30571 - Top Rare 0.83 Inch Encrinurus sp Silurian Trilobite - China

† Encrinurus, Emmrich 1844 (trilobite)
Trilobita - Phacopida - Encrinuridae

 
PaleoDB taxon number: 21560

Parent taxon: Encrinurinae according to F. Nikolaisen 1961

See also Harrington and Leanza 1957, Jell and Adrain 2002, Phleger 1933, Raymond 1916, Sepkoski 2002 and Warburg 1925

Sister taxa: Billevittia, Brianurus, Encrinuroides, Erratencrinurus, Frencrinuroides, Johntempleia, Physemataspis, Walencrinuroides

Subtaxa: Encrinurus borenorensis, Encrinurus confusevarus, Encrinurus deomenos, Encrinurus diabolus, Encrinurus expansus, Encrinurus fimbriatus, Encrinurus hagshawensis, Encrinurus hastula, Encrinurus ishii, Encrinurus jini, Encrinurus lamonti, Encrinurus laurentinus, Encrinurus longi, Encrinurus mamelon, Encrinurus mullochensis, Encrinurus multisegmentatus, Encrinurus niquivilensis, Encrinurus nodai, Encrinurus octonarius, Encrinurus praecursor, Encrinurus punctatus, Encrinurus reflexus, Encrinurus rosensteinae, Encrinurus similis, Encrinurus spicatus, Encrinurus squarrosus, Encrinurus stateratus, Encrinurus stenorhachis, Encrinurus striatus, Encrinurus subtrigonalis, Encrinurus tosensis, Encrinurus trispinosus, Encrinurus yokokurensis

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Type: Entomostracites punctatus

Ecology: fast-moving low-level epifaunal carnivore

Environments: marine (54 collections), reef, buildup or bioherm (17), carbonate (16), offshore (8), deep subtidal ramp (5), deep subtidal shelf (5), offshore shelf (5), open shallow subtidal (4), slope (4), shallow subtidal (3), deep subtidal (2), transition zone/lower shoreface (2), offshore ramp (2), (1), basinal (siliciclastic) (1), deep-water (1), lagoonal/restricted shallow subtidal (1), offshore (1), shoreface (1), peritidal (1)

Age range: 468.1 to 412.3 Ma

Distribution:

• Devonian of China (1 collection), Tajikistan (1)

• Silurian to Devonian of Austria (1)

• Silurian of Australia (11), Belarus (2), Canada (62: Manitoba, Northwest Territories, Nunavut, Ontario, Quebec, Québec), China (8), the Czech Republic (1), Estonia (3), Greenland (3), Ireland (1), Italy (1), Latvia (2), Lithuania (1), Morocco (1), Norway (1), Sweden (15), Tajikistan (4), Ukraine (17), the United Kingdom (30), United States (43: Arkansas, California, Illinois, Indiana, Iowa, Maryland, Michigan, Nevada, New York, Wisconsin)

• Niagaran of United States (1: Indiana)

• Ordovician to Silurian of Canada (4: British Columbia, Québec)

• Ordovician of Argentina (3), Australia (2), Belgium (1), Canada (11: Manitoba, Nunavut, Ontario, Quebec), China (1), Norway (2), Sweden (5), the United Kingdom (9), United States (6: Nevada, New York, Wisconsin)

• Arenig of Argentina (1)