Micropalaeosoma

Micropalaeosoma
Temporal range: Eocene
Scientific classification
Kingdom: Animalia
Phylum: Platyhelminthes
Class: Turbellaria
Order: Rhabdocoela
Suborder: Typhloplanoida
Genus: Micropalaeosoma
Poinar, 2004
Type species
Micropalaeosoma balticus
(Poinar, 2003)

Micropalaeosoma balticus (formerly Palaeosoma balticus[lower-alpha 1]) is 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 and is the oldest and most complete flatworm fossil yet discovered.[1][2]

References

  1. The name Palaeosoma was preoccupied by a genus of fossil millipedes.
  1. Poinar, George (2003). "A rhabdocoel turbellarian (Platyhelminthes, Typhloplanoida) in Baltic amber with a review of fossil and sub-fossil platyhelminths" (PDF). Invertebrate Biology 122 (4): 308–312. doi:10.1111/j.1744-7410.2003.tb00095.x.
  2. Poinar, George O. (2011). "Eggs, Oviposition, and Maternal Care in Amber". In Arthur J. Boucot, George O. Poinar, Jr. Fossil Behavior Compendium. CRC Press.
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