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Soomaspis
Taxonomy
Soomaspis was named by Fortey and Theron (1995) [Sepkoski's age data: O Ashg]. It is not extant.
It was assigned to Liwiidae by Budd (1999); to Naraoiida by Sepkoski (2002); to Nektaspida by Jell and Adrain (2002); to Nektaspidida by Lerosey-Aubril et al. (2017); and to Liwiinae by Mayers et al. (2019).
It was assigned to Liwiidae by Budd (1999); to Naraoiida by Sepkoski (2002); to Nektaspida by Jell and Adrain (2002); to Nektaspidida by Lerosey-Aubril et al. (2017); and to Liwiinae by Mayers et al. (2019).