Inzeria tjomusi Stromatolite – Large Specimen | Katavskaya Formation, Bashkortostan, Russia

Inzeria tjomusi Stromatolite | Neoproterozoic | Katavskaya Formation, Bashkortostan, Russia

A large and impressive specimen of Inzeria tjomusi, a colonial stromatolite — one of Earth’s most ancient life forms — sourced from the Katavskaya Formation, Karatau Group, along the Inzer River in the Assy Valley, Bashkortostan, Russia. Dating to the Neoproterozoic Era (~850–900 million years ago), this specimen predates complex animal life entirely, offering a profound connection to the very origins of life on Earth.

Provenance

• Species: Inzeria tjomusi
• Period: Neoproterozoic (~850–900 Ma)
• Formation: Katavskaya Formation, Karatau Group
• Location: Inzer River, Assy Valley, Bashkortostan, Russia
• Size: Large specimen

Stromatolites are layered microbial mats — the oldest known macroscopic life on Earth. Inzeria tjomusi is among the most visually striking of all Precambrian stromatolite taxa, displaying characteristic branching columns of exquisite preservation. A rare and scientifically significant piece for collectors of ancient life and Precambrian natural history.