Oncolite sp.

Middle Cambrian

Pioche Shale Fm.

Undescribed Mbr

Rachel (near area 51), Lincoln County

Nevada

USA

Cambrian Oncolite sp. algal ball stromatolite like

SKU: TDI197
€ 160,00Prezzo
  • size: 27 cm x 8 cm witha  natural side

    preparator: Gianpaolo Di Silvestro

    "Oncolites are sedimentary structures composed of oncoids, which are layered structures formed by cyanobacterial growth. Oncolites are very similar to stromatolites, but, instead of forming columns, they form approximately spherical structures