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Taxonomy
Acila was named by Adams and Adams (1858) [Sepkoski's age data: T Ol-u R]. It is extant.
It was reranked as Nucula (Acila) by Gabb (1869), Arnold (1903), Weaver and Palmer (1922), Oldroyd (1925), Nagao (1928), Nagao (1928), Grant, IV and Gale (1931) and Nagao (1932).
It was assigned to Nucula by Gabb (1869), Arnold (1903), Weaver and Palmer (1922), Oldroyd (1925), Nagao (1928), Nagao (1928), Grant, IV and Gale (1931) and Nagao (1932); to Nuculoida by Sepkoski (2002); and to Nuculidae by Olsson (1931), Schenck (1936), Woodring (1938), Turner (1938), Durham (1944), Faustman (1964), Hertlein and Grant (1972), Woodring (1973), Moore (1976), Vokes (1980), Tashiro and Kozai (1982), Moore (1983), Moore (1984), Squires (1984), Squires (1987), Squires (1988), Squires (1999), Coan et al. (2000), Todd (2001), Matsubara (2002), Huber (2010) and Coan and Valentich-Scott (2012).
It was reranked as Nucula (Acila) by Gabb (1869), Arnold (1903), Weaver and Palmer (1922), Oldroyd (1925), Nagao (1928), Nagao (1928), Grant, IV and Gale (1931) and Nagao (1932).
It was assigned to Nucula by Gabb (1869), Arnold (1903), Weaver and Palmer (1922), Oldroyd (1925), Nagao (1928), Nagao (1928), Grant, IV and Gale (1931) and Nagao (1932); to Nuculoida by Sepkoski (2002); and to Nuculidae by Olsson (1931), Schenck (1936), Woodring (1938), Turner (1938), Durham (1944), Faustman (1964), Hertlein and Grant (1972), Woodring (1973), Moore (1976), Vokes (1980), Tashiro and Kozai (1982), Moore (1983), Moore (1984), Squires (1984), Squires (1987), Squires (1988), Squires (1999), Coan et al. (2000), Todd (2001), Matsubara (2002), Huber (2010) and Coan and Valentich-Scott (2012).
Species
Species lacking formal opinion data
Synonymy list
| Year | Name and author |
|---|---|
| 1858 | Acila Adams and Adams p. 545 |
| 1869 | Nucula (Acila) Gabb p. 197 |
| 1903 | Nucula (Acila) Arnold p. 95 |
| 1922 | Nucula (Acila) Weaver and Palmer p. 6 |
| 1925 | Nucula (Acila) Oldroyd p. 2 |
| 1928 | Nucula (Acila) Nagao p. 21 |
| 1931 | Nucula (Acila) Grant, IV and Gale |
| 1931 | Acila Olsson p. 34 |
| 1932 | Nucula (Acila) Nagao p. 50 |
| 1936 | Acila Schenck p. 23 |
| 1938 | Acila Turner p. 41 |
| 1938 | Acila Woodring p. 28 |
| 1944 | Acila Durham p. 133 |
| 1964 | Acila Faustman p. 113 |
| 1972 | Acila Hertlein and Grant p. 147 |
| 1973 | Acila Woodring p. 489 |
| 1976 | Acila Moore p. 42 |
| 1980 | Acila Vokes p. 1 |
| 1982 | Acila Tashiro and Kozai p. 70 |
| 1983 | Acila Moore p. A8 |
| 1984 | Acila Moore p. 25 |
| 1984 | Acila Squires p. 40 |
| 1987 | Acila Squires p. 54 |
| 1988 | Acila Squires p. 17 |
| 1999 | Acila Squires p. 22 |
| 2000 | Acila Coan et al. pp. 71, 74 |
| 2001 | Acila Todd |
| 2002 | Acila Matsubara p. 134 |
| 2002 | Acila Sepkoski |
| 2010 | Acila Huber p. 85 |
| 2012 | Acila Coan and Valentich-Scott p. 34 |
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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.
G. Acila Adams and Adams 1858 [divaricate nutclam]
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Subg. Acila (Acila) Adams and Adams 1858
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†Acila (Acila) brevis Nagao and Huzioka 1941
Acila (Acila) divaricata Hinds 1843
†Acila (Acila) gettysburgensis Regan 1909
†Acila (Acila) isthmica Brown and Pilsbry 1911
†Acila (Acila) isthmica burica Olsson 1942
†Acila (Acila) kholmskensis Krishtofovich 1964
Acila (Acila) mirabilis Adams and Reeve 1850
†Acila (Acila) praedivaricata Nagao and Huzioka 1941
Acila (Acila) semirostrata Grant, IV and Gale 1931
†Acila (Acila) shimoyamai Oyama and Mizuno 1958
†Acila (Acila) submirabilis Makiyama 1926
Acila (Acila) vigilia Schenck 1936
Subg. Acila (Truncacila) Grant and Gale 1931
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†Acila (Truncacila) allisoni Squires and Saul 2006
†Acila (Truncacila) bellula Slodkewitsch 1967
†Acila (Truncacila) bivirgata Sowerby 1836
†Acila (Truncacila) blancoensis Howe 1922
Acila (Truncacila) castrensis Hinds 1843
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Invalid names: Acila (Truncacila) beringiana Slodkevisch 1967 [synonym], Acila empirensis Howe 1922 [synonym], Nucula lyalli Baird 1863 [synonym]
Acila (Truncacila) cobboldae Linnaeus 1767
†Acila (Truncacila) conradi Meek 1864
†Acila (Truncacila) dalli Arnold 1908
†Acila (Truncacila) decisa Conrad 1855
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Invalid names: Acila gabbiana Dickerson 1916 [synonym], Acila lajollaensis Hanna 1927 [synonym], Nucula (Acila) stillwaterensis Weaver and Palmer 1922 [synonym]
†Acila (Truncacila) demessa Finlay 1927
†Acila (Truncacila) galinae Slodkewitsch 1967
†Acila (Truncacila) grahami Squires and Saul 2006
†Acila (Truncacila) haidana Packard 1936
†Acila (Truncacila) hokkaidoensis Nagao 1932
Acila (Truncacila) jucunda Thiele and Jaeckel 1931
†Acila (Truncacila) moneronica Slodkewitsch 1967
†Acila (Truncacila) muta Clark 1918
†Acila (Truncacila) nagaoi Oyama and Mizuno 1958
†Acila (Truncacila) osugii Nagao and Huzioka 1941
†Acila (Truncacila) princeps Schenck 1943
†Acila (Truncacila) rosaria Squires and Saul 2006
†Acila (Truncacila) schencki Stoyanow 1949
†Acila (Truncacila) shumardi Dall 1909
Invalid names: Acila muta markleyensis Clark 1918 [invalid subgroup]
†Acila nehalemensis Hanna 1924
†Acila paita Olsson 1931
†Acila plura Olsson 1931
†Nucula (Acila) ermanni Girard 1843
†Nucula (Acila) hamiltonensis Clark 1932
Nucula (Acila) mirabilis Adams and Reeve 1850
†Nucula (Acila) nelsoni Clark 1925
†Nucula (Acila) packardi Clark 1925
†Nucula (Acila) pugetensis Clark 1925
†Nucula (Acila) yakatagensis Clark 1932
Diagnosis
No diagnoses are available