Original descriptions of taxa. For coccolithophores, and many calcispheres, these are pages from the Farinacci & Howe Catalog of Calcareous Nannofossils. In other cases (e.g. non-calcifying haptophytes) the data is directly compiled on this site. The "Catalogue of Calcareous Nannofossils" was originally compiled by Prof A. Farinacci 1969-1989, since 2000 it has been updated and extended by Richard Howe - see The Farinacci and Howe Catalog - an Introduction.
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Citation: Alisphaeraceae Young et al., 2003taxonomic rank: FamilyType species: Alisphaera Heimdal 1973Described on page(s) : 112Current citation: Alisphaeraceae Young et al., 2003
Original Description Diagnosis: Cellulae coccolithiferae, status dominans cycli vitae erraticus, ferunt heterococcolithos dispositos secus series meridionales. Coccolithi irregulares cum margine directo versus polum flagellorum extenso in fimbriam vel extensionem. Coccolithus integer factus est ab monadibus labri; locus annuli proto-coccolithi intra tubum. V-elementi facunt tubum superum et fimbriam distalem; R-elementi facunt tubum bistratum inferum et constructiones proximales, aliquando cum extensione distali. Status alternatus cycli vitae erraticus, ferens nannolithos quadriangulatos aragoniticos. Nannolithi cum parte supero conico et base cruciforme.
Translation: Coccolithophores, dominant stage of life cycle typically: motile, bearing heterococcoliths arranged in meridional rows. Coccoliths asymmetrical with edge directed toward flagellar opening extended into a flange or protrusion. Entire coccolith formed of rim units; proto-coccolith ring locus within tube; V-units form upper tube and distal flange; R-units form two-layered lower tube and proximal structures, sometimes with distal extension. Alternate life-cycle phase typically: motile, bearing quadrate, aragonitic, nannoliths. Nannoliths with conical upper part and cruciform base.
References:
Heimdal, B. R. (1973). Two new taxa of Recent coccolithophorids. “Meteor” Forschungsergebnisse. (13): 70-75. gs
Young, J. R., Geisen, M., Cros, L., Kleijne, A., Probert, I. & Ostergaard, J. B. (2003). A guide to extant coccolithophore taxonomy. Journal of Nannoplankton Research. S1: 1-132. gs
Alisphaeraceae: Catalog entry compiled by <% compiler %>. Viewed: 15-9-2024
