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Plekonella
Taxonomy
Plekonella was named by Campbell (1953) [Sepkoski's age data: P Guad P Djhu Sepkoski's reference number: 427,538].
It was assigned to Wellerellinae by Williams et al. (2002); and to Rhynchonellida by Sepkoski (2002).
It was assigned to Wellerellinae by Williams et al. (2002); and to Rhynchonellida by Sepkoski (2002).
Species
Synonymy list
| Year | Name and author |
|---|---|
| 1953 | Plekonella Campbell p. 17 |
| 2002 | Plekonella Sepkoski |
| 2002 | Plekonella Williams et al. p. 1258 |
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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.
G. †Plekonella Campbell 1953
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†Plekonella acuta Campbell 1953
†Plekonella campbelli Waterhouse 1964
†Plekonella iniquitas Waterhouse 1967
†Plekonella multicostata Waterhouse 1964
†Plekonella rara Waterhouse 1986
†Plekonella southlandensis Fletcher 1952
Diagnosis
No diagnoses are available
Measurements
| part | N | mean | minimum | maximum | median | s.d. | |
|---|---|---|---|---|---|---|---|
| shell height | 29 | 5.04 | 2.00 | 11.6 | 4.90 | 2.83 |
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| Source: o = order, c = class, p = phylum, uc = unranked clade | |||||
| References: Nesnidal et al. 2013, Aberhan et al. 2004 | |||||
Age range: base of the Sakmarian to the top of the Changhsingian or 293.52000 to 251.90200 Ma
Collections (48 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Sakmarian | New Zealand | P. sp. (62063) | |
| Artinskian | New Zealand (Southland) | P. campbelli (41775) | |
| Artinskian | Australia (Queensland) | P. rara (66265 66271) P. sp. (66234 102852 102862 102869 103442 103443) | |
| Kungurian | New Zealand (Southland) | P. acuta (41776) P. southlandensis (52844) | |
| Kungurian | New Zealand | P. acuta (52772) P. southlandensis (52771) | |
| Roadian | New Zealand (Southland) | P. acuta (41781) | |
| Wordian | New Zealand (Southland) | P. southlandensis (41767 41784 41785) | |
| Wordian | New Zealand | P. acuta (52773) | |
| Capitanian | New Zealand (Southland) | P. acuta (41777) | |
| Wuchiapingian | Australia (Tasmania) | P. acuta (51314) | |
| Wuchiapingian | New Zealand (Southland) | P. acuta (39923 39925) P. multicostata (39926 39928 39929 39930 39931 41768 41771 41774) | |
| Wuchiapingian | Australia (Queensland) | P. acuta (97269 103145 105009 120346 120350 120539 123235) P. southlandensis (101569 104023) | |
| Changhsingian | New Zealand | P. acuta (52751 52753 52759 52767 52780) P. iniquitas (52244 52245 52776) |