Placunanomia cumingii, from Mexican

Belongs within: Pteriomorphia.
Contains: Deltopecten, Pseudomonotidae, Monotidae, Buchia, Aviculopectinoidea, Limidae, Placunopsis, Anomia.

The Pectinida are a clade of bivalves supported by molecular data, combining the living taxa Pectinoidea, Limoidea and Anomiidae. The Anomiidae, golden oysters, are a family of generally sessile bivalves that are first definitely known from the Jurassic (Todd & Palmer 2002). Anomiids usually have thin, translucent shells, and are attached to the substrate when mature by a byssal plug passing through a large foramen in the right valve. The dorsoventrally striated byssal plug is calcified by a mixture of calcite and aragonite.

The Limoidea date back to the early Ordovician where they are represented by Myodakryotus deigryn, a species largely resembling modern Limidae except for the presence of a dimyarian hinge (Cope 1996).

<==Pectinida [Pectinina, Pectinoida]PC11
    |  `--Limoidea [Limoida]C96
    |       |  i. s.: RegalilimaJB12
    |       |         Prolobella Ulrich 1894C04
    |       |--LimidaePC11
    |       `--Myodakryotus Tunnicliff 1987 [Myodakryotidae]C96
    |            `--M. deigryn Tunnicliff 1987SB93
         |--PlacunaG20 [PlacunidaeBRW98]
         |    |--P. lobataBRW98
         |    `--P. placentaG20
         `--Anomiidae [Anomioidea]PC11
              |  i. s.: Eonomia timida Fürsich & Palmer 1982SB93
              |         Juranomia Fürsich & Werner 1989TP02
              |           `--*J. calcibyssata Fürsich & Werner 1989TP02
              |         OsteodesmaC64
              |           |--O. aeruginosa Mighels 1844J49
              |           `--O. kutorganaG31
              |         PododesmusTP02
              |           |--P. macrochizmaKBC03
              |           |--P. patelliformis [=Monia patelliformis]TP02
              |           |--P. rudisM63
              |           |--P. squama [=Monia squama]TP02
              |           |--P. squamula [=Heteranomia squamula]K92
              |           `--P. zelandicusPG98
              |         PlacunopsisTP02
              |    |--AnomiaP61
              |    |--EnigmoniaBRW98
              |    `--PatroBRW98
              |         |--P. australisBRW98
              |         `--P. elyros (Gray 1849) [=Anomia elyros]H09
                   |--Monia Gray 1849BRW98, P61
                   |    |--*M. zelandica (Gray 1843) [=Anomia zelandica]P61
                   |    |--M. furcata (Suter 1907)P61 [=Anomia furcataF26]
                   |    |--M. incisuraA26
                   |    |--M. tateiBRW98
                   |    `--M. trigonopsisBRW98
                        |--P. cumingiiC64
                        |--P. foliataC64
                        |--P. incisuraH86
                        |--P. ione Gray 1850H09
                        |--P. macroschisma [incl. P. alope, P. cepio, Anomia subcostata Conrad 1855]C64
                        `--P. neozelanicaH86
Pectinida incertae sedis:
    |--Orbiculopecten parma Gonzalez 1978SB93
    |--Corrugopecten altoprimus Waterhouse 1982SB93
         |--S. depratiG31
         |--S. granosostriataG31
         |--S. magniniG31
         |--S. planaG31
         `--S. sericeaG31
  Lentipecten hochstetteriJB12, M49
  Monotoidea [Buchiacea, Buchioidea]BRW98
    |    |--HypoxytomaSB93
    |    |--Cyrtorostra Branson 1930DX84
    |    |    |--C. jisuensis (Grabau 1931) [=Conocardium jisuensis]DX84
    |    |    `--C. limitans Waterhouse 1987SB93
    |    `--OxytomaW84
    |         |--O. cygnipesH79
    |         |--O. (Oxytoma) inaequivalvis (Sowerby 1819)W84
    |         |--O. laticostatumG31
    |         `--O. scanicaH79
         |--Praebuchia anabarensis Zakharov 1981SB93
              |--A. antulaiK79
              |--A. aptiensisK79
              |--A. caucasicaK79
              |--A. hughendenensisBRW98
              |--A. incurva (Etheridge 1902) [=Aucella incurva]F71
              |--A. kamtschaticaK79
              `--A. pompeckjiK79

*Type species of generic name indicated


[A26] Allan, R. S. 1926. The geology and palaeontology of the Lower Waihao Basin, south Canterbury, New Zealand. Transactions and Proceedings of the New Zealand Institute 57: 265–309.

[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.

