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Aequipecten (scallop)

Bivalvia - Pectinida - Pectinidae

Taxonomy
Aequipecten was named by Fischer (1886) [Sepkoski's age data: T Eo-m R Sepkoski's reference number: 1112]. It is extant.

It was reranked as Pecten (Aequipecten) by Arnold (1906), Vredenburg (1928), Willett (1937), Ladd and Hoffmeister (1945) and Heering (1950); it was reranked as Chlamys (Aequipecten) by Mansfield (1940), Gardner (1943), Glibert (1957), Marasti (1973), Dockery (1982) and Islamoglu and Taner (1995); it was reranked as Lyropecten (Aequipecten) by van Regteren Altena et al. (1969), Glibert (1976) and Glibert (1985).

It was assigned to Pecten by Arnold (1906), Vredenburg (1928), Willett (1937), Ladd and Hoffmeister (1945) and Heering (1950); to Lyropecten by van Regteren Altena et al. (1969), Glibert (1976) and Glibert (1985); to Chlamys by Mansfield (1940), Gardner (1943), Glibert (1957), Marasti (1973), Dockery (1982) and Islamoglu and Taner (1995); to Aequipectini by Marquet and Dijkstra (2000); to Pterioida by Sepkoski (2002); to Chlamydinae by del Rio (1992) and Marquet (2002); to Pectinidae by Olsson (1967), Moore (1984), Wienrich (1999), Todd (2001) and Vera-Peláez et al. (2004); and to Aequipectinini by Bouchet et al. (2010).

Species
A. (Aequipecten), A. bierringi, A. commutatus, A. comparilis, A. decorus, A. florida, A. macrotis, A. malvinae, A. opercularis (syn. Pecten gracilis, Ostrea dubia), A. paranensis, A. radians, A. suwaneensis, A. tehuelchus, A. trigintaradiata, A. wagenaari, Chlamys (Aequipecten) chickaria, Chlamys (Aequipecten) cocoanus, Chlamys (Aequipecten) durchanaensis, Chlamys (Aequipecten) gainestownensis, Chlamys (Aequipecten) glendonensis, Chlamys (Aequipecten) redwoodensis, Chlamys (Aequipecten) subtripartita, Chlamys (Aequipecten) thunensis, Chlamys (Aequipecten) waynensis, Lyropecten (Aequipecten) acuteplicatus (syn. Pecten mayereymari), Lyropecten (Aequipecten) arlesiensis (syn. Pecten vraconensis), Lyropecten (Aequipecten) campaniensis, Lyropecten (Aequipecten) ternatus, Lyropecten (Aequipecten) walleri, Pecten (Aequipecten) hallae, Pecten (Aequipecten) palmeri, Pecten (Aequipecten) preglyptus, Pecten (Aequipecten) seinaamensis, Pecten (Aequipecten) subserraticosta
Species lacking formal opinion data
A. insuetus, A. intercedens, A. liberata, A. maturensis, A. palinurus, A. seniensis, A. subarmatus, A. subfibrosus, A. validus, Chlamys arachnoideus, Chlamys flabellum, Chlamys judaica, Chlamys perrugosa, Pecten arachnoideus, Pecten kikaiensis, Pecten northamptoni

Synonyms
Synonymy list
YearName and author
1886Aequipecten Fischer
1906Pecten (Aequipecten) Arnold p. 49
1928Pecten (Aequipecten) Vredenburg p. 430
1937Pecten (Aequipecten) Willett p. 387
1940Chlamys (Aequipecten) Mansfield p. 181
1943Chlamys (Aequipecten) Gardner p. 35
1945Pecten (Aequipecten) Ladd and Hoffmeister
1950Pecten (Aequipecten) Heering p. 13
1957Chlamys (Aequipecten) Glibert p. 28
1967Aequipecten Olsson p. 8
1969Lyropecten (Aequipecten) van Regteren Altena and et al. p. 16
1973Chlamys (Aequipecten) Marasti p. 102
1976Lyropecten (Aequipecten) Glibert p. 40
1982Chlamys (Aequipecten) Dockery p. 42
1984Aequipecten Moore p. B31
1985Lyropecten (Aequipecten) Glibert p. 275
1985Aequipecten (Perapecten) Wagner p. 84
1991Perapecten Wagner p. 42
1992Aequipecten del Rio p. 30
1995Chlamys (Aequipecten) Islamoglu and Taner p. 156
1999Aequipecten Wienrich p. 218
2000Aequipecten Marquet and Dijkstra p. 40
2001Aequipecten Todd
2002Aequipecten Marquet
2002Aequipecten Sepkoski
2004Aequipecten Vera-Peláez et al. p. 255
2010Aequipecten Bouchet et al.

