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Acila (Truncacila) hokkaidoensis

Bivalvia - Nuculida - Nuculidae

Taxonomy
Nucula (Acila) hokkaidoensis was named by Nagao (1932) [DISTRIBUTION: Cretaceous; Japan.]. It is not a trace fossil.

It was recombined as Acila (Truncacila) hokkaidoensis by Schenck (1936) and Tashiro and Kozai (1982).

Synonymy list
YearName and author
1932Nucula (Acila) hokkaidoensis Nagao pp. 28-30
1936Acila (Truncacila) hokkaidoensis Schenck p. 52
1982Acila (Truncacila) hokkaidoensis Tashiro and Kozai p. 70

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RankNameAuthor
kingdomAnimalia()
—Bilateria
—EubilateriaAx 1987
—Protostomia
—Spiralia
superphylumLophotrochozoa
phylumMollusca
classBivalvia
—Eubivalvia
RankNameAuthor
subclassProtobranchia(Pelseneer 1889)
superorderNuculiformiiDall 1889
orderNuculida(Dall 1889)
superfamilyNuculoidea(Gray 1824)
familyNuculidaeGray 1824
genusAcilaAdams and Adams 1858
subgenusTruncacilaGrant and Gale 1931
specieshokkaidoensis(Nagao 1932)

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.

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Diagnosis
No diagnoses are available
Measurements
partNmeanminimummaximummedians.d.
height216.016.016.016.0-

Composition: aragonitef
Entire body: yess
Adult length: 10 to < 100s
Adult width: 1.0 to < 10s
Adult height: 10 to < 100s
Thickness: thinf
Folds: nonef
Ribbing: minorf
Spines: nonef
Internal reinforcement: nonef
Ontogeny: accretionf
Environment: coastal, inner shelf, outer shelf, oceanicf
Locomotion: facultatively mobilef
Life habit: infaunalf
Diet: deposit feederf
Diet 2: suspension feederf
Vision: blindc
Created: 2009-02-27 21:37:20
Modified: 2009-02-27 23:47:57
Source: s = species, f = family, c = class
References: Aberhan et al. 2004, Mikkelsen and Bieler 2008, Tashiro and Kozai 1982

Age range: base of the Cenomanian to the top of the Thanetian or 100.50000 to 56.00000 Ma

Collections (29 total)


Time interval Ma Country or state Original ID and collection number
Cenomanian100.5 - 93.9Japan Acila hokkaidoensis (87007)
Turonian93.9 - 89.8Japan (Teshio) Acila hokkaidoensis (39822)
Early/Lower Turonian93.5 - 89.3Japan Acila hokkaidoensis (87008)
Coniacian89.8 - 86.3Japan (Teshio) Acila hokkaidoensis (40122)
Early/Lower Coniacian89.3 - 85.8Japan (Fukushima) Acila hokkaidoensis (39626)
Santonian86.3 - 83.6Japan (Teshio) Acila hokkaidoensis (40126)
Early/Lower Santonian85.8 - 83.5Japan Acila hokkaidoensis (115281 115284 219958)
Late/Upper Santonian85.8 - 83.5Japan Acila hokkaidoensis (82349 87009 115287 115289 115295 115297 115299)
Campanian83.6 - 72.1Japan (Osaka, Wakayama) Acila hokkaidoensis (39905)
Campanian83.6 - 72.1Japan (Hyogo) Acila hokkaidoensis (39575)
Campanian83.6 - 72.1Japan (Teshio) Acila hokkaidoensis (39821)
Campanian83.6 - 72.1Japan Acila hokkaidoensis (62239 117146)
Campanian83.6 - 72.1Japan (Hokkaido) Acila hokkaidoensis (117147)
Early/Lower Campanian83.5 - 70.6Japan Acila hokkaidoensis (82332 82338 82340 82382 82384)
Maastrichtian72.1 - 66.0Russian Federation (Sakhalin) Truncacila hokkaidoensis (1353)
Selandian - Thanetian61.6 - 56.0Japan (Hokkaido) Acila hokkaidoensis (206290)