Stenolaemata - Cryptostomata - Fenestellidae
Alternative spelling: Cervella
Full reference: B.J. Chronic. 1949. Invertebrate paleontology (excepting fuslinids and corals). Upper Paleozoic of Peru 46-173
Parent taxon: Alternifenestella according to S. Sakagami 1995
See also Bassler 1953 and Sepkoski 2002
Sister taxa: Spinofenestella absoluta, Spinofenestella antiensis, Spinofenestella aspratilis, Spinofenestella basleoensis, Spinofenestella geinitzi, Spinofenestella lata, Spinofenestella magna, Spinofenestella microfenestrata, Spinofenestella minuta, Spinofenestella popovi, Spinofenestella solida, Spinofenestella speciosa, Spinofenestella spinulosa, Spinofenestella subquadratopora, Spinofenestella surda, Spinofenestella tschernovi, Alternifenestella vagrantia, Alternifenestella spinifera, Alternifenestella megacapillaris, Alternifenestella invisitata, Alternifenestella cervoidea, Alternifenestella minor, Alternifenestella minuscula, Alternifenestella spitzbergensis, Alternifenestella indubia, Alternifenestella pajerensis, Alternifenestella greenharbourensis, Alternifenestella ampla, Alternifenestella cyclotriangulata, Alternifenestella absoluta, Alternifenestella horologia, Alternifenestella rarispinata, Alternifenestella sublonga, Alternifenestella major, Alternifenestella tribifurcata, Alternifenestella picchuensis, Alternifenestella crassiseptata, Alternifenestella tuberculifera, Alternifenestella esaulovae, Alternifenestella sayensis, Alternifenestella kungurensis, Alternifenestella bifida, Alternifenestella argumentosa, Alternifenestella tenuiseptata, Alternifenestella nalivkini
Subtaxa: Alternifenestella (Cervella) aspera
Distribution: