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Megaxinus

Bivalvia - Lucinida - Lucinidae

Taxonomy
Megaxinus was named by Brugnone (1880) [Sepkoski's age data: T Ol R]. It is extant. Its type is Lucina rostrata.

It was reranked as Miltha (Megaxinus) by Woodring (1925); it was reranked as Saxolucina (Megaxinus) by Glibert and de Heinzelin (1954).

It was assigned to Miltha by Woodring (1925); to Saxolucina by Glibert and de Heinzelin (1954); to Lucininae by Cox et al. (1969), Woodring (1982); to Veneroida by Sepkoski (2002); and to Lucinidae by Kiel and Taviana (2018).

Synonymy list
YearName and author
1880Megaxinus Brugnone p. 146
1925Miltha (Megaxinus) Woodring p. 116
1954Saxolucina (Megaxinus) Glibert and de Heinzelin p. 334
1969Megaxinus Cox et al. p. 498
1982Megaxinus Woodring p. 622
2002Megaxinus Sepkoski
2018Megaxinus Kiel and Taviana

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RankNameAuthor
kingdomAnimalia()
Bilateria
EubilateriaAx 1987
Protostomia
Spiralia
superphylumLophotrochozoa
phylumMollusca
classBivalvia
Eubivalvia
RankNameAuthor
subclassAutobranchia(Groblen 1894)
infraclassHeteroconchia(Gray 1854)
CardiomorphiFerussac 1822
CardioniFerussac 1822
LucinidiaGray 1854
orderLucinida(Stoliczka 1871)
superfamilyLucinoideaFleming 1828
familyLucinidaeFleming 1828
genusMegaxinusBrugnone 1880

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. Megaxinus Brugnone 1880
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Subg. †Megaxinus (Megaxinus) Brugnone 1880
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Megaxinus ellipticus Borson 1825
Megaxinus stironensis Kiel and Taviana 2018
Megaxinus striatula Nyst 1836
Megaxinus transversa Bronn 1831
Miltha (Megaxinus) gluminda Woodring 1925
Diagnosis
No diagnoses are available
Measurements
No measurements are available
Composition: aragonitef
Locomotion: facultatively mobilef
Life habit: deep infaunalf
Diet: chemosymbioticf
Vision: blindc
Created: 2009-05-17 03:07:50
Modified: 2009-10-09 08:44:03
Source: f = family, c = class
References: Aberhan et al. 2004, Kiessling 2004

Age range

Maximum range based only on fossils: base of the Rupelian to the top of the Late/Upper Pleistocene or 33.90000 to 0.01170 Ma
Minimum age of oldest fossil (stem group age): 27.3 Ma

Collections (31 total)


Time interval Ma Country or state Original ID and collection number
Rupelian33.9 - 27.3Belgium M. striatula (111366 111367 111371)
Aquitanian23.04 - 20.45Austria M. bellardianus (99160)
Aquitanian - Burdigalian23.04 - 15.98Germany M. bellardiana (171410)
Burdigalian20.45 - 15.98Austria M. bellardiana (77402)
Burdigalian20.45 - 15.98Italy M. bellardianus, M. incrassatus (178108) M. incrassatus (178110)
Langhian15.98 - 13.82Italy M. bellardianus (178112)
Langhian15.98 - 13.82Italy (Pordenone) M. ellipticus (37372)
Middle Miocene15.98 - 11.63Bulgaria M. incrassatus (60288 60289 60291 60292 60312)
Middle Miocene15.98 - 11.63Poland M. transversus (51690 51691)
Badenian13.82 - 12.8Slovakia M. bellardianus, M. incrassatus (73137)
Serravallian13.82 - 11.63Cyprus Miltha bellardiana (71880) Miltha transversa (71882)
Tortonian11.63 - 7.246Dominican Republic Miltha sp. (74935)
Tortonian11.63 - 7.246Cyprus Miltha sp. (71885) Miltha transversa (71883 71905)
Early/Lower Pliocene5.333 - 3.6Italy (Sardinia) Lucina elliptica (84304)
Zanclean5.333 - 3.6Italy M. stironensis, M. ellipticus (194847)
Zanclean5.333 - 3.6Dominican Republic Miltha sp. (74970)
Late/Upper Pliocene3.6 - 2.58Jamaica Miltha gluminda (58522)
Calabrian1.8 - 0.774Italy (Umbria) M. incrassatus (149603 200420)
Late/Upper Pleistocene0.129 - 0.0117Djibouti Saxolucina lamyi (96787)