Girvanella sp. Oncolite
Lower Cambrian
Chambless Formation
Marble Mountain
California

Oncolite Girvanella sp. (algal balls) stromatolite like

SKU: TDI302
€ 140,00Price
  • size: 18 cm x 13,5 cm

    one side is polished one side is natural...is a super piece ofr any Museum Exhibition

    Preparator: Di Silvestro Gianpaolo

     

    cit. https://www.accessscience.com: Oncolites are a genus of cyanobacteria. The extinct members of the genus Girvanella are characterized by flexuous, tubular filaments of uniform diameter, composed of thick, calcareous walls. The external diameters of these cyanobacteria (formerly referred to as blue-green algae) average between 10 and 30 micrometers (μm), although specimens less than 10 μm and up to about 100 μm have been identified as Girvanella. Filaments may occur free (unattached), but they usually occur in groups, twisted together to form nodules and encrusting masses on various objects. The genus is intergrown with encrusting foraminifers in some Paleozoic limestones.

Trilobites on sale

  • Facebook - Grey Circle
  • Twitter - Grey Circle
  • Instagram - Grey Circle

Other Fossils on sale

Books and equipment

Info

Trilobite Design Italia NON vende fossili Italiani.

In Italia è vietato il commercio e la vendita di fossili provenienti dal territorio dello Stato in quanto ritenuti beni culturali e rientranti nei beni tutelati dalla normativa n.1089 dd 1 Giugno 1939 e la nostra azienda NON commercia questi campioni. La presente ditta TDI di Gianpaolo Di Silvestro esclude nella totalità qualsiasi campione fossile d’origine paleo-antropologica. In accordo con la legge Italiana tutti i fossili sono importati ed esportati regolarmente.

Tutti i prezzi del sito sono da intendersi IVA compresa la fattura commerciale sarà allegata alla merce spedita

All prices are VAT included

Trilobite Design Italia and Scientificmodels are website made by Di Silvestro Gianpaolo Aurisina TS  ITALY P.I 01265210326