Catalog - Pulleniatina mayeri umbilicata Catalog - Pulleniatina mayeri umbilicata

CATALOG OF ORIGINAL DESCRIPTIONS: Pulleniatina mayeri subsp. umbilicata Fordham 1986

This page provides data from the catalog of type descriptions. The catalog is sorted alphabetically. Use the current identification link to go back to the main database.

Higher levels: pf_cat -> P -> Pulleniatina -> Pulleniatina mayeri umbilicata
Other pages this level: P. mayeri juvenis, P. mayeri plana, P. mayeri polygonia, P. mayeri umbilicata, P. obliquiloculata finalis, P. obliquiloculata praecursor, P. obliquiloculata trochospira, P. okinawaensis, P. praeobliquiloculata, P. praepulleniatina, P. primalis, P. semiinvoluta, P. spectabilis, P. spectabilis praespectabilis

Pulleniatina mayeri umbilicata

Citation: Pulleniatina mayeri subsp. umbilicata Fordham 1986
taxonomic rank: sub-species
Type specimens: UQF 72218.
Type age (chronostrat): Orbulina suturalis zone; lower-middle Miocene.
Type locality: DSDP 208-21-3 73-75 cm.
Type repository: Brisbane, Australia; U Queensland Univ.

Current identification:

Original Description

Moderate in size, robust; elevated sinistral trochospire, slightly loose parallel to axis, tight perpendicular to axis. Equatorial outline circular, very weakly lobate; lateral outline spiroconvex. Chambers ovate, closely appressed, about 13 in total, 4i in final whorl; increase moderate then very slow after fifth-last chamber. Dorsal view: chambers longer concentrically, moderately inflated; sutures weakly depressed; intercameral sutures radial. Ventral view: chambers weakly inflated; intercameral sutures radial, meeting at tight umbilicus; aperture umbilical, low, pushed distally, with a thick lip. Lateral view: dorsoperipheral shoulder weakly compressed, otherwise moderately smoothly rounded. Wall densely perforate, heavily encrusted in early chambers of the final whorl.

Length, 280 p.m; width, 270 p.m; height, 180 ┬Ám.

Latin, umbilicatus, navel-like, umbilical.

Extra details from original publication
Description based on: Common material.
Holotype fig.: Fordham 1986 Pl. 17, fig. 26.


Fordham, B. G. (1986). Miocene-Pleistocene planktic foraminifers from D.S.D.P. Sites 208 and 77, and phylogeny and classification of Cenozoic species. Queensland, Australia. 1-224. gs


Pulleniatina mayeri umbilicata compiled by the pforams@mikrotax project team viewed: 4-12-2023

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