| Akmonistion | |
|---|---|
| π Image | |
| Holotype fossil | |
| π Image | |
| Reconstruction | |
| Scientific classification π Edit this classification | |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Chondrichthyes |
| Order: | β Symmoriiformes |
| Family: | β Stethacanthidae |
| Genus: | β |
| Species: | β A. zangerli
|
| Binomial name | |
| β Akmonistion zangerli Coates & Sequeira, 2001
| |
Akmonistion is an extinct genus of cartilaginous fish that lived in the Early Carboniferous. The genus contains a single species, A. zangerli, discovered by Stan Wood in 1982.[1] It is distinguished by an unusual enlarged formation of the dorsal fin, called a "spine-brush complex", of unknown function. This is also found in the better known genus Stethacanthus. Remains have only been found near Bearsden in Scotland, where a complete fossil was uncovered in 1982.[2][3][4] It reached 62 cm (24 in) in length.[2] The genus name is derived from the Ancient Greek βakmonβ (βanvilβ) + βistionβ (βsailβ) referring to the appearance of its first dorsal fin.[2]
References
[edit]- ^ Wood, S.P. (1982). "New basal Namurian (Upper Carboniferous) fishes and crustaceans found near Glasgow". Nature. 297 (5867): 574β577. Bibcode:1982Natur.297..574W. doi:10.1038/297574a0.
- ^ a b c Coates, M.I.; Sequeira, S.E.K. (2001). "A new stethacanthid chondrichthyan from the lower Carboniferous of Bearsden, Scotland" (PDF). Journal of Vertebrate Paleontology. 21 (3): 438β459. doi:10.1671/0272-4634(2001)021[0438:anscft]2.0.co;2. Archived from the original (PDF) on 2021-12-20. Retrieved 2018-10-27.
- ^ "Akmonistion zangerli". Palaeobiology Database.
- ^ Geddes, Mohnathan (27 December 2025). "The prehistoric shark found in a suburban town in Scotland". BBC News. Retrieved 27 December 2025.
