First report of Crumillospongia (Demospongea) from the Cambrian of Europe (Murero biota, Spain)

作者：Garcia Bellido Diego C^*; Dies Alvarez Maria Eugenia; Gamez Vintaned Jose Antonio; Linan Eladio; Gozalo Rodolfo

来源：Bulletin of Geosciences, 2011, 86(3): 641-650.

DOI：10.3140/bull.geosci.1253

• Crumillospongia
• demosponges
• early Cambrian
• Lagerstatte
• taphonomy
• Murero
• Spain

The demosponge genus Crumillospongia, originally described from the Burgess Shale (middle Cambrian of Canada), has only been cited from lower and middle Cambrian localities of North America and China. The taxon is now also described from uppermost lower Cambrian rocks of the Murero Lagerstatte (Zaragoza Province, NE Spain). Crumillospongia mureroensis sp. nov. is a small to medium sized sack-shaped to elongate demosponge characterized by the presence of densely packed pores of three sizes, considerably larger than those in any other species of the genus. The Spanish material represents a link in the chronostratigraphical gap between the Chinese and North American material.

• 出版日期2011