| Basic info | Taxonomic history | Classification | Included Taxa |
| Morphology | Ecology and taphonomy | External Literature Search | Age range and collections |
Symethinae
Taxonomy
Symethinae was named by Goeke (1981). It is not extant. Its type is Symethis.
It was reranked as the family Symethidae by Schweitzer et al. (2010).
It was assigned to Raninoidea by Schweitzer et al. (2010); and to Raninidae by van Bakel et al. (2012), Karasawa et al. (2014), Nyborg et al. (2017), Schweitzer et al. (2018).
It was reranked as the family Symethidae by Schweitzer et al. (2010).
It was assigned to Raninoidea by Schweitzer et al. (2010); and to Raninidae by van Bakel et al. (2012), Karasawa et al. (2014), Nyborg et al. (2017), Schweitzer et al. (2018).
Subtaxa
Synonymy list
| Year | Name and author |
|---|---|
| 1981 | Symethinae Goeke |
| 2010 | Symethidae Schweitzer et al. p. 77 |
| 2012 | Symethinae van Bakel et al. p. 103 |
| 2014 | Symethinae Karasawa et al. p. 258 |
| 2017 | Symethinae Nyborg et al. |
| 2018 | Symethinae Schweitzer et al. p. 35 |
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.
Subfm. †Symethinae Goeke 1981
show all | hide all
Diagnosis
No diagnoses are available
Measurements
No measurements are available
|
|
||||
|
|||||
|
|
||||
|
|
||||
| Source: o = order, c = class, uc = unranked clade | |||||
| References: Aberhan 1992, Fearon and Clapham 2023, Turnsek 1997 | |||||
Age range
Maximum range based only on fossils: base of the Late/Upper Maastrichtian to the top of the Serravallian or 72.20000 to 11.63000 Ma
Minimum age of oldest fossil (stem group age): 66.0 Ma
Minimum age of oldest fossil (stem group age): 66.0 Ma
Collections (7 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Late/Upper Maastrichtian | USA (Mississippi) | Carinatus galebishopi (4127 4131 4133) Raninella sp. (184985) | |
| Paleocene | USA (Alabama) | Symethis johnsoni (87816) | |
| Ypresian | Spain | Eosymethis aragonensis (73288) | |
| Langhian - Serravallian | Kenya | Carinatus carinatus (22303) |