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Pterostoma hirsutus

Cycadopsida - Cycadales - Zamiaceae

Taxonomy
Pterostoma hirsutus was named by Hill and Pole (1994) [Holotype, scanning electron microscope stub. Other specimens examined: S-282, SB-681, 682, 807, 808 (light microscope slides). Type locality: The 0 m level of the Cool Store section at Regatta Point, Macquarie Harbour, Tasmania, Australia.]. It is considered to be a form taxon. Its type specimen is Holotype: S-283, housed in the Department of Plant Science, University of Tasmania., a cuticle, and it is a compression fossil. Its type locality is Regatta Point - Cool Store mud, which is in an Eocene fluvial-deltaic mudstone in Australia.

Synonymy list
YearName and author
1994Pterostoma hirsutus Hill and Pole p. 129 figs. Plate II, 1-4

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RankNameAuthor
kingdomPlantae
subkingdomEmbryophyta
phylumCycadophytaBessey 1907
classCycadopsidaBrongniart 1843
RankNameAuthor
orderCycadalesDumortier 1829
familyZamiaceaeHoraninow 1834
genusPterostoma
specieshirsutus

If no rank is listed, the taxon is considered an unranked clade in modern classifications. Ranks may be repeated or presented in the wrong order because authors working on different parts of the classification may disagree about how to rank taxa.

Pterostoma hirsutus Hill and Pole 1994
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Diagnosis
ReferenceDiagnosis
R. S. Hill and M. S. Pole 1994Outer surface of stomatiferous cuticle with thick cuticular ridges, trichome bases very common, no epidermal cell pattern indicating the presence of a fine network of veins between the major veins.
Measurements
No measurements are available
No ecological data are available

Age range: Early/Lower Eocene or 56.00000 to 48.07000 Ma

Collections (2 total)


Time interval Ma Country or state Original ID and collection number
Early/Lower Eocene56.0 - 48.07Australia (Tasmania) Pterostoma hirsutus (type locality: 167648 167651)