Phylum: Nematomorpha or Priapulida
Order: Incertae sedis
Species: M. cylindrica
Author Citation Sun and Huo, 1987
Geological Time Scale
International Age: Age 3
Acquired by: Purchase/Trade
Recent phylogenetic analyses place this worm-like animal either within Nematomorpha or Priapulida. It is distinguished from Cricocosmia by it's much more slender appearance, as well as the absence of sclerites on its trunk.