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Myrtaciphyllum brochidromum
Taxonomy
Myrtaciphyllum brochidromum was named by Hill and Merrifield (1993) [Holotype, only specimen observed.]. It is considered to be a form taxon. Its type specimen is Holotype: WAM P.84.63b, stored in the Western Australian Museum., a leaf, and it is an impression. Its type locality is West Dale, which is in an Eocene/Oligocene channel lag siltstone/sandstone in Australia.
Synonymy list
| Year | Name and author |
|---|---|
| 1993 | Myrtaciphyllum brochidromum Hill and Merrifield p. 318 figs. 9F-H |
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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.
†Myrtaciphyllum brochidromum Hill and Merrifield 1993
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Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| R. S. Hill and H. E. Merrifield 1993 | Only the basal half of the leaf known. Venation pattern fine, secondary veins depart from the primary vein at a relatively oblique angle and loop into a relatively poorly formed intramarginal vein. Stomates confined to one leaf surface, randomly arranged. Subsidiary cell pattern probably brachyparacytic. Epidermal cell walls straight, trichomes absent. Epidermis ofnon-stomatiferous surface featureless, except for occasional pits which may represent glandular openings. |
Measurements
No measurements are available
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| Source: p = phylum | |||||
| Reference: Kiessling 2009 | |||||
Age range: base of the Middle Eocene to the top of the Oligocene or 47.80000 to 23.03000 Ma
Collections: one only
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Middle Eocene - Oligocene | Australia (Western Australia) | Myrtaciphyllum brochidromum (type locality: 167545) |