NAME Diporicellaesporites jansonii
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.32.jpg
FIGURE REFERENCE Kalgutkar RM. 1993. Paleogene fungal palynomorphs from Bonnet Plume Formation, Yukon Territory; Contributions to Canadian Paleontology, Geological Survey of Canada, Bulletin 444, p. 51-105.
SPECIES, AUTHORITY D. jansonii Kalgutkar 1993, p. 75, pl. 4.2, fig. 5.
LOCATION Peel River, Yukon Territory, Canada.
ORIG DESCRIPTION* Multicellular, diporate, fusiform-ellipsoidal, brown, smooth fungal spores. Spores generally with six to nine septa, with regular septation. Cell wall, about 1 µm thick. Spores broad in the centre, gradually narrowing at the ends; with a distinct band and flaps of triangular dark brown thickenings at the septa. Pores simple, incurved. Spore size 35-45 x 10-13 µm.
COMMENTS* Some specimens were observed with serial spores in succession. This may be attributed to germination of spores in situ at the apex to form a short, percurrent secondary conidiophore that bears secondary, singular spores at the apices of successive proliferations (pl. 4.2, fig. 17). The tendency of these spores to form in succession and their morphological similarity are comparable to conidia encountered in species of modern Annellophora, a dematiaceous hyphomycetous fungus.

Etymology: In honor of Dr. Jan Jansonius.
PUBLICATION REFERENCE Kalgutkar RM. 1993. Paleogene fungal palynomorphs from Bonnet Plume Formation, Yukon Territory; Contributions to Canadian Paleontology, Geological Survey of Canada, Bulletin 444, p. 51-105.
K&J REMARKS
TYPE
ALL NAMES (Including synonyms) Diporicellaesporites jansonii
SERIAL NUMBER 378
PUBLIC COMMENTS
 *For source, see Publication Reference.