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The role of symbiosis in the first colonization of the seafloor by macrobiota: Insights from the oldest Ediacaran biota (Newfoundland, Canada) by Duncan McIlroy; Suzanne C. Dufour; Rod Taylor; Robert Nicholls is a Biochemistry, Genetics and Molecular Biology article available to read on EtoBox.

What is The role of symbiosis in the first colonization of the seafloor by macrobiota: Insights from the oldest Ediacaran biota (Newfoundland, Canada) about?

The earliest record of animal life comes from the Ediacaran of Newfoundland, including dm scale fossil organisms, most of which are inferred to have been epibenthic immotile eumetazoans. This work introduces the palaeobiology of the major fossil groups in the Newfoundland assemblages including strange fractal-like taxa and addresses some of biogeochemical challenges such as sulfide buildup that could most easily have been overcome by symbiogenesis. Specifically, the epibenthic reclining nature of some of the Ediacaran biota-with their fractallike high surface area lower surfaces-are considered to have been well designed for gaining nutriment from chemosynthetic, sulfur-oxidizing bacteria. This view constitutes a shift away from the view that most of the biota were anomalously large osmotrophs.

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Author

Duncan McIlroy; Suzanne C. Dufour; Rod Taylor; Robert Nicholls

Publisher

Elsevier BV

Published

2021

Language

EN

Field

Biochemistry, Genetics and Molecular Biology (Life Sciences)