Gallery of Sedimentary Structures

Structures built by organisms

Images copyright © 1998, John W.F. Waldron, except where otherwise stated
Stromatolites, Table Head Group, W. Newfoundland Stromatolites, Table Head Group, W. Newfoundland
Stromatolites with silica replacement (pale), Durness Group, W. Scotland Stromatolites with silica replacement (pale), Durness Group, W. Scotland
Thrombolites, Ordovician St. George Group, W. Newfoundland Thrombolites, Ordovician St. George Group, W. Newfoundland
Patch reef in Middle Cambrian Port au Port Group, West Newfoundland Patch reef in Middle Cambrian Port au Port Group, West Newfoundland
Patch reef in Ordovician Lourdes Limestone, Port au Port Peninsula, West Newfoundland Patch reef in Ordovician Lourdes Limestone, Port au Port Peninsula, West Newfoundland
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