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Divaricella (Egracina)

Bivalvia - Lucinