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Taxonomy
Ostrea jibananandai was named by Halder and Mitra (2021). Its type specimen is PG/CB/Os 47, a valve, and it is a 3D body fossil.
Sister species lacking formal opinion data
O. agnevoensis, O. ajatensis, O. arkotensis, O. bryani, O. chillyensis, O. cunabula, O. densata, O. denselamellosa, O. duvergieri, O. elhuyari, O. eothirsae, O. equatoralis, O. equatorialis, O. erina, O. esutoruensis, O. fimbriata, O. guaranitica, O. idriaensis, O. idrianensis, O. lapillicola, O. longiuscula, O. mackayi, O. maradensis, O. maxima, O. mcnairyensis, O. mesentrica, O. palaemon, O. pauciplicata, O. penegemmea, O. petrosal, O. restinensis, O. rionegrensis, O. rudicula, O. sakaryensis, O. sallomacensis, O. selleformis, O. sicardi, O. sinuosa, O. skidegatensis, O. sloani, O. sublingua, O. tigiliana, O. trachydiscus, O. virgata, O. boriesi, O. boussaci, O. cimana, O. mitsuiana, O. rouardti, O. rouaulti, O. perirregularis
Synonymy list
| Year | Name and author |
|---|---|
| 2021 | Ostrea jibananandai Halder and Mitra |
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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.
†Ostrea jibananandai Halder and Mitra 2021
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Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| K. Halder and A. Mitra 2021 | Shells showing pronounced sexual dimorphism. Female shells large, attaining approximately 85 mm in height, relatively thin; distinctly higher than long; oblique.
Strong shape modification occurring during ontogeny, from rounded in early juvenile stage to rather high in adulthood. Prominent umbonal cavity present in both valves. Left valve with anterior flange-like extension in dorsal part of the shell, providing settling space for dwarf male(s). Right valve with corresponding extension overarching dwarf male(s). Shell surface almost smooth, sometimes with blunt radial ridges on left valve and radial gashes on right valve. Dwarf male shells stunted, attaining approximately 20 mm in height, distinctly higher than long, attaching on inner surface of flange-like extension of left valves of females. |
Measurements
No measurements are available
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| Source: f = family, c = class | |||||
| References: Aberhan et al. 2004, Kiessling 2003 | |||||