Lateral view of each valve of Pandora inaequivalvis, from Doğan et al. (2007).

Belongs within: Pholadomyoida.

The Pandoroidea are a group of sedentary or burrowing bivalves with a thin, inequivalve, somewhat elongate or gaping shell.

Pandoroidea [Pandoracea] GW02
    |–Laternulidae H96
    |    |–Cercomya [Cercomyidae] SB93
    |    |    `–C. (Cercomya) praecursor SB93
    |    `–Laternula KC11 [Laternulidae H96]
    |         |–L. anatina (Linnaeus 1758) XZ10
    |         |–L. boschasina (Reeve 1863) XZ10
    |         |–L. elliptica KC11
    |         |–L. limicola GW02
    |         |–L. marilina (Valenciennes in Reeve 1864) TW07
    |         |–L. subrostrata (Lamarck 1818) BD86
    |         `–L. truncata GW02
    |–Lyonsiidae GW02
    |    |–Ostomya [incl. Guianadesma Morrison 1943] G88
    |    |–Mytilimeria nuttalli JB12, C64
    |    |–Entodesma PP78
    |    |    |–E. cuneata M96
    |    |    |–E. inflata [incl. E. diaphana Cpr. 1855] C64
    |    |    |–E. (Phlycticoncha) lucasanum (Bartsch & Rehder 1939) PP78
    |    |    `–E. saxicola [=Lyonsia saxicola; incl. E. cylindracea] C64
    |    `–Lyonsia GW02
    |         |–L. arenosa N79
    |         |–L. californica [incl. L. bracteata, Osteodesma (Lyonsia) bracteatum, L. nitida, O. nitidum] C64
    |         |–L. (Pandorina) flabellata Gould 1861 C64
    |         |–L. floridana Conrad 1848 [incl. Osteodesma hyalina (preoc.)] C64
    |         |–L. fretalis Dall 1915 GO78
    |         |–L. hyalina Conrad 1848 M06
    |         |–L. inflata [incl. L. diaphana] C64
    |         |–L. navicula C64
    |         |–L. norvegica N79
    |         |–L. picta C64
    |         |–L. subplicata (d’Orbigny 1850) SB93
    |         `–L. ventricosa Gould 1861 GW02, C64
    `–Pandoridae GW02
         |–Frenamya elongatus (Carpenter 1846) TW07
         |–Kennerlia Carpenter 1864 C64
         |    |–K. bicarinata Carpenter 1864 C64
         |    `–K. filosa Carpenter 1864 C64
         |–Clidiophora Carpenter 1864 C64
         |    |–*C. claviculata [=Pandora claviculata; incl. P. cornuta] C64
         |    |–C. punctata [=Pandora punctata] C64
         |    `–C. trilineata C64
         `–Pandora GW02
              |  i. s.: P. arenosa GW02
              |         P. bilirata C64
              |         P. dilatata Deshayes 1858 SB93
              |         P. obtusa N79
              |         P. pinna PC11
              |         P. rostrata PP64
              |–P. (Pandora) PP78
              |    |–P. (P.) inaequivalvis G20, M96 [=Mya (P.) inequivalvis G20]
              |    `–P. (P.) uncifera Pilsbry & Lowe 1932 PP78
              `–P. (Pandorella) PP78
                   |–P. (P.) cornuta Adams 1852 PP78
                   `–P. (P.) granulata Dall 1915 PP78

*Type species of generic name indicated


[BD86] Barash, A., & Z. Danin. 1986. Further additions to the knowledge of Indo-Pacific Mollusca in the Mediterranean Sea (Lessepsian migrants). Spixiana 9 (2): 117–141.

[C64] Carpenter, P. P. 1864. Supplementary report on the present state of our knowledge with regard to the Mollusca of the west coast of North America. Report of the British Association for the Advancement of Science 33: 517–686.

[GO78] Gallardo S., C., & C. Osorio R. 1978. Hiatella solida (Sowerby, 1834) (Mollusca: Hiatellidae) on Concholepas concholepas (Bruguière, 1789) and other substrates. Veliger 20 (3): 274–278.