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RankNameAuthor
kingdomAnimalia()
—Bilateria
—EubilateriaAx 1987
—Protostomia
—Spiralia
superphylumLophotrochozoa
phylumMollusca
classBivalvia
—Eubivalvia
subclassAutobranchia(Groblen 1894)
infraclassPteriomorphia(Beurlen 1944)
RankNameAuthor
—OstreomorphiFerussac 1822
—OstreioniFerussac 1822
—OstreataFerussac 1822
superorderOstreiformiiFerussac 1822
orderPectinida(Gray 1854)
suborderPectinidina(Adams and Adams 1858)
superfamilyPectinoideaRafinesque 1815
—PectinoidaeRafinesque 1815
familyPectinidaeWilkes 1810
subfamilyChlamydinaevon Teppner 1922
genusAequipectenFischer 1886

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. Aequipecten Fischer 1886 [scallop]
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Subg. Aequipecten (Aequipecten) Fischer 1886
†Aequipecten bierringi Rosenkrantz 1934
Aequipecten commutatus Monterosato 1875
†Aequipecten comparilis Tuomey and Holmes 1855
†Aequipecten decorus Cooke 1919
Aequipecten florida Gmelin 1791
†Aequipecten macrotis Sowerby 1847
†Aequipecten malvinae Dubois de Montpereux 1831
+
Invalid names: Ostrea dubia Gmelin 1791 [synonym], Pecten gracilis Sowerby 1825 [synonym]
†Aequipecten paranensis d'Orbigny 1842
†Aequipecten radians Nyst and Westendorp 1839
Aequipecten tehuelchus d'Orbigny 1842
†Aequipecten wagenaari Marquet and Dijkstra 2000
†Chlamys (Aequipecten) thunensis Mayer-Eymar 1887
+
Invalid names: Pecten mayereymari Newton 1898 [synonym]
+
Invalid names: Pecten vraconensis Pictet and Campiche 1870 [synonym]
Invalid names: Perapecten Wagner 1985 [synonym]
Diagnosis
No diagnoses are available
Measurements
No measurements are available
Composition: low Mg calcitef
Composition 2: aragonitef
Environment: marineo
Locomotion: facultatively mobileg
Life habit: epifaunalg
Diet: suspension feederg
Vision: limitedf
Comments: LIFE HISTORY: EP, SE, BA, SU according to Todd (2001).g
Created: 2009-09-09 08:17:08
Modified: 2009-09-09 10:17:08
Source: g = genus, f = family, o = order
References: Sanchez Roig 1926, Kiessling 2004

Age range

Maximum range based only on fossils: base of the Anisian to the top of the Holocene or 247.20000 to 0.00000 Ma
Minimum age of oldest fossil (stem group age): 242.0 Ma

Collections (401 total)

Oldest occurrences

Time interval Ma Country or state Original ID and collection number
Anisian247.2 - 242.0China (Qinghai) Aequipecten alternicostatus (101042) Aequipecten intercedens, Aequipecten sp. (101048) Aequipecten interstriatus, Aequipecten magneauritus (101044) Aequipecten sp. (101025)
Norian228.0 - 208.5Indonesia (Timor) Aequipecten subserraticosta (205471) Pecten subserraticosta (205278 205463 205495) Pecten subserraticosta, Pecten seinaamensis (205283) Pecten subserricosta (205492)
Lacian221.5 - 215.56Indonesia Aequipecten misolensis (204423)
Lacian221.5 - 215.56Indonesia (Maluku) Aequipecten sp. (204318)
Angulata201.3 - 196.5Luxembourg Aequipecten sp. (149756)
Sinemurian199.3 - 190.8Japan (Yamaguchi) Aequipecten toyorensis (40560)
Early/Lower Sinemurian196.5 - 189.6Slovakia Chlamys sp. (141986)
Pliensbachian190.8 - 182.7Greenland Aequipecten aequivalvis (161963 161966 161968 161969 162056 162080 162083 162112 162113) Aequipecten bierringi (161974 162060 162262 162263 162276)
Early/Lower Pliensbachian189.6 - 183.0Greenland Aequipecten bierringi (161983)
Jamesoni189.6 - 183.0Greenland Aequipecten aequivalvis (161976 161977 162071 162072 162089 162109 162271)
Bajocian170.3 - 168.3Saudi Arabia Aequipecten sp. (45268)
Bathonian168.3 - 166.1France Aequipecten bouchardi (98247)
Early/Lower Bathonian167.7 - 164.7Russian Federation Aequipecten sp. (68351)
Callovian166.1 - 163.5Ethiopia Chlamys sp. (93482)
Callovian166.1 - 163.5Tanzania Aequipecten palinurus (36430)
Oxfordian163.5 - 157.3Spain Aequipecten sp. (67866)
Oxfordian - Kimmeridgian163.5 - 152.1Russian Federation Aequipecten subfibrosus (213006)
Oxfordian - Tithonian163.5 - 145.0Svalbard and Jan Mayen Chlamys arachnoideus (212487)
Oxfordian - Tithonian163.5 - 145.0Japan (Kumamoto) Aequipecten vulgaris, Aequipecten kotsubu (40342)
Oxfordian - Tithonian163.5 - 145.0Japan (Tokushima) Aequipecten vulgaris, Aequipecten kotsubu (40480)