About: Echinognathus

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Echinognathus is a genus of eurypterid, an extinct group of aquatic arthropods. The type and only species of Echinognathus, E. clevelandi, is known from deposits of Late Ordovician age in the United States. The generic name is derived from the New Latin echino- ("spiny") and the Greek gnáthos ("jaw"), in reference to a spiny endognathary (used to handle food) appendage part of the fossil type material.

Attributes	Values
rdf:type	animal
rdfs:label	Echinognathus (en)
rdfs:comment	Echinognathus is a genus of eurypterid, an extinct group of aquatic arthropods. The type and only species of Echinognathus, E. clevelandi, is known from deposits of Late Ordovician age in the United States. The generic name is derived from the New Latin echino- ("spiny") and the Greek gnáthos ("jaw"), in reference to a spiny endognathary (used to handle food) appendage part of the fossil type material. (en)
foaf:depiction
dcterms:subject	Ordovician eurypterids Eurypterids of North America Carcinosomatoidea Fossil taxa described in 1882
Wikipage page ID	15265152 (xsd:integer)
Wikipage revision ID	1073470973 (xsd:integer)
Link from a Wikipage to another Wikipage	Camarotoechia Carcinosoma Carcinosomatidae Carcinosomatoidea Brachiopods List of eurypterid genera Metastoma Eusarcana acrocephalus Eusarcana scorpionis Brachiopod Rhynchonellata United States Utica, New York Megalograptidae Megalograptus Geisonoceras Timeline of eurypterid research Graptolites Greek language Ordovician eurypterids Mixopteridae Mixopterus Telson Leif Størmer Stylonurus Climacograptus Eurypterids of North America Cephalopod Cephalopods Triarthrus Trilobite Lingulida Ctenopterus Eurypterid Eurypterus Carcinosomatoidea Arthropod August Foerste Fossil taxa described in 1882 Charles Doolittle Walcott John Mason Clarke Katian Ordovician Orthocerida New Latin Rudolf Ruedemann Trilobites Lanarkopterus dolichoschelus Mixopterus kiaeri Mixopterus multispinosus Rhinocarcinosoma vaningeni Pentecopterus decorahensis Carcinosoma libertyi Carcinosoma newlini Holmipterus suecicus Megalograptus ohioensis Megalograptus welchi Megalograptus williamsae dbr:Orthograptus dbr:Mastigograptus dbr:Leptolobus dbr:Geniculograptus
sameAs	Echinognathus Echinognathus Echinognathus Echinognathus
dbp:wikiPageUsesTemplate	dbt:Clade dbt:Good_article dbt:Short_description dbt:Speciesbox dbt:Taxonbar dbt:Fossil_range dbt:Eurypterida
thumbnail	wiki-commons:Special:FilePath/Fossils_of_Echinognathus.png?width=300
authority	Walcott, 1882 (en)
display parents	3 (xsd:integer)
fossil range	Katian, (en)
genus	Echinognathus (en)
image caption	The type material of E. clevelandi: a body segment and an endognathary appendage (en)
parent authority	Walcott, 1882 (en)
species	clevelandi (en)
has abstract	Echinognathus is a genus of eurypterid, an extinct group of aquatic arthropods. The type and only species of Echinognathus, E. clevelandi, is known from deposits of Late Ordovician age in the United States. The generic name is derived from the New Latin echino- ("spiny") and the Greek gnáthos ("jaw"), in reference to a spiny endognathary (used to handle food) appendage part of the fossil type material. Echinognathus is only known from fragmentary fossil material, consisting of body segments, an appendage used to handle food and possibly other body segments. The genus is distinguished from other eurypterids by the large number of elongated and curved spines, blade-like in life, on its limbs. Initially assumed to represent a species of Eurypterus, these distinguishing features were quickly noticed and deemed important enough to designate Echinognathus as its own genus. With some additional fossil assigned to Echinognathus in the early 20th century, the genus was noted to be similar to Megalograptus, another eurypterid with spiny limbs. In 1955, Echinognathus and Megalograptus were placed into their own taxonomic family of eurypterids, the Megalograptidae. Based on the proportions of other eurypterids, Echinognathus would have been a medium-sized predator, reaching approximately 45 centimeters (17.7 in) in length. The spines on its limbs were presumably used for active prey capture, securing food and carrying it to the mouth. The fossils of Echinognathus are known from what was once marine environments, and it lived alongside a fauna including graptolites, brachiopods, cephalopods and trilobites. (en)
gold:hypernym	Eurypterid
prov:wasDerivedFrom	wikipedia-en:Echinognathus?oldid=1073470973&ns=0

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