The patch, called a stromatolite, formed millions of years ago when that section of land was under water.    From Wordnik.com.  [MPNnow Home RSS] Reference

But, consider this: a stromatolite is a large colony of single-celled organisms communicating with one another.    From Wordnik.com.  [Another definition of ID - The Panda's Thumb] Reference

ANDREW KNOLL, PALEONTOLOGIST, HARVARD UNIVERSITY: What you see here, is something called a stromatolite, and if you look at it carefully, you'll see that.    From Wordnik.com.  [CNN Transcript Aug 12, 2001] Reference

A conical stromatolite, conophyton, from the Siyeh Formation.    From Wordnik.com.  [Glacier National Park Geology & Paleontology: Part 4 - Siyeh] Reference

Helena and first described four subdivisions and stromatolite zones within the park.    From Wordnik.com.  [Glacier National Park Geology & Paleontology: Part 4 - Siyeh] Reference

Does this “simple ancestor” actually exist or is it forever lost in a stromatolite?.    From Wordnik.com.  [Quote of the Day - 13 July 05 - The Panda's Thumb] Reference

Isolated stromatolite occurrences not associated with these cycles are also known from within the park.    From Wordnik.com.  [Glacier National Park Geology & Paleontology: Part 4 - Siyeh] Reference

In a rock shop, I was fortunate enough to discover a 7 diameter stromatolite sphere, reasonably priced.    From Wordnik.com.  [Stromatolites - The Panda's Thumb] Reference

Another stromatolite group occurring above the C. columnaris zone was assigned to Baicalia by White 1970.    From Wordnik.com.  [Glacier National Park Geology & Paleontology: Part 2 - Prichard and Altyn] Reference

Non-biological stromatolite-like structures are more random, less patterned and therefore less compressible.    From Wordnik.com.  [Boing Boing: March 30, 2003 - April 5, 2003 Archives] Reference

However, Horodyski still referred to the group Baicalia interchangabally with “branching stromatolite” left; Horodyski, 1985a.    From Wordnik.com.  [Glacier National Park Geology & Paleontology: Part 2 - Prichard and Altyn] Reference

Horodyski, R.J., 1983b, Baicalia-Conophyton stromatolite cycles in the Middle Proterozoic Siyeh limestone, northwestern Montana abs.    From Wordnik.com.  [Glacier National Park Geology & Paleontology: Part 4 - Siyeh] Reference

Most geologists I know would call the entire rock a “stromatolite”, rather than trying to point to any particular part of the rock.    From Wordnik.com.  [Stromatolites - The Panda's Thumb] Reference

This, in turn, set the stage for the origin of eukaryotes (from the very tightly packed denizens of the stromatolite mats), which eventually set the stage for multicellularity.    From Wordnik.com.  [Ancient Predator Revealed!] Reference

Baicalia is a branching columnar stromatolite forming in subtidal areas, where C. columnaris is a highly elongated, unbranched, columnar stromatolite living in quiet waters below the tidal zone.    From Wordnik.com.  [Glacier National Park Geology & Paleontology: Part 2 - Prichard and Altyn] Reference

Although biological stromatolites and non-biological stromatolite-look-alike structures appear similar to the human eye, the biological origin of stromatolites makes them more ordered, more highly patterned.    From Wordnik.com.  [Boing Boing: March 30, 2003 - April 5, 2003 Archives] Reference

PS I mapped a few thousand sq miles of late Precambrian in the Richtersveld, just inside South Africa years ago, which was older than the Nama and included the Numees tillite in which I found a stromatolite in associated dolomite, and also a dropstone and varves.    From Wordnik.com.  [The Cambrian as an evolutionary exemplar - The Panda's Thumb] Reference

Pseudocolumnar and mound-shaped stromatolites, or stromatoloids, are known from five locations, with filamentous and pillar-shaped microfossils detected from a stromatolite (or stromatoloid) in the lower part of the Snowslip Formation (Horodyski, 1977, 1983a, 1985a, 1993a,b).    From Wordnik.com.  [Archive 2008-09-01] Reference

One genus of stromatolite very common in the geologic record is Collenia.    From Wordnik.com.  [WN.com - Financial News] Reference

The earliest stromatolite of confirmed microbial origin dates to 2724 million years ago.    From Wordnik.com.  [WN.com - Financial News] Reference

The connection between grazer and stromatolite abundance is well documented in the younger.    From Wordnik.com.  [WN.com - Financial News] Reference

The researchers will search for any chemical signature that might hint at who built a given stromatolite.    From Wordnik.com.  [Livescience.com] Reference

The bulk of a stromatolite colony consists of layers of calcium carbonate interspersed with mattes deposited by the cyanobacteria.    From Wordnik.com.  [Recently Uploaded Slideshows] Reference

Blue-green algae, or cyanobacteria, are thought to have been the first organisms to do so, and they lived in colonies that left behind the stromatolite fossils.    From Wordnik.com.  [PhysOrg.com - latest science and technology news stories] Reference

These modern day microbes are building stromatolites similar to those of their ancient brethren, and so they may provide clues to who the ancient stromatolite-builders were.    From Wordnik.com.  [Livescience.com] Reference

Ordovician evolutionary radiation; stromatolite abundance also increased after the end-Ordovician and end-Permian extinctions decimated marine animals, falling back to earlier levels as marine animals recovered.    From Wordnik.com.  [WN.com - Financial News] Reference

The most widely-supported explanation is that stromatolite builders fell victims to grazing creatures (the Cambrian substrate revolution), implying that sufficiently complex organisms were common over 1 billion years ago.    From Wordnik.com.  [WN.com - Financial News] Reference

In their work, presented at the annual meeting of the Geological Society of America in Portland, the scientists reported their findings of spikes in the number of algae fossils - stromatolite structures - coinciding with mass extinctions of the past.    From Wordnik.com.  [Signs of the Times] Reference

The connection between grazer and stromatolite abundance is well documented in the younger Ordovician evolutionary radiation; stromatolite abundance also increased after the end-Ordovician and end-Permian extinctions decimated marine animals, falling back to earlier levels as marine animals recovered.    From Wordnik.com.  [WN.com - Financial News] Reference

Like in the stromatolite photo above where I just posted a similar comment, there’s little in this photo to help you understand the scale.    From Wordnik.com.  [Fulgurite - The Panda's Thumb] Reference

This marmot is sitting on a stromatolite.    From Wordnik.com.  [Archive 2008-11-01] Reference

Here is a stromatolite from the sea floor.    From Wordnik.com.  [The Future of Human Nature~ A Symposium on the Promises and Challenges of the Revolutions in Genomics and Computer Science (Conference)~ Session Five] Reference

This revealed repeated asymmetrical shapes, criss-crossed with millimetre wide canals, which Maloof says are sponge fragments mixed up with a bacterial stromatolite mat (.    From Wordnik.com.  [New Scientist - Online News] Reference

Another stromatolite story!.    From Wordnik.com.  [Archive 2008-03-01] Reference

Fossilized stromatolite in Glacier National Park.    From Wordnik.com.  [Livescience.com] Reference

I ain’t no kin to no stromatolite.    From Wordnik.com.  [Stromatolites - The Panda's Thumb] Reference