Paleonet: Age of Stromatolite

Michael W. Rasser michael.rasser at
Thu Aug 5 08:34:03 GMT 2010

Dear colleagues,
MANY thanks to those who responded to my request!
If you are interested - this stromatolite seems to be of Maastrichtian 
age and was found in the El Molino Formation, although fossil trader 
sell it as "Early Proterozoic". Here is a thesis on this formation:
The stromatolite is figured on page 45 (at least I hope that it is the 
correct one)
Many greetings, Michael

Michael W. Rasser schrieb:
> Dear colleagues,
> there is this well-known stromatolite from Bolivia: 
> which is said to be of Proterozoic age (2.3 billion years).
> Does anybody know, if this age is correct? I remember that there are 
> some doubts about this, but I am not sure!
> And: is there any publication about this occurrence?
> Thank you in advance and many greetings,
> Michael

Priv.-Doz. Dr. Michael W. Rasser
Kurator für Känozoische Invertebraten
(Curator for Cenozoic Invertebrates)
Staatliches Museum für Naturkunde Stuttgart

Postal address: Rosenstein 1, D-70191 Stuttgart, Germany
Phone.: +49-(0)711/8936-146 | Fax: +49-(0)711/8936-100
NEU/NEW: michael.rasser at

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