Heymonsicambria

Heymonsicambria is a Cambrian genus of pentastomid from the Orsten of Sweden,[1] containing five species, H. kinnekullensis, H. scandica, H. repetskii, H. taylori and H. gossmannae.

H. repetskii, unusually, has no vestigial trunk limbs, suggesting that this trait is variable within the genus.

[1] H. taylori is distinguished by the shape of its head limbs, alongside the length ratios of its trunk portions.

Unusually, H. taylori is also known from the lowest Ordovician of Canada, thereby being the youngest known record of the genus, and the only one known from outside of Sweden.

[3][1] H. taylori honours Professor John H. Taylor, who provided the specimens of the pentastomid.