Stylonuridae
| Stylonuridae | |
|---|---|
 | |
| Scientific classification | |
| Kingdom: | Animalia |
| Phylum: | Arthropoda |
| Subphylum: | Chelicerata |
| Class: | Merostomata |
| Order: | †Eurypterida |
| Superfamily: | †Stylonuroidea |
| Family: | †Stylonuridae |
Stylonuridae are an extinct family of prehistoric eurypterids within the Superfamily Stylonuroidea.
Description
Stylonuridae, which lived from the Ordovician to Lower Permian periods, were small to very large forms with scales developing into tubercules and knobs. The prosoma (head) exhibited variable shape, with arcuate compound eyes located subcentrally, or anteriorly. Their abdomens were slender. Their walking legs were long and powerful, sometimes characterized by spines. Most genera did not have swimming legs.[1]
Genera
- Class Merostomata Dana, 1852
- Order Eurypterida Burmeister, 1843
- Suborder Stylonurina Diener, 1924
- Superfamily Stylonuroidea Diener, 1924
- Family Stylonuridae Diener, 1924
- Genus Stylonurus Page, 1856
- Genus Drepanopterus Laurie, 1892
- Genus Brachyopterus Størmer, 1951
- Genus Ctenopterus Clarke & Ruedemann, 1912
- Genus Tarsopterella Størmer, 1951
- Genus Melbournopterus Caster & Kjellesvig-Waering, 1953
- Genus Campylocephalus Eichwald, 1860
- Family Stylonuridae Diener, 1924
- Superfamily Stylonuroidea Diener, 1924
- Suborder Stylonurina Diener, 1924
- Order Eurypterida Burmeister, 1843
References
- ↑ Størmer, L 1955. Merostomata. Treatise on Invertebrate Paleontology, Part P Arthropoda 2, Chelicerata, P: 36.
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