Stromatolites or stromatoliths (s; from Greek στρώμα, strōma, mattress, bed, stratum, and λίθος, lithos, rock) are layered bio-chemical accretionary structures formed in shallow water by the trapping, binding and cementation of sedimentary grains by biofilms (microbial mats) of microorganisms, especially cyanobacteria. Stromatolites pr...
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layered deposit, mainly of limestone, formed by the growth of blue-green algae (primitive one-celled organisms). These structures are usually ... [7 related articles]
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Stromatolites in Western Australia A rounded, multilayered, sedimentary structure, up to about 1 meter across, formed by microbial mats in which a rock-like layer of either sand or precipitated minerals is also present. Fossil stromatolites constitute our earliest and most pervasive direct reco...
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A fossil form representing the growth habit of an algal mat
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Petrified layered structures created by sedimentation of microorganisms in shallow water.
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(Gk: stroma framework/ cover; lithos stone) a calacareous fossil frame made by many ancient reef-building algae.
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a laminated calcareous fossil structure built by marine algae and having a rounded or columnar form.
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