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Styginidae
Styginidae is a family of trilobite in the order Corynexochida. Fossils of the various genera are found in marine strata throughout the world, aged from Ordovician up until the family's extinction during the Silurian. Genera Styginidae contains the following genera. * ''Alceste (trilobite), Alceste'' * ''Ancyropyge'' Clark 1891 * ''Arctipeltis'' Maksimova 1986 * ''Australoscutellum'' Chatterton and Campbell 1980 * ''Bojoscutellum'' Snajdr 1958 * ''Breviscutellum'' Snajdr 1960 * ''Bronteopsis'' Nicholson and Etheridge 1879 * ''Bumastus'' Murchison 1839 * ''Cekovia'' Snajdr 1956 * ''Cornuscutellum'' Snajdr 1960 * ''Cybantyx'' Lane and Thomas 1978 * ''Decoroscutellum'' Snajdr 1958 * ''Delgadoa'' Thadeau 1947 * ''Dentaloscutellum'' Chatterton 1971 * ''Ekwanoscutellum'' Pribyl and Vanek 1972 * ''Eobronteus'' Reed 1928 * ''Eokosovopeltis'' Pribyl and Vanek 1972 * ''Failleana'' Chatterton and Ludvigson 1976 * ''Goldillaenoides'' Balashova 1959 * ''Goldillaenus'' Schindewolf 1924 * ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bumastus
''Bumastus'' is an extinct genus of Corynexochida, corynexochid trilobites which existed from the Early Ordovician Period (geology), period to the Late Silurian period. They were relatively large trilobites, reaching a length of . They were distinctive for their highly globular, smooth-surfaced exoskeleton. They possessed well-developed, large compound eyes and were believed to have dwelled in shallow-water sediments in life. ''Bumastus'' fossils have been found in North America, North and South America, Europe, Asia, and Australia. They are classified under the Family (biology), family Styginidae in the Order (biology), order Corynexochida. Description ''Bumastus'' is a large trilobite, reaching a length of . The body is oblong-oval, about twice as long as it is wide, It had a strongly convex profile, giving it its distinctive globular appearance. Like all trilobites, the body is divided into three functional segments known as Tagma (biology), tagmata (singular: tagma), which ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
