NAME Trichothyrites ostiolatus
AGE Oligocene-Miocene.   AGE span: 33.9...5.332 mya
K&J CLASSIFICATION (2000) Ascomycetes, Microthyriales.
FIGURE(S)
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Pl.22fig.4.jpg
FIGURE REFERENCE Cookson IC. 1947. Fossil fungi from Tertiary deposits in the southern hemisphere. Part I; Proceedings of the Linnean Society of New South Wales, v. 72, p. 207-214.
SPECIES, AUTHORITY T. ostiolatus (Cookson) Kalgutkar & Jansonius 2000
LOCATION Australia, New Zealand and the Kerguelen Archipelago.
ORIG DESCRIPTION* Epiphyllous; mycelium sparse, brown, hyphae about 2.6 µm thick. Ascoma stomate, flattened, 106 µm in diameter, composed of somewhat tortuous hyphae; cells cubical or rectangular, 2-5 µm thick, thick walled; margin uneven and slightly fimbriate, stoma round 13 µm in diameter, formed by the breaking down of the central cells.
COMMENTS* On a leaf of Oleinites willisii from Yallourn, Victoria. The limits of this species are less clearly defined than are those of the three preceding species [A. sinuatus, A. delicatissimus and A.minutus] of Asterothyrites. One reason is the fact that the single specimen on which it is based is not perfect, the margin being incomplete in several places. Nevertheless, it is clearly distinct from the previous types and thus warrants description.
PUBLICATION REFERENCE Cookson IC. 1947. Fossil fungi from Tertiary deposits in the southern hemisphere. Part I; Proceedings of the Linnean Society of New South Wales, v. 72, p. 207-214.
K&J REMARKS The species shows a round ostiole, surrounded by a ring of small, thick-walled cells. Kalgutkar and Jansonius (2000) assign it to Trichothyrites.
TYPE
ALL NAMES (Including synonyms) Asterothyrites ostiolatus Cookson 1947a, p. 210, pl. 12, fig. 11.; Trichothyrites ostiolatus
SERIAL NUMBER 1737
PUBLIC COMMENTS
 *For source, see Publication Reference.