Basic info | Taxonomic history | Classification | Included Taxa |
Morphology | Ecology and taphonomy | External Literature Search | Age range and collections |
Placothyris
Taxonomy
Placothyris was named by Westphal (1970) [Sepkoski's age data: J Bajo J Kimm Sepkoski's reference number: 538]. It is not extant.
It was assigned to Terebratulida by Sepkoski (2002); and to Psebajithyridinae by Williams et al. (2006).
It was assigned to Terebratulida by Sepkoski (2002); and to Psebajithyridinae by Williams et al. (2006).
Species
Synonymy list
Year | Name and author |
---|---|
1970 | Placothyris Westphal |
2002 | Placothyris Sepkoski |
2006 | Placothyris Williams et al. p. 2130 |
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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.
Diagnosis
No diagnoses are available
Measurements
part | N | mean | minimum | maximum | median | s.d. | |
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height | 2 | 1.13 | 0.940 | 1.36 | 1.15 | 0.297 | |
shell height | 1 | 11.9 | - | - | - | - |
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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 Middle Oxfordian to the top of the Early/Lower Valanginian or 161.20000 to 136.40000 Ma
Collections (5 total)
Time interval | Ma | Country or state | Original ID and collection number |
---|---|---|---|
Middle Oxfordian | Spain | P. sp. (68308) | |
Tithonian | Svalbard and Jan Mayen | P. kegeli (163966) | |
Early/Lower Valanginian | Greenland | P. kegeli (62562 62641) | |
Valanginian | Greenland | P. kegeli (62643) |