Micropalaeosoma
Extinct genus of flatworms
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Micropalaeosoma balticus (formerly Palaeosoma balticus[a]) was reported as an extinct, fossil turbellarian flatworm known from Baltic amber of Kaliningrad, Russia, that lived approximately 40 million years ago. It measured approximately 1.5 mm in length. It was considered the oldest and most complete free-living flatworm body fossil.[1][2] However, much older flatworm fossils have been reported [3][4] and it has been re-interpreted as a pseudo-inclusion (largely consisting of air bubbles).[5]
| Micropalaeosoma Temporal range: | |
|---|---|
Scientific classification  | |
| Kingdom: | Animalia |
| Phylum: | Platyhelminthes |
| Order: | Rhabdocoela |
| Suborder: | Dalytyphloplanida |
| Genus: | †Micropalaeosoma Poinar, 2004 |
| Type species | |
| †Micropalaeosoma balticus (Poinar, 2003) | |
