambers in the shells of the genus Sjnro-loculina are arranged in a single plane, and thewhole of them are visible on either side of the aperture is generally circular with a too
Size: 1354px × 1845px
Photo credit: © The Reading Room / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1900, bookdecade1900, bookidforaminifera, bookyear1902
