Stromatolites
Concept
Rock formations built by microbes on Earth, considered a key morphological trace for identifying simple life in ancient environments, including potentially on Mars.
Mentioned in 2 videos
Videos Mentioning Stromatolites

Life might be more common in the universe than we thought
Sabine Hossenfelder
Biostructures, layers of rock containing remains of single-celled organisms like algae or bacteria, considered the oldest confirmed traces of life on Earth.

Nathalie Cabrol: Search for Alien Life | Lex Fridman Podcast #348
Lex Fridman
Rock formations built by microbes on Earth, considered a key morphological trace for identifying simple life in ancient environments, including potentially on Mars.