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Nothofagus cooksoni
Taxonomy
Nothofagus cooksoni was named by Hill (1991) [Specimens examined: LRR1-1081, 1082, 1083, 1385.]. It is not extant. It is considered to be a form taxon. Its type specimen is LRR1-1083, a seed/fruit (Cupule). Its type locality is Little Rapid River 1, which is in an Oligocene fluvial-lacustrine mudstone in Australia.
Sister species lacking formal opinion data
Synonymy list
| Year | Name and author |
|---|---|
| 1991 | Nothofagus cooksoni Hill p. 79 fig. 5,6 |
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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.
†Nothofagus cooksoni Hill 1991
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Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| R. S. Hill 1991 | Cupule 2-valved, valves 6 mm long, 6 mm wide (two specimens measured). Peduncle up to 8 mm long, straight, narrow at attachment to cupules and through to base. A pair of lamellae sometimes present near the base of the peduncle. Cupule valves woody, gaping when mature, free for approximately half their length. Two lamellae on each cupule valve. At least one dimerous fruit present in each cupule, approximately equal in length to the cupule valves. Cuticular pattern unknown. |