stromatolite

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Related to Stramatolites: Cambrian Explosion

stro·mat·o·lite

 (strō-măt′l-īt′)
n.
A usually rounded or columnar sedimentary structure consisting of alternating layers of carbonate or silicate sediment and fossilized microbial mats, produced over geologic time by the trapping, binding, or precipitating of minerals by groups of microorganisms, primarily cyanobacteria.

[Late Latin strōma, strōmat-, covering; see stroma + -lite.]

stro·mat′o·lit′ic (-măt′l-ĭt′ĭk) adj.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

stromatolite

(strəʊˈmætəˌlaɪt)
n
(Palaeontology) a rocky mass consisting of layers of calcareous material and sediment formed by the prolific growth of cyanobacteria: such structures date back to Precambrian times
[C20: from Greek, from strōma covering + -lite]
stromatolitic adj
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014

stro•mat•o•lite

(stroʊˈmæt lˌaɪt)

n.
a laminated calcareous fossil structure built by marine algae and having a rounded or columnar form.
[< German Stromatolith (1908) < New Latin stromat-, s. of stroma stroma + -o- -o- + German -lith -lith; see -lite]
stro•mat`o•lit′ic (-ˈɪt ɪk) adj.
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.
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