| Palaeomylus | |
|---|---|
| |
| Palaeomylus upper and lower tooth plates from two similarly sized individuals from Wisconsin and Ohio. | |
Scientific classification 
| |
| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | †Placodermi |
| Order: | †Ptyctodontida |
| Family: | †Ptyctodontidae |
| Genus: | †Palaeomylus Woodward, 1891[1] |
| Type species | |
| †Palaeomylus frangens (Newberry, 1878)
| |
Palaeomylus (meaning 'ancient grinder') is an extinct Devonian ptychodontid placoderm fish.
There are seven species accepted in this genus:[1][2]
- Palaeomylus hussakofi Bryant, 1935
- Palaeomylus lunaeformis Hussakof & Bryant, 1919
- Palaeomylus minor Bryant, 1935
- Palaeomylus predator Eastman, 1898
- Palaeomylus crassus (Newberry, 1873)
- Palaeomylus frangens (Newberry, 1878)
- Palaeomylus greenei (Newberry, 1889)
Etymology
[edit]The generic name is derived from Greek (Palaeo, meaning "ancient") and (mylos, meaning "grinder").
Not to be confused with the junior homonym Palaeomylus (Meng, Wyss, Hu, Wang, Bowen & Koch, 2005), which is an early diverging member of the mammal group Glires.[3]
Discovery
[edit]P. greenei, P. crassus, and the type species P. frangens were originally classified as a species of Rhynchodus, before being moved to a new genus, Palaeomylus, in 1891. The first was found in Wisconsin, while the latter two species were found in Ohio. P. predator was found near Gerolstein, Germany.[4]
References
[edit]- ^ a b "Palaeomylus Woodward, 1891". Global Biodiversity Information Facility. Retrieved 3 July 2024.
- ^ "Palaeomylus Woodward, 1891". The Paleobiology Database. Retrieved 3 July 2024.
- ^ Meng, Jin; Wyss, André R.; Hu, Yaoming; Wang, Yuanqing; Bowen, Gabriel J.; Koch, Paul L. (May 2005). "Glires (Mammalia) from the Late Paleocene Bayan Ulan Locality of Inner Mongolia". American Museum Novitates (3473): 1–25. doi:10.1206/0003-0082(2005)473[0001:GMFTLP]2.0.CO;2. ISSN 0003-0082.
- ^ Eastman, C. R. (1898). "Dentition of Devonian Ptyctodontidae (Continued)". The American Naturalist. 32 (380): 545–560. doi:10.1086/276968. ISSN 0003-0147. JSTOR 2454480.