|Basic info||Taxonomic history||Classification||Relationships|
|Morphology||Ecology and taphonomy||Age range and collections|
Rhynchonellata - Spiriferida - Trigonotretidae
It was reranked as Spirifer (Neospirifer) by Reed (1944).
It was assigned to Spirifer by Reed (1944); to Spiriferida by Sepkoski (2002); to Spiriferidae by Shen et al. (2003); and to Neospiriferinae by Williams et al. (2006).
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