Amusium
Amusium is a genus of scallops, marine bivalve molluscs belonging to the family Pectinidae. Previously, the genus contained several extant genera, but as of 2025 most species, such as A. balloti, A. fenestratum, and A. japonicum, were moved to the genera Dentamusium, Euvola, Parvamussium, Pecten, Propeamussium, and Ylistrum; subgenera were elevated to create some genera.
Currently, Amusium has a single recognized living species; Amusium pleuronectes.
The following are recognized extinct species within this genus :Amusium aguaclarensis Hodson, 1927 W 'FAmusium alazanum C. W. Cooke, 1928 W'Amusium balloti FAmusium bocasense Olsson, 1922 W 'FAmusium danei W'Amusium darwinianum d'Orbigny, 1846 WAmusium decemcostatum WAmusium filosum Hauer, 1857 FAmusium figueirasi S. Martínez, 1998 WAmusium hulshofi Martin, 1883 W 'FAmusium kilifiense Eames & L. R. Cox, 1956 W'Amusium lompocensis WAmusium lucens Tate, 1886 FAmusium lyonii WAmusium mafiaense Eames & L. R. Cox, 1956 WAmusium mauryi Hubbard, 1920 WAmusium mimyum Woodring, 1982 W 'FAmusium mortoni Ravenel, 1844 W' FAmusium noduliferum WAmusium ocalanum WAmusium orientale Dey, 1961 FAmusium papyraceum Gabb, 1873 W 'FAmusium paris del Rio, 1992 W' FAmusium pembaense Eames & L. R. Cox, 1956 WAmusium placunoides WAmusium praeobliteratum WAmusium precursor WAmusium rorii Reichler, 2010 WAmusium sol Brown and Pilsbry, 1913 W 'FAmusium toulae Brown and Pilsbry, 1911 W' FAmusium tumbatuense Eames & L. R. Cox, 1956 WAmussium destefanii FAmussium squamulum FAmussium subcorneum FPecten condoni FPecten laurentii FPecten donaiensis FPleuronectes elongatus FPleuronectes vulsu F
A number of extinct Amusium species were either moved to genera such as Costellamusiopecten, Eburneopecten, Pernopecten, and Pseudentolium; or split out into the elevated subgenera Korobkovia and Lentipecten.
This genus is known in the fossil record from the Carboniferous period to the Quaternary period. These fossils have been found all over the world.