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† Bumastus, Murchison 1839 (trilobite)
Trilobita - Corynexochida - Illaenidae

PaleoDB taxon number: 19516

Parent taxon: Illaenidae according to E. Warburg 1925

See also Jell and Adrain 2002, Raymond 1916 and Sepkoski 2002

Sister taxa: Bumastoides, Caudillaenus, Cryptonymus, Deucalion, Dysplanus, Eastonillaenus, Ectillaenus, Harpillaenus, Hyboaspis, Hydrolaenus, Illaeninae, Illaenus, Nanillaenus, Octillaenus, Panderinae, Parillaenus, Platillaenus, Ptilillaenus, Stenopareia, Thaleops, Ulugtella, Zbirovia, Zdicella, Zetillaenus

Subtaxa: Bumastus (Bumastella), Bumastus (Bumastus), Bumastus agmakros, Bumastus barriensis, Bumastus cuniculus, Bumastus dayi, Bumastus decipiens, Bumastus graftonensis, Bumastus indeterminatus, Bumastus insignis, Bumastus ioxus, Bumastus kattoi, Bumastus niagarensis, Bumastus nudus, Bumastus orbicaudatus, Bumastus rowleyi, Bumastus sakoi, Bumastus tenuis, Bumastus trentonensis, Bumastus vulsus

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Ecology: nektobenthic carnivore

Environments: marine (24 collections), reef, buildup or bioherm (19), carbonate (15), shallow subtidal (8), deep subtidal (5), open shallow subtidal (5), offshore (4), sand shoal (4), deep subtidal shelf (4), deep subtidal ramp (3), offshore ramp (3), transition zone/lower shoreface (2), offshore shelf (2), (1), lagoonal (1), lagoonal/restricted shallow subtidal (1), peritidal (1)

Age range: 488.3 to 416.0 Ma

Distribution:

• Silurian of Canada (4: Ontario, Quebec collections), the Czech Republic (12), Estonia (1), Greenland (4), Japan (1), Kazakhstan (1), Norway (1), the Russian Federation (12), Sweden (8), Ukraine (7), United States (51: California, Illinois, Indiana, Iowa, New York, Wisconsin)

• Niagaran of United States (2: Indiana, New York)

• Ordovician of Australia (3), Canada (16: Northwest Territories, Nunavut, Ontario, Quebec), China (9), the Czech Republic (2), France (1), the Russian Federation (10), Spain (2), Sweden (2), United States (32: Illinois, Illinois, Iowa, Kentucky, Minnesota, Missouri, Nevada, New York, Tennessee, Virginia, Wisconsin)

• Llandeilo of China (1)

• Chazy of United States (1: New York)

• Whiterockian of United States (1: California)