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Ramsköld, 1986

Silurian encrinurid trilobites from Gotland and Dalarna, Sweden

Ramsköld, L.
URL
Year1986
JournalPalaeontology
Volume29
Number3
Pages527-575
Typearticle in journal
LanguageEnglish
Id872

Abstract

Trilobites of the family Encrinuridae are described from the Silurian of Gotland and Dalarna, Sweden. Twelve species (nine named, of which four are new) are assigned to two genera. Three subgenera of Encrinurus are recognized, including E. (Australurus) subgen. nov. and E. (Nucleurus) subgen. nov. Balizoma is redefined by excluding species here included in E. (Nucleurus). A directional, morphological trend is shown between several populations of E. (Encrinurus) macrourus Schmidt, 1859. E. (E.) schmidti Männil, 1968 is a junior subjective synonym of E. (E.) schisticola Törnquist, 1884. Balizoma obtusus (Angelin, 1851) may be a widespread species, possibly occurring also in Britain, Estonia, Czechoslovakia, Podolia, and Canada. New species described are E. (E.) intersitus, E. (E.) jarkanderi, E. (E.) nasutus, and E. (E.) odvaldensis.

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