Emmetrocysta sarjeantii
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sarjeantii (Gitmez, 1970, p.291-292, pl.11, fig.4; text-fig.25) Stover and Evitt, 1978, p.45. Holotype: Gitmez, 1970, pl.11, fig.4; text-fig.25; Fauconnier and Masure, 2004, pl.26, fig.7. Originally Polystephanephorus, subsequently (and now) Emmetrocysta, thirdly Hystrichosphaerina, fourthly Stiphrosphaeridium. Courtinat and Pourtoy in Fauconnier and Masure (2004, p.513) retained this species in Emmetrocysta. Age: Early Kimmeridgian.
Parent: Emmetrocysta