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
|--Cleidothaerus Stutchbury 1830P61 [CleidothaeridaeBRW98]
| |--C. albidus (Lamarck 1819)SB93, F26 (see below for synonymy)
| `--C. pliciferus (Odhner 1917)WBS-S15
|--LyonsiidaeGW02
| |--OstomyaG88
| |--Mytilimeria nuttalliJB12, C64
| |--Guianadesma Morrison 1943G88
| | `--G. sinuosumBRW98
| |--EntodesmaPP78
| | |--E. cuneataM96
| | |--E. inflata [incl. E. diaphana Cpr. 1855]C64
| | |--E. (Phlycticoncha) lucasanum (Bartsch & Rehder 1939)PP78
| | `--E. saxicola [=Lyonsia saxicola; incl. E. cylindracea]C64
| `--LyonsiaGW02
| |--L. arenosaN79
| |--L. californica [incl. L. bracteata, Osteodesma (Lyonsia) bracteatum, L. nitida, O. nitidum]C64
| |--L. (Pandorina) flabellata Gould 1861C64
| |--L. floridana Conrad 1848 [incl. Osteodesma hyalina (preoc.)]C64
| |--L. fretalis Dall 1915GO78
| |--L. hyalina Conrad 1848M06
| |--L. inflata [incl. L. diaphana]C64
| |--L. naviculaC64
| |--L. norvegicaN79
| |--L. pictaC64
| |--L. subplicata (d’Orbigny 1850)SB93
| `--L. ventricosa Gould 1861GW02, C64
`--PandoridaeGW02
|--Kennerlia Carpenter 1864C64
| |--K. bicarinata Carpenter 1864C64
| `--K. filosa Carpenter 1864C64
|--Frenamya Iredale 1930BRW98
| |--*F. patula (Tate 1889)BRW98, S-S90 [=Coelodon patulusBRW98, Pandora (Frenamya) patulaBRW98]
| |--F. ceylanica [=Pandora (Frenamya) ceylanica]BRW98
| `--F. elongatus (Carpenter 1846)TW07 [=Pandora (Frenamya) elongatusBRW98]
|--Clidiophora Carpenter 1864C64
| |--*C. claviculata [=Pandora claviculata; incl. P. cornuta]C64
| |--C. punctata [=Pandora punctata]C64
| `--C. trilineataC64
`--PandoraGW02
| i. s.: P. arenosaGW02
| P. bilirataC64
| P. dilatata Deshayes 1858SB93
| P. obtusaN79
| P. pinnaPC11
| P. rostrataPP64
|--P. (Pandora)PP78
| |--P. (P.) inaequivalvisG20, M96 [=Mya (P.) inequivalvisG20]
| `--P. (P.) uncifera Pilsbry & Lowe 1932PP78
`--P. (Pandorella)PP78
|--P. (P.) cornuta Adams 1852PP78
`--P. (P.) granulata Dall 1915PP78
Cleidothaerus albidus (Lamarck 1819)SB93, F26 [=Chamostrea albidaF26; incl. *Cl. chamoidesP61, BRW98, Cl. maorianus Finlay 1927BRW98, P61]
*Type species of generic name indicated
References
[BRW98] Beesley, P. L., G. J. B. Ross & A. Wells (eds) 1998. Fauna of Australia vol. 5. Mollusca: The Southern Synthesis. Part A. Australian Biological Resources Study: Canberra.
[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.
[F26] Finlay, H. J. 1926. A further commentary on New Zealand molluscan systematics. Transactions and Proceedings of the New Zealand Institute 57: 320–485.
[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.
[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.
[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.
[P61] Powell, A. W. B. 1961. Shells of New Zealand: An illustrated handbook 4th ed. Whitcombe and Tombs Limited: Christchurch.
[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.
[S-S90] Slack-Smith, S. M. 1990. The bivalves of Shark Bay, Western Australia. In: Berry, P. F., S. D. Bradshaw & B. R. Wilson (eds) Research in Shark Bay: Report of the France-Australe Bicentenary Expedition Committee pp. 129–157. Western Australian Museum.
[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.
[WBS-S15] Willan, R. C., C. Bryce & S. M. Slack-Smith. 2015. Kimberley marine biota. Historical data: molluscs. Records of the Western Australian Museum Supplement 84: 287–343.