| Basic info | Taxonomic history | Classification | Included Taxa |
| Morphology | Ecology and taphonomy | External Literature Search | Age range and collections |
Posicomta
Taxonomy
Posicomta was named by Grunt (1986) [Sepkoski's age data: P Leon-u P Guad-l Sepkoski's reference number: 881,1239]. Its type is Posicomta gundarensis.
It was assigned to Spirigerellinae by Williams et al. (2002); and to Spiriferida by Sepkoski (2002).
It was assigned to Spirigerellinae by Williams et al. (2002); and to Spiriferida by Sepkoski (2002).
Species
Synonymy list
| Year | Name and author |
|---|---|
| 1986 | Posicomta Grunt |
| 2002 | Posicomta Sepkoski |
| 2002 | Posicomta Williams et al. p. 1540 |
Is something missing? Join the Paleobiology Database and enter the data
|
|
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. †Posicomta Grunt 1986
show all | hide all
†Posicomta advena Grant 1976
†Posicomta dolabrata Grant 1976
†Posicomta gundarensis Grunt 1986
†Posicomta subsolana Grant 1976
†Posicomta zaalaica Grunt 1986
Diagnosis
No diagnoses are available
Measurements
| part | N | mean | minimum | maximum | median | s.d. | |
|---|---|---|---|---|---|---|---|
| shell height | 74 | 3.31 | 0.700 | 10.2 | 3.60 | 2.20 |
|
|
||||
|
|
||||
|
|||||
|
|
||||
|
|
||||
| Source: subo = suborder, c = class, p = phylum, uc = unranked clade | |||||
| References: Nesnidal et al. 2013, Aberhan et al. 2004 | |||||
Age range: base of the Kungurian to the top of the Capitanian or 283.30000 to 259.51000 Ma
Collections (36 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Kungurian | Tajikistan | P. gundarensis (42913 182702 182703 182704 182705 182706 182707 182708) | |
| Kungurian | Oman | P. advena (166923) | |
| Roadian | Thailand (Kanchanaburi) | Composita subsolana (40855 40856) | |
| Roadian | Kyrgyzstan | P. zaalaica (109485) | |
| Roadian | Thailand (Ratchaburi) | Composita dolabrata (40936) Composita subsolana (40864 40865 40866 40867) | |
| Roadian | Thailand (Trang) | Composita advena (40869 40870 40872 40873 40874 40875 40876 40877 40878 40879 40894 40896 40897 40898 40899) | |
| Capitanian | Tunisia | Composita advena (107086 107087 107088 107091) |