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Phygraea stewarti
Taxonomy
Ostrea stewarti was named by Hanna (1927) [DISTRIBUTION: Eocene; Eastern Pacific.]. Its type specimen is UCMP 30921–22, a shell, and it is a 3D body fossil. Its type locality is UCR loc. 4922, which is in a Lutetian deep subtidal shelf shale in the Ardath Formation of California.
It was recombined as Pycnodonte (Crenostrea) stewarti by Moore (1987); it was recombined as Phygraea stewarti by Squires (2018) and Hendy (2020).
It was recombined as Pycnodonte (Crenostrea) stewarti by Moore (1987); it was recombined as Phygraea stewarti by Squires (2018) and Hendy (2020).
Sister species lacking formal opinion data
Synonymy list
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If no rank is listed, the taxon is considered an unranked clade in modern classifications. Ranks may be repeated or presented in the wrong order because authors working on different parts of the classification may disagree about how to rank taxa.
†Phygraea stewarti Hanna 1927
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Diagnosis
No diagnoses are available