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Temporal range: Early Cambrian
Scientific classification e
Kingdom: Animalia
Informal group: Lophophorata
Order: "Tommotiida"
Genus: Eccentrotheca
Landing, Nowlan & Fletcher, 1980

Eccentrotheca is a genus of sclerite-bearing marine organism known from Cambrian deposits. Its sclerite form rings that are stacked to produce a widening-upwards conical scleritome.[1] Individual plates have been homologized with the valves of brachiopods, and a relationship with the phoronids is also likely at a stem-group level.[1] Its pointed end terminated in a stub that probably fastened it to a hard sea floor; its open end has been interpreted as a filter-feeding aperture.[1]


  1. ^ a b c Skovsted, C. B.; Brock, G. A.; Topper, T. P.; Paterson, J. R.; Holmer, L. E. (2011). "Scleritome construction, biofacies, biostratigraphy and systematics of the tommotiid Eccentrotheca helenia sp. nov. from the Early Cambrian of South Australia". Palaeontology. 54 (2): 253–286. doi:10.1111/j.1475-4983.2010.01031.x.