Pirumella echinosa
Classification: ntax_non_cocco -> Dinophytes -> Thoracosphaeraceae -> Oblique wall -> Pirumella -> Pirumella echinosa
Sister taxa: P. albiensis, P. amplicrystallina, P. bassriverensis, P. cookii, P. cumulosa, P. cylindrica, P. echinosa, P. edgarii, P. fusiformis, P. heirtzleri, P. hystrichosphaeroidea, P. johnstonei, P. krasheninnikovii, P. labyrinthica, P. laquaeta, P. lepidota, P. loeblichii, P. longiporosa, P. loricata, P. mcnightii, P. microspinosa, P. miniaperta> >>
Taxonomy:
Citation: Pirumella echinosa (Keupp 1982) Lentin & Williams 1993Rank: speciesBasionym: Pithonella echinosa Keupp 1982Synonyms: Obliquipithonella echinosa
Catalog entries: <. echinosa Keupp 1982 [no catalog entry yet]
Morphology: Wall structure: oblique
Archeopyle: present but type unclear (Streng et al. 2004)
Geological Range:
Last occurrence (top): within Early Paleocene Sub-Epoch (61.61-66.04Ma, top in Danian stage). Data source: Hildebrand-Habel et al. 1999
First occurrence (base): within Early Paleocene Sub-Epoch (61.61-66.04Ma, base in Danian stage). Data source: Hildebrand-Habel et al. 1999
References:
Hildebrand-Habel, T., Willems, H. & Versteegh, G. J. M. (1999). Variations in calcareous dinoflagellate associations from the Maastrichtian to Middle Eocene of the western South Atlantic Ocean (São Paulo Plateau, DSDP Leg 39, Site 356). Review of Palaeobotany and Palynology. 106: 57-87. gs
Keupp, H. (1982). Die kalkigen Dinoflagellaten-Zysten des späten Apt und frühen Alb in Nordwestdeutschland. Geologisches Jahrbuch. A65: 307-363. gs
Lentin, J. K. & Williams, G. L. (1993). Fossil dinoflagellates: index to genera and species. 1993 edition. American Association of Stratigraphic Palynologists, Contributions Series. 28: 1-856. gs
