Arachnida

PaleoDB taxon number: 272530

Alternative spelling: Orthosterni

Full reference: R. I. Pocock. 1911. A Monograph of the Terrestrial Carboniferous Arachnida of Great Britain 1-84

Parent taxon: Scorpiones according to J. A. Dunlop et al. 2013

Sister taxa: Archaeoctonoidea, Bilobosternina, Branchioscorpionina, Brontoscorpio, Chaerilobuthidae, Eramoscorpius, Gondwanascorpio, Gymnoscorpius, Holosternina, Hubeiscorpio, Liassoscorpionidae, Liassoscorpionides, Lobosternina, Meristosternina, Mesoscorpionina, Palaeomachus, Palaeotrilineatidae, Parioscorpio, Permomatveevia, Proscorpiidae, Titanoscorpio, Wattisonia

Subtaxa: Buthoidea, Chactoidea, Corniops, Scorpionoidea

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Ecology: