Eurypterida

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Eurypterida

[‚yu̇r·əp′ter·ə·də]
(paleontology)
A group of extinct aquatic arthropods in the subphylum Chelicerata having elongate-lanceolate bodies encased in a chitinous exoskeleton.
References in periodicals archive ?
Eurypterid palaeoecology: palaeobiological, ichnological and comparative evidence for a 'mass-moult-mate' hypothesis.
A eurypterid from the lacustrine facies of the Early Devonian Campbellton Formation, New Brunswick, Canada.
Testing the 'mass-moult-mate' hypothesis of eurypterid palaeoecology.
A) NBMG 10237, a single chelicera of the eurypterid Pterygotus anglicus from delta-front sediments (Kennedy et al.
In addition to fish, the aquatic assemblage includes eurypterids (Miller 2007a, 2007b), ostracods (Jones 1889) and gastropods (Whiteaves 1881).
Near the base of the section plants, ostracods and eurypterids (Miller 1996; Miller 2007a), as well as fish (Kennedy et al.
Although one to one comparisons are rarely possible between ichnofauna and biotaxa, and the possibility of a hitherto unknown trace maker not represented among known body fossils in the Campbellton Formation cannot be fully excluded, we suggest that Monomorphichnus multilineatus as described here is attributed to pterygotid eurypterids.
A 'mass-moult-mate' hypothesis (Braddy 2001; Vrazo and Braddy 2011) suggested that eurypterids migrated en masse into nearshore and marginal environments such as lagoons to mate and then moult, as they probably required a quiet current-free place.
Parahughmilleria provides an addition to the eurypterid fauna, previously represented only by Pterygotus.
2005) described a juvenile eurypterid identified as cf.
In both sub-basins, sparse eurypterid material has been found at low stratigraphic levels in the formation, within a few tens of metres of the basal contact with the Val d'Amour Formation.
Rare and poorly known eurypterids from Willwerath, Germany.