Definitions for eurypterid
yʊˈrɪp tə rɪd, yə-eu·rypterid

Princeton's WordNetRate this definition:0.0 / 0 votes

1. eurypteridnoun

   large extinct scorpion-like arthropod considered related to horseshoe crabs

WiktionaryRate this definition:0.0 / 0 votes

1. eurypteridnoun

   A large, prehistoric, carnivorous arthropod, of the order Eurypterida, thought to be one of the first animals to venture onto land.

WikipediaRate this definition:0.0 / 0 votes

1. Eurypterid

   Eurypterids, often informally called sea scorpions, are a group of extinct arthropods that form the order Eurypterida. The earliest known eurypterids date to the Darriwilian stage of the Ordovician period 467.3 million years ago. The group is likely to have appeared first either during the Early Ordovician or Late Cambrian period. With approximately 250 species, the Eurypterida is the most diverse Paleozoic chelicerate order. Following their appearance during the Ordovician, eurypterids became major components of marine faunas during the Silurian, from which the majority of eurypterid species have been described. The Silurian genus Eurypterus accounts for more than 90% of all known eurypterid specimens. Though the group continued to diversify during the subsequent Devonian period, the eurypterids were heavily affected by the Late Devonian extinction event. They declined in numbers and diversity until becoming extinct during the Permian–Triassic extinction event (or sometime shortly before) 251.9 million years ago. Although popularly called "sea scorpions", only the earliest eurypterids were marine; many later forms lived in brackish or fresh water, and they were not true scorpions. Some studies suggest that a dual respiratory system was present, which would have allowed for short periods of time in terrestrial environments. The name Eurypterida comes from the Ancient Greek words εὐρύς (eurús), meaning 'broad' or 'wide', and πτερόν (pterón), meaning 'wing', referring to the pair of wide swimming appendages present in many members of the group. The eurypterids include the largest known arthropods ever to have lived. The largest, Jaekelopterus, reached 2.5 meters (8.2 ft) in length. Eurypterids were not uniformly large and most species were less than 20 centimeters (8 in) long; the smallest eurypterid, Alkenopterus, was only 2.03 centimeters (0.80 in) long. Eurypterid fossils have been recovered from every continent. A majority of fossils are from fossil sites in North America and Europe because the group lived primarily in the waters around and within the ancient supercontinent of Euramerica. Only a handful of eurypterid groups spread beyond the confines of Euramerica and a few genera, such as Adelophthalmus and Pterygotus, achieved a cosmopolitan distribution with fossils being found worldwide.

ChatGPTRate this definition:0.0 / 0 votes

1. eurypterid

   Eurypterids, often referred to as sea scorpions, were an extinct group of arthropods that are related to modern spiders and scorpions. They lived during the period from the Ordovician to the Permian, approximately 467.3 to 251.9 million years ago. These creatures were aquatic predators, varying in size and among the largest arthropods ever to have lived. The name "eurypterid" comes from Greek words meaning "broad wing", referring to the broad, flat exoskeleton many species had.

WikidataRate this definition:0.0 / 0 votes

1. Eurypterid

   Eurypterids are an extinct group of arthropods related to arachnids which include the largest known arthropods that ever lived. They are members of the extinct order Eurypterida; which is the most diverse Paleozoic chelicerate order in terms of species. The name Eurypterida comes from the Greek word eury- meaning "broad" or "wide" and the Greek word pteron meaning "wing", for the pair of wide swimming appendages on the first fossil eurypterids discovered. Eurypterids predate the earliest fishes. The largest, such as Jaekelopterus, reached 2.5 metres in length, but most species were less than 20 centimetres. They were formidable predators that thrived in warm shallow water, in both seas and lakes, in the Ordovician to Permian from 460 to 248 million years ago. Although informally called "sea scorpions", only the earliest ones were marine, and they were not true scorpions. According to theory, the move from the sea to fresh water probably occurred by the Pennsylvanian subperiod. Eurypterids are believed to have undergone ecdysis, making their significance in ecosystems difficult to assess, because it can be difficult to tell a fossil moult from a true fossil carcass. They went extinct during the Permian–Triassic extinction event 252.2 million years ago, and their fossils have a near global distribution.

Matched Categories

1. • Arthropod

How to pronounce eurypterid?

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Numerology

1. Chaldean Numerology

   The numerical value of eurypterid in Chaldean Numerology is: 2

2. Pythagorean Numerology

   The numerical value of eurypterid in Pythagorean Numerology is: 6

References

1. ^ Princeton's WordNet
   http://wordnetweb.princeton.edu/perl/webwn?s=eurypterid
2. ^ Wiktionary
   https://en.wiktionary.org/wiki/Eurypterid
3. ^ Wikipedia
   https://en.wikipedia.org/wiki/Eurypterid
4. ^ ChatGPT
   https://chat.openai.com
5. ^ Wikidata
   https://www.wikidata.org/w/index.php?search=eurypterid