NAME Diporicellaesporites icebergi
AGE Late Palaeocene or Early Eocene.   AGE span: 58.7...40.4 mya
K&J CLASSIFICATION (2000) Fungi Imperfecti, Phragmosporae.
FIGURE(S)
Image of
Pl.14fig.26.jpg
FIGURE REFERENCE Kalgutkar RM, Sigler L. 1995. Some fossil fungal form-taxa from the Maastrichtian and Palaeogene ages; Mycological Research, v. 99, p. 513-522.
SPECIES, AUTHORITY D. icebergi Kalgutkar & Sigler 1995, p. 517, fig. 7 (four-celled spore on left).
LOCATION Iceberg Bay Formation at Kanguk Peninsula, Axel Heiberg Island, Northwest Territories, Canada.
ORIG DESCRIPTION* Conidia simple cylindrical, brown, smooth to minutely verruculose, diporate, catenate, 1-3 septate; septa thicker than conidium wall, about 2 µm thick, dark brown, with narrow septal pores in the centre. Septal thickening extending laterally a little along the spore wall on either side. Pores or areas of contact between conidia at both ends dark, simple, slightly convex. Mature conidia 27-42 x 5-7 µm. Two-celled conidia 12-16 x 5-7 µm.
COMMENTS* Diporicellaesporites icebergi may be compared with Diplococcium Grove 1985 or Bispora in which conidia are predominantly two-celled and have a broad, dark-brown band at the septum. The conidia of both Bispora betulina (Corda) S. Hughes and D. spicatum Grove are borne in chains and are rounded at each end or slightly convex. The septa of D. spicatum are marked by conspicuous septal pores, rather similar to those of Diporicellaesporites icebergi shown in figs. 7 and 8. There is no evidence of blastic conidial development in the fossil specimen.

Derivation of name: After the Iceberg Bay Formation.
PUBLICATION REFERENCE Kalgutkar RM, Sigler L. 1995. Some fossil fungal form-taxa from the Maastrichtian and Palaeogene ages; Mycological Research, v. 99, p. 513-522.
K&J REMARKS
TYPE
ALL NAMES (Including synonyms) Diporicellaesporites icebergi
SERIAL NUMBER 375
PUBLIC COMMENTS
 *For source, see Publication Reference.