eurypterid


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Words related to eurypterid

large extinct scorpion-like arthropod considered related to horseshoe crabs

References in periodicals archive ?
The Eastport invertebrate fauna, particularly the mollusks and eurypterids, can be correlated with the 'Downtonian' (= Pridoli) of Britain and eastern Canada, in beds that have been considered firmly to be of Silurian age (Bastin and Williams 1914; Churchill-Dickson 2004).
Thelodonts, osteostracans, acanthodians and eurypterids are often found associated together along with ostracods and eurypterids in nearshore fades in BA1 environments (e.g., Denison 1956; Turner 1999).
A single chelicera of the eurypterid Pterygotus anglicus (NBMG 10237; Miller 2007a) has been found, as well as partial fin spines tentatively attributed to the shark Doliodusproblematicus (NBMG 10237, 12074; see Miller et al.
In the 'Atholville Beds' of the Campbellton Formation only a single eurypterid species, Pterygotus anglicus, has been identified.
Summary of a revision of New York State Ordovician eurypterids: implications for eurypterid palaeoecology, diversity and evolution.
Chasmataspidida.--These little-known late Cambrian-mid Devonian marine euchelicerates are characterized by a long postabdomen of nine segments, but share prosomal features with both eurypterids and xiphosurans, rendering their monophyly and affinities uncertain.
Among the fossils Whiteaves described were eurypterids. New discoveries of both vertebrates and arthropods from the "Atholville Beds", beginning in the 1990s, resulted in a redescription of the eurypterid fauna (Miller 2007a, b) and assignment of all known specimens to Pterygotus anglicus Agassiz 1844, the large pterygotid first described from Scotland.
Explanation of abbreviations used in references: B (bivalves), Br (brachiopods), Eu (eurypterid), F (fish), G (gastropod), O (ostracode) and Ph (phyllocarid).
There is still much to be learned from, and about, this diminutive Silurian predator that shared the seas with much larger eurypterids, and it is all thanks to Carl Fechko's discovery and generous donation of his unintended catch to the ROM.
Eurypterids, giant ravenous sea scorpions, and other invertebrate predators hunted fishes.
This year, he returns to examine outcrops of ancient tropical seabed deposits on the Grand Rapids Uplands, where extraordinary remains of rare eurypterids ("sea scorpions"), horseshoe crabs, and other odd joint-legged animals have been uncovered.
This year, he will return to examine outcrops of ancient tropical seabed deposits along the shore of Hudson Bay, near Churchill, where extraordinary remains of rare eurypterids ("sea scorpions"), horseshoe crabs, and other odd joint-legged animals have been uncovered.
Studies by ROM paleontologist Dave Rudkin and colleages of 450- to 400-million-year-old fossil arthropods--including trilobites, eurypterids, and horseshoe crabs--from the Hudson Bay and James Bay lowlands are revealing exciting new information on ancient biodiversity and evolutionary dynamics.
In prehistoric times, the ocean floor that is now New York State was home to multitudes of trilobites and eurypterids - groups of arthropods that are now extinct.