NAME Spirotremesporites subovoideus
AGE Middle Eocene.   AGE span: 48.6...37.2 mya
K&J CLASSIFICATION (2000) Fungi Imperfecti, Amerosporae.
FIGURE(S)
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Pl.4fig.47.jpg
FIGURE REFERENCE Sheffy MV, Dilcher DL. 1971. Morphology and taxonomy of fungal spores; Palaeontographica, Abt. B, v. 133 p. 34-51.
SPECIES, AUTHORITY S. subovoideus Elsik 1990a, p. 165.
LOCATION Claiborne Group of Henry County, Tennessee, USA.
ORIG DESCRIPTION* Aseptate, psilate, fungal spores with an elliptical outline that is truncated on one end. The furrow is apparently wrapped around the spore, i.e. the spore axis, from one end of the spore to the other. Overall size is ca. 9 x 20 µm, spore wall is between 0.5 and 1 µm thick. The truncated end is ca. 3 µm wide.
COMMENTS* This is the only Spirotremesporites species with a truncated end.
PUBLICATION REFERENCE Elsik WC. 1990. Hypoxylonites and Spirotremesporites, form genera for Eocene to Pleistocene fungal spores bearing a single furrow; Palaeontographica, Abt. B, v. 216, p.137-169.

Sheffy MV, Dilcher DL. 1971. Morphology and taxonomy of fungal spores; Palaeontographica, Abt. B, v. 133 p. 34-51.
K&J REMARKS The name Inapertisporites subovoideus was proposed by Sheffy & Dilcher (1971), who designated the holotype by slide number and coordinates, and identified it by giving its size by size (which points to the lower right specimen of three illustrated in pl. 15, fig. 7). The two lower specimens remain in the species Inapertisporites subovoides.

The uppermost of the three specimens was chosen by Elsik as the type specimen of the species Spirotremesporites subovoideus; its morphology does not agree with the description for Inapertisporites subovoideus.
TYPE
ALL NAMES (Including synonyms) Inapertisporites subovoideus Sheffy & Dilcher 1971, p. 38, pl. 15, fig. 7 (only upper one of three specimens illustrated: holotype).; Spirotremesporites subovoideus
SERIAL NUMBER 1599
PUBLIC COMMENTS
 *For source, see Publication Reference.