| Basic info | Taxonomic history | Classification | Included Taxa |
| Morphology | Ecology and taphonomy | External Literature Search | Age range and collections |
Aka
Taxonomy
Aka was named by De Laubenfels (1936) [Sepkoski's age data: Tr Carn-l R]. It is extant.
It was assigned to Haplosclerida by Sepkoski (2002); and to Adociidae by Finks et al. (2004).
It was assigned to Haplosclerida by Sepkoski (2002); and to Adociidae by Finks et al. (2004).
Species
Species lacking formal opinion data
Synonymy list
| Year | Name and author |
|---|---|
| 1936 | Aka De Laubenfels |
| 2002 | Aka Sepkoski |
| 2004 | Aka Finks et al. p. 42 |
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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
No measurements are available
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| Source: o = order, c = class | |||||
| References: Kiessling 2004, Whittington et al. 1997 | |||||
Age range: base of the Julian to the top of the Early/Lower Albian or 235.00000 to 109.00000 Ma
Collections (12 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Ladinian - Carnian | Italy | A. cassianensis (182585) A. sp. (182570) | |
| Carnian | Italy | A. cassianensis (67620) | |
| Julian | Italy | A. cassianensis (34691) | |
| Late/Upper Sinemurian | Morocco | A. sp. (24140) | |
| Middle Oxfordian - Late/Upper Oxfordian | Germany | A. muelleri (74033) A. sp. (68549) | |
| Middle Oxfordian - Late/Upper Oxfordian | Switzerland | A. sp. (24200) | |
| Early/Lower Kimmeridgian | Germany (Bavaria) | A. sp. (25412) | |
| Early/Lower Kimmeridgian | Germany (Lower Saxony) | A. muelleri (24127) | |
| Early/Lower Kimmeridgian | Germany | A. muelleri (74037) | |
| Early/Lower Albian | Spain | A. muelleri (56771) |