†Eurypterida

<==o Eurypterida Burmeister, 1843 [Gigantostraca Haeckel, 1866; Cyrtoctenida Størmer & Waterston, 1968] (meriskorpionit; seascorpions)
   |?- †Glyptoscorpius
   |--o †Eurypteracea
   |  |--o †Hughmilleriidae
   |  |  |?- †Hastimima
   |  |  |-- †Hughmilleria
   |  |  |-- †Slimonia
   |  |  |-- †Salteropterus
   |  |  |-- †Grossopterus
   |  |  `-- †Lepidoderma
   |  |--o †Pterygotidae
   |  |  `-- †Pterygotus
   |  |--o †Eurypteridae
   |  |  |-- †Eurypterus
   |  |  |-- †Onychopterella
   |  |  `-- †Tylopterella
   |  |--o †Carcinosomatidae
   |  |  `-- †Carcinosoma
   |  |--o †Mixopteridae
   |  |  `-- †Mixopterus
   |  `--o †Megalograptidae
   |     |-- †Megalograptus
   |     `-- †Echinognathus
   `--o †Stylonauracea
      |--o †Stylonuridae
      |  |-- †Stylonurus
      |  |-- †Drepanopterus
      |  |-- †Brachyopterus
      |  |-- †Ctenopterus
      |  |-- †Tarsopterella
      |  |-- †Melbournopterus
      |  `-- †Campulocephalus
      |--o †Dolichoteridae
      |  |-- †Dolichopterus
      |  `-- †Strobilopterus
      |--o †Rhenopteridae
      |  `-- †Rhenopterus
      `--o †Mycteropidae
         `-- †Mycterops

Reference(s):

Agnér, I. B., 199?: Eurypterida
–iNet: http://www.ettnet.se/~iba/Fosspict/pict7.htm
Kazlev, M. A., 2000: Eurypterida - All about “Sea scorpions”.
–iNet: The Kheper Site: http://www.kheper.auz.com/gaia/biosphere/arthropods/eurypterida/index.html [offline]

Mikko's Phylogeny Archive

†Eurypterida – sea scorpions

Reference(s):