It's still being peer-reviewed, but here's a pdf detailing diatoms (simple plant life) found in a meteorite.
[link to www.buckingham.ac.uk]

"ABSTRACT
We report the discovery for the first time of diatom
frustulesin a carbonaceous meteorite that fell in the North Central Province of Sri Lanka on 29 December 2012. Contamination is excluded by the circumstance that the elemental abundances within the structures match closely with those of the surrounding matrix. There is also evidence of structures morphologically similar to red rain cells that may have contributed to the episode of red rain that followed within days of the meteorite fall. The new data on“fossil
” diatoms provide strong evidence to support the theory of cometary panspermia.

There was a recent topic on comets perhaps causing Black Death, if interested in the Panspermia concept, meteorites offer a more probably route for organic compounds or contaminated xeno-species to travel to Earth.

There's a pinned thread now here:
Thread: Sri Lankan scientists discover meteorite with evidence of extraterrestrial life