Perfectly 3D preserved calcareous algae fossil Lithothamnium colony - red algae

Description

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Specimen:
Very nice , very detailed miocene calcareous
red algae fossil colony:
Lithothamnium sp.
Locality:
All detailed and accurate data will be provided with the specimen
Stratigraphy:
Miocene
Age:
ca.
23  Mya
Matrix dimesions:
ca. 7,0 x 6,0 x 5,0 cm ( white square on pictures is 1,0 x 1,0 cm )
Description:
Very nice , 3D preserved detailed specimen of miocene calcareous
red algae
(Rhodophyceae)
colony:
Lithothamnium sp.
Specimen beautifully shows what the first - oxygen-generating organisms on Earth looked like.
The term "calcareous algae" has been applied to those algae that have developed the ability to secrete or deposit calcium carbonate within or around their tissues. Remains of such algae have been found in appreciable numbers in most of the limestones of Cenozoic age that have been studied. At some localities, algae occur in sufficient abundance to be important contributors to the building of the limestones.