[GW02] Giribet, G., & W. Wheeler. 2002. On bivalve phylogeny: a high-level analysis of the Bivalvia (Mollusca) based on combined morphology and DNA sequence data. Invertebrate Biology 121 (4): 271–324.

[G20] Goldfuss, G. A. 1820. Handbuch der Naturgeschichte vol. 3. Handbuch der Zoologie pt 1. Johann Leonhard Schrag: Nürnberg.

[G88] Gray, J. 1988. Evolution of the freshwater ecosystem: the fossil record. Palaeogeography, Palaeoclimatology, Palaeoecology 62: 1–214.

[H96] Healy, J. M. 1996. Molluscan sperm ultrastructure: correlation with taxonomic units within the Gastropoda, Cephalopoda and Bivalvia. In: Taylor, J. D. (ed.) Origin and Evolutionary Radiation of the Mollusca pp. 99–113. Oxford University Press: Oxford.

[JB12] Johnson, M. E., & B. G. Baarli. 2012. Development of intertidal biotas through Phanerozoic time. In: Talent, J. A. (ed.) Earth and Life: Global biodiversity, extinction intervals and biogeographic perturbations through time pp. 63–128. Springer.

[KC11] Kocot, K. M., J. T. Cannon, C. Todt, M. R. Citarella, A. B. Kohn, A. Meyer, S. R. Santos, C. Schander, L. L. Moroz, B. Lieb & K. M. Halanych. 2011. Phylogenomics reveals deep molluscan relationships. Nature 477: 452–456.

[M96] Morton, B. 1996. The evolutionary history of the Bivalvia. In: Taylor, J. D. (ed.) Origin and Evolutionary Radiation of the Mollusca pp. 337–359. Oxford University Press: Oxford.

[M06] Morton, B. 2006. The functional morphology of Penicillus philippinensis (Anomalodesmata: Clavagelloidea: Penicillidae) and the evolution of an unique muscular system in the Bivalvia. Records of the Western Australian Museum 23 (2): 175–192.

[N79] Norman, A. M. 1879. The Mollusca of the fiords near Bergen, Norway. Journal of Conchology 2: 8–77.

[PP64] Peres, J. M., & J. Picard. 1964. Nouveau manuel de bionomie benthique de la mer Mediterranee. Recueil des Travaux de la Station Marine d’Endoume, Bulletin 31 (27): 5–137.

[PC11] Plazzi, F., A. Ceregato, M. Taviani & M. Passamonti. 2011. A molecular phylogeny of bivalve mollusks: ancient radiations and divergences as revealed by mitochondrial genes. PLoS One 6 (11): e27147.

[PP78] Poorman, F. L., & L. H. Poorman. 1978. Additional molluscan records from Bahía de Los Angeles, Baja California Norte. Veliger 20 (4): 369–374.

[SB93] Skelton, P. W., & M. J. Benton. 1993. Mollusca: Rostroconchia, Scaphopoda and Bivalvia. In: Benton, M. J. (ed.) The Fossil Record 2 pp. 237–263. Chapman & Hall: London.

[TW07] Taylor, J. D., S. T. Williams, E. A. Glover & P. Dyal. 2007. A molecular phylogeny of heterodont bivalves (Mollusca: Bivalvia: Heterodonta): new analyses of 18S and 28S rRNA genes. Zoologica Scripta 36 (6): 587–606.

[XZ10] Xu, F., & J. Zhang. 2010. Study on the bivalve faunal composition of the Yellow Sea and Bohai Sea. In: China-Russia Bilateral Symposium: Proceedings of the China-Russia Bilateral Symposium of “Comparison on Marine Biodiversity in the Northwest Pacific Ocean”, 10–11 October 2010, Qingdao (China) pp. 7–12. Institute of Oceanology, Chinese Academy of Sciences; A. V. Zhirmunsky Institute of Marine Biology, Far East Branch of the Russian Academy of Sciences.

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