Bradoriid arthropods from the lower - middle Cambrian of Scania, Sweden

• Autorzy: Dies Alvarez M.E. , Gozalo R. , Cederstrom P. , Ahlberg P.
• Języki publikacji: EN

Abstrakty

EN

Three species of bradoriid arthropods from the lower to middle Cambrian transitional interval of Scania, southern Sweden, are described and illustrated: Beyrichona tinea from the top of the traditional lower Cambrian (Gislöv Formation; Ornamentaspis? linnarssoni Zone), and Hipponicharion eos and Alutella sp. from the basal portion of the traditional middle Cambrian (lowermost part of the Alum Shale Formation). The bradoriid fauna compares most closely with others previously described from western and eastern Avalonia (New Brunswick and England). The record of B. tinea suggests a correlation between the “Protolenus Zone” (Hupeolenus Zone) of western Avalonia and the O.? linnarssoni Zone of Scandinavia. Hipponicharion eos appears to be a fairly long−ranging species as it has previously been recorded from upper lower Cambrian or lower middle Cambrian strata in New Brunswick, Poland, and probably Sardinia. The record of H. eos from the lowermost part of the Alum Shale Formation suggests that this largely unfossiliferous interval in the Scanian succession is not younger than the Acadoparadoxides oelandicus Superzone. The genus Alutella has not previously been recorded from the Acado−Baltic Province.

Słowa kluczowe

EN

bradoriid arthropod; arthropod; Cambrian; Scania; Sweden; paleontology; Arthropoda; Bradoriida; taxonomy; biostratigraphy

• Wydawca: -
• Czasopismo: Acta Palaeontologica Polonica
• Rocznik: 2008
• Tom: 53
• Numer: 4
• Opis fizyczny: p.647-656,fig.,ref.

Twórcy

autor

Dies Alvarez M.E.

• Lunds Universitet, Solvegatan 12, 223 62 Lund, Sweden

autor

Gozalo R.

autor

Cederstrom P.

autor

Ahlberg P.

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