Presence of Naraoia Walcott, 1912 (Nektaspida, Arthropoda) in the middle Cambrian of Europe (Murero, NE Spain)
- Rodolfo Gozalo 1
- Mª Eugenia Dies-Álvarez 2
- José Antonio Gámez Vintaned 3
- Juan B. Chirivella 4
- Eladio Liñan 2
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1
Universitat de València
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2
Universidad de Zaragoza
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3
Universiti Teknologi Petronas
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4
Universidad CEU Cardenal Herrera
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ISSN: 2255-0550
Año de publicación: 2018
Volumen: 33
Número: 1
Páginas: 83-88
Tipo: Artículo
Otras publicaciones en: Spanish journal of palaeontology
Resumen
The genus Naraoia Walcott, 1912, a Burgess Shale-type fossil known from the lower and middle Cambrian of British Columbia (Canada), Idaho and Utah (USA), as well as from Yunnan and Guizhou provinces (China), is now reported from the middle Cambrian of Murero (Zaragoza, Spain), which is the first record in the Acadobaltic province. The only fragmented specimen found is determined as Naraoia sp., its age being Pardailhania multispinosa Zone (Drumian Stage). This new datum reinforces the hypothesis of the existence of a cosmopolitan faunal substrate in early Cambrian times, which is to some extent refl ected in the mid Cambrian by faunal groups of low evolutionary potential as the family Naraoiidae and other soft-bodied fossil taxa.