[C96] Cope, J. C. W. 1996. The early evolution of the Bivalvia. In: Taylor, J. D. (ed.) Origin and Evolutionary Radiation of the Mollusca pp. 361–370. Oxford University Press: Oxford.

[C04] Cope, J. C. W. 2004. Bivalve and rostroconch mollusks. In: Webby, B. D., F. Paris, M. L. Droser & I. G. Percival (eds) The Great Ordovician Biodiversification Event pp. 196–208. Columbia University Press.

[DX84] Ding Y., Xia G., Duan C., Li W., Liu X. & Liang Z. 1984. Study on the early Permian stratigraphy and fauna in Zhesi district, Nei Mongol Zizhiqu (Inner Mongolia). Bulletin Tianjin Institure Geol. Min. Res. 10.

[F26] Finlay, H. J. 1926. A further commentary on New Zealand molluscan systematics. Transactions and Proceedings of the New Zealand Institute 57: 320–485.

[F71] Fletcher, H. O. 1971. Catalogue of type specimens of fossils in the Australian Museum, Sydney. Australian Museum Memoir 13: 1–167.

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

[G31] Grabau, A. W. 1931. The Permian of Mongolia: A report on the Permian fauna of the Jisu Honguer limestone of Mongolia and its relations to the Permian of other parts of the world. American Museum of Natural History: New York.

[H09] Hedley, C. 1909. The Marine Fauna of Queensland: Address by the President of Section D. Australasian Association for the Advancement of Science: Brisbane.

[H79] Hölder, H. 1979. Jurassic. In: Robison, R. A., & C. Teichert (eds) Treatise on Invertebrate Paleontology pt A. Introduction. Fossilisation (Taphonomy), Biogeography and Biostratigraphy pp. A390–A417. The Geological Society of America, Inc.: Boulder (Colorado), and The University of Kansas: Lawrence (Kansas).

[H86] Hutton, F. W. 1886. The Mollusca of the Pareora and Oamaru systems of New Zealand. Proceedings of the Linnean Society of New South Wales, series 2, 1 (1): 205–237.

[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.

[J49] Johnson, R. I. 1949. Jesse Wedgwood Mighels with a bibliography and a catalogue of his species. Occasional Papers on Mollusks 1 (14): 213–231.

[KBC03] Kashin, I. A., E. V. Bagaveeva & S. F. Chaplygina. 2003. Fouling communities of hydrotechnical constructions in Nakhodka Bay (Sea of Japan). Russian Journal of Marine Biology 29: 267–283.

[K79] Kauffman, E. G. 1979. Cretaceous. In: Robison, R. A., & C. Teichert (eds) Treatise on Invertebrate Paleontology pt A. Introduction. Fossilisation (Taphonomy), Biogeography and Biostratigraphy pp. A418–A487. The Geological Society of America, Inc.: Boulder (Colorado), and The University of Kansas: Lawrence (Kansas).

[K92] Kozloff, E. N. 1992. The genera of the phylum Orthonectida. Cahiers de Biologie Marine 33: 377–406.

[M49] Mason, B. 1949. The geology of Mandamus-Pahau district, north Canterbury. Transactions and Proceedings of the Royal Society of New Zealand 77 (3): 403–428.

[M63] Merrill, A. S. 1963. Mollusks from a buoy off Georgia. Nautilus 77 (2): 68–70.

[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.

[P61] Powell, A. W. B. 1961. Shells of New Zealand: An illustrated handbook 4th ed. Whitcombe and Tombs Limited: Christchurch.

[PG98] Probert, P. K., & S. L. Grove. 1998. Macrobenthic assemblages of the continental shelf and upper slope off the west coast of South Island, New Zealand. Journal of the Royal Society of New Zealand 28: 259–280.

[SY85] Sha J.-G. & Yuan F.-S. 1985. Buchia fauna from Dong’anzhen Formation near Dong’an of Raohe County, Heilongjiang. Acta Palaeontologica Sinica 24 (6): 651–662.

[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.

[TP02] Todd, J. A., & T. J. Palmer. 2002. The Jurassic bivalve genus Placunopsis: new evidence on anatomy and affinities. Palaeontology 45 (3): 487–510.

[W84] Waller, T. R. 1984. The ctenolium of scallop shells: functional morphology and evolution of a key family-level character in the Pectinacea (Mollusca: Bivalvia). Malacologia 25 (1): 203–219.

[W06] Waller, T. R. 2006. Phylogeny of families in the Pectinoidea (Mollusca: Bivalvia): importance of the fossil record. Zoological Journal of the Linnean Society 148 (3): 313–342.

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