Stylonuroidea
| Stylonuroidea | |
|---|---|
Scientific classification 
| |
| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Arthropoda |
| Subphylum: | Chelicerata |
| Order: | †Eurypterida |
| Suborder: | †Stylonurina |
| Superfamily: | †Stylonuroidea |
| Families | |
| |
Stylonuroidea are an extinct superfamily of eurypterids. They were members of the subphylum Chelicerata.
Stylonuroidea, which lived from the Ordovician to Lower Permian periods, were characterized by their last pair of prosomal (head) appendages, which were developed as walking legs, or less commonly developed as swimming legs with paddles formed by the expansion of the two or three penultimate joints.[1]
Families and genera
- Class Merostomata Dana, 1852
- Order Eurypterida Burmeister, 1843
- Suborder Stylonurina Diener, 1924
- Superfamily Stylonuroidea Diener, 1924
- Family (2):
- Superfamily Stylonuroidea Diener, 1924
- Suborder Stylonurina Diener, 1924
- Order Eurypterida Burmeister, 1843
- Parastylonuridae Waterston, 1979
- Parastylonurus Kjellesvig-Waering, 1966
- Stylonurella Kjellesvig-Waering, 1966
- Stylonuridae Diener, 1924
- Ctenopterus Clarke & Ruedermann, 1912
- Laurieipterus Kjellesvig-Waering, 1966
- Pagea Waterston, 1962
- Stylonurus Page, 1856
References
- ^ Størmer, L 1955. Merostomata. Treatise on Invertebrate Paleontology, Part P Arthropoda 2, Chelicerata, P36. as Stylonuracea