Eurypteroidea

Extinct superfamily of sea scorpions

Eurypteroidea Temporal range: Late Ordovician–Devonian PreꞒ Ꞓ O S D C P T J K Pg N

Fossil of Eurypterus
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Arthropoda
Subphylum:	Chelicerata
Order:	†Eurypterida
Suborder:	†Eurypterina
Superfamily:	†Eurypteroidea Burmeister, 1843
Families
Paraeurypterus Pentlandopterus Dolichopteridae Eurypteridae Strobilopteridae

Eurypteroidea are an extinct superfamily of eurypterids. It contains three families (Dolichopteridae, Eurypteridae, Strobilopteridae) and two genera of uncertain classification, Paraeurypterus and Pentlandopterus.^[1]

Description

Eurypteroidea, which lived from the Ordovician to Devonian periods, were characterized by their last pair of prosomal (head) appendages, which were developed as swimming legs, carrying paddles formed by the expansion of the two penultimate joints.^[2]

Families

Order Eurypterida Burmeister, 1843
- Suborder Eurypterina Burmeister, 1845
  - Superfamily Eurypteroidea Burmeister, 1845
    - Genus Paraeurypterus Lamsdell, Hoşgör & Selden, 2013
    - Genus Pentlandopterus Lamsdell, Hoşgör & Selden, 2013
    - Family Dolichopteridae Kjellesvig-Waering & Størmer, 1952
    - Family Eurypteridae Burmeister, 1845
    - Family Strobilopteridae Lamsdell & Selden, 2013

References

^ Dunlop, J. A., Penney, D. & Jekel, D. 2015. A summary list of fossil spiders and their relatives. In World Spider Catalog. Natural History Museum Bern, online at http://wsc.nmbe.ch , version 16.0 http://www.wsc.nmbe.ch/resources/fossils/Fossils16.0.pdf (PDF).
^ Størmer, L 1955. Merostomata. Treatise on Invertebrate Paleontology, Part P Arthropoda 2, Chelicerata, P30. as Eurypteracea

Eurypterids

Kingdom: Animalia
Phylum: Arthropoda
Subphylum: Chelicerata
Clade: Euchelicerata
Clade: Prosomapoda
Clade: Planaterga
Clade: Dekatriata
Clade: Sclerophorata

Taxonomy

Genera

List of eurypterid genera

Suborder
Stylonurina

Rhenopteroidea	Rhenopteridae
Stylonuroidea	Parastylonuridae Stylonuridae
Kokomopteroidea	Kokomopteridae Hardieopteridae
Mycteropoidea	Drepanopteridae Hibbertopteridae Mycteroptidae

Suborder
Eurypterina

Onychopterelloidea

Onychopterellidae

Moselopteroidea

Moselopteridae

Eurypteroidea

Infraorder
Diploperculata

Carcinosomatoidea	Carcinosomatidae Megalograptidae Mixopteridae
Waeringopteroidea	Waeringopteridae
Adelophthalmoidea	Adelophthalmidae
Pterygotioidea	Hughmilleriidae Slimonidae Pterygotidae