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Table 1 Classification and nomenclature of Chengkou manganese stromatolites in the Ediacaran Doushantuo Formation

From: Manganese carbonate stromatolites of the Ediacaran Doushantuo Formation in Chengkou, northern Yangtze Craton, China

Microbialite

Classification by shapes

Classification by sizes

Comprehensive classification by shapes and sizes (this study)

Stromatolites

Columnar

Branched columnar

The column diameter less than 1 mm

Micro-branched stromatolites

Columnar

The column diameter less than 1 mm

Micro-columnar stromatolites

The column diameter greater than 1 mm

Columnar stromatolites

Stratiform-columnar

The thickness of laminated structures greater than 1 cm

Stratiform-columnar stromatolites

Stratiform

Stratiform stromatolites