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  1. boletinsgm.igeolcu.unam.mx › bsgm › indexBoletín de la Sociedad Geológica Mexicana - UNAM

    Lám. XXI. Stomiosphaera similis y otros calcisferulidos, figs. 1 y 2: GM·211; Praecalcisphaerula peregrinaensis nov. gen. nov. sp. figs. 3 y 5 (luz natural) y figs. 4 y 6 (entre nicoles cruzados) (figs. 3 y 4) GM·208 y (ligs. 5 y 6) GM·210. Calcisphaerula innominata fig. 9 (luz natural) y fig. 10 (entre nicoles cruzados): GM-213.

    • calcisphaerula innominata1
    • calcisphaerula innominata2
    • calcisphaerula innominata3
    • calcisphaerula innominata4
    • calcisphaerula innominata5

  2. www.researchgate.net › figure › Microphotographs-ofMicrophotographs of calcispheres and roveacrinid ossicles. A ...

    Download scientific diagram | Microphotographs of calcispheres and roveacrinid ossicles. A, Calcisphaerula innominata. B, Pithonella ovalis, axial and transverse sections.

  3. boletinsgm.igeolcu.unam.mx › bsgm › indexBoletín de la Sociedad Geológica Mexicana - UNAM

    En esta sección se colectó una amonita clasificada como: Schloenbchia aff. wintoni adkins, además de Inoceramus sp., entre los microfósiles clasificados se tienen: Calcisphaerula innominata, Pithonella sp., P. ovalis, Hedbergella sp., Clavihedbergella moremanni, Heterohelix sp., Globigerinelloides sp., whiteinella sp., Globotruncana sp., ...

    • calcisphaerula innominata1
    • calcisphaerula innominata2
    • calcisphaerula innominata3
    • calcisphaerula innominata4

  4. www.sciencedirect.com › science › articleCenomanian–Turonian facies succession in the Guerrero–Morelos ...

    2 de sept. de 2004 · Calcisphaerulids ( P. ovalis, Calcisphaerula innominata, S. sphaerica ), roveacrinids ( Roveacrinus sp., Roveacrinus cf. geinitzi) common to abundant thin-bivalves and scarce planktonic foraminifers (whiteinellids, hedbergellids, heterohelicids) dominate the microfossil assemblage.

  5. Imágenes

    • (a) Calcisphaerula innominata Bonet 1956, Axial section, Kharameh ...
    • Microphotographs of calcispheres and roveacrinid ossicles. A ...
    • Boletín de la Sociedad Geológica Mexicana
    • Microphotographs of calcispheres and roveacrinid ossicles. A ...
    • Figure 10
    • Boletín de la Sociedad Geológica Mexicana

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  6. link.springer.com › article › 10Roveacrinid microfacial assemblages (Roveacrinida, Crinoidea ...

    14 de sept. de 2018 · Calcispheres are the dominant skeletal grains in this microfacies, ranging from 60 to 80% in abundance. First, Pithonella ovalis and Calcisphaerula innominata are the major components. Secondly, the planktonic foraminifers are generally belonging to Families Heterohelicidae and Hedbergellidae.

  7. www.sciencedirect.com › science › articlePlanktonic foraminifera biozones and isotope stratigraphy of ...

    1 de nov. de 2018 · In this part of the Maraveh Tappeh section, besides planktonic foraminifera, Calcisphaerula innominata lata are also constantly present.

  8. www.researchgate.net › publication › 337186512Microfossil assemblage of the Eagle Ford Formation from the ...

    10 de sept. de 2019 · There are also abundant calcispheres, such as Risserella rablingae, Pithonella ovalis, and Calcisphaerula innominata; as well as roveacrinoid ossicles (genus Roveacrinus), and unidentified...