Ainiktozoon

Ainiktozoon loganense
Temporal range:
Upside-down fossil specimen
Reconstruction
Scientific classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Arthropoda
Class: Thylacocephala
Order: Concavicarida
Genus: Ainiktozoon
Scourfield, 1937
Species:
A. loganense
Binomial name
Ainiktozoon loganense
Scourfield, 1937

Ainiktozoon loganense ("Logan's enigmatic animal", from αἰνικτός (aíniktós, "riddling, enigmatical"), ζωόν living thing), is a fossil arthropod from the Silurian of Scotland. It was found at the Birk Knowes site, part of the Patrick Burn Formation, near Lesmahagow. Originally described as an early chordate, recent studies suggest that it was in fact an arthropod, more precisely a thylacocephalan crustacean.