NAME Monoporisporites rigens
AGE Late Paleocene-Early Eocene.   AGE span: 58.7...40.4 mya
K&J CLASSIFICATION (2000) Fungi Imperfecti, Amerosporae.
FIGURE(S)
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Pl.3fig.11.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 M. rigens Kalgutkar 1997, p. 217, pl. 3, fig. 10.
LOCATION Kanguk Peninsula, Axel Heiberg Island, Northwest Territories, Canada.
ORIG DESCRIPTION* Unicellular, smooth, brown, spherical to globose spores with a circular outline. Spore wall rigid but not thick, with a minute simple pore at one end. Spores 11-13 µm in diameter.
COMMENTS* The spores of Monoporisporites stoveri Elsik 1968 are slightly larger and have bulging pores; those of Monoporisporites annulatus van der Hammen 1954 have annulate pores.

Etymology: Named for the rigid spore wall.
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) Monoporisporites rigens
SERIAL NUMBER 1005
PUBLIC COMMENTS
 *For source, see Publication Reference.