NAME Diporicellaesporites doliiformis
AGE Late Paleocene-Early Eocene.   AGE span: 58.7...40.4 mya
K&J CLASSIFICATION (2000) Fungi Imperfecti, Phragmosporae.
FIGURE(S)
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Pl.14fig.29.jpg
FIGURE REFERENCE Kalgutkar RM. 1997. Fossil fungi from the lower Tertiary Iceberg Bay Formation, Eureka Sound Group, Axel Heiberg Island, Northwest Territories, Canada; Review of Palaeobotany and Palynology, v. 97, p. 197-226.
SPECIES, AUTHORITY D. doliiformis Kalgutkar 1997, p. 212, pl. 2, fig. 4.
LOCATION Kanguk Peninsula, Axel Heiberg Island, Northwest Territories, Canada.
ORIG DESCRIPTION* Diporate, smooth, brown, 4-celled, cylindrical spores with flat ends. Spore barrel- or drum-shaped, with proportionately large central cells and two much smaller end cells. Spores are conspicuous by the presence of dark thickened bands at the septa. Septa dark, thicker than the cell wall, 1-1.5 µm in thickness, slightly notched and with clear septal flaps when folded, and septal pores. End cells squarish with apical pores subtended by septa. Cell wall thin, less than 1 µm thick. Spores 24-37 x 9-11 µm in size.
COMMENTS* The spores of all formally described species of Diporicellaesporites differ significantly from D. doliiformis in general morphological features. Diporicellaesporites sp. A (Kalgutkar, 1993; pl. 4.1, fig. 19) is closely comparable to D. doliiformis in general morphology and having distinctly smaller terminal cells. It differs in having slightly smaller spores with only slightly differentially thickened septa.

Etymology: Named for barrel-shape of spores.
PUBLICATION REFERENCE Kalgutkar RM. 1997. Fossil fungi from the lower Tertiary Iceberg Bay Formation, Eureka Sound Group, Axel Heiberg Island, Northwest Territories, Canada; Review of Palaeobotany and Palynology, v. 97, p. 197-226.
K&J REMARKS
TYPE
ALL NAMES (Including synonyms) Diporicellaesporites doliiformis
SERIAL NUMBER 362
PUBLIC COMMENTS
 *For source, see Publication Reference.