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Papuacedrus australis
Taxonomy
Papuacedrus australis was named by Hill and Carpenter (1989). It is not extant. It is considered to be a form taxon. Its type specimen is P-1168, a leaf. Its type locality is Cethana Dam, which is in an Oligocene lagoonal siltstone/sandstone in Australia.
Synonymy list
| Year | Name and author |
|---|---|
| 1989 | Papuacedrus australis Hill and Carpenter pp. 97-99 figs. 5A-E, 6A,B |
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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.
†Papuacedrus australis Hill and Carpenter 1989
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Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| R. S. Hill and R. J. Carpenter 1989 | Branchlets flattened, with leaves in whorls of four. Leaf whorls up to 8 mm long and up to 5 mm wide. Facial leaves with long, narrow attachment, probably fused to the lateral leaves. Free portion of facial leaves smaller than lateral leaves or reduced and scale-like, apex acute. Lateral leaves with strongly developed leaf margin, variable shape, apex acute. Stomata restricted to one leaf surface. External stomatal opening with a pronounced Florin ring with a high ridge, lobing poorly developed and no peripheral groove. Papillae poorly developed or absent. Inner surface of stomata typically cupressaceaus. |
Measurements
No measurements are available
No ecological data are available
Age range: Early/Lower Oligocene or 33.90000 to 28.40000 Ma
Collections (2 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Early/Lower Oligocene | Australia (Tasmania) | Papuacedrus australis (type locality: 166832) | |
| Oligocene | Australia (Tasmania) | Papuacedrus australis (167372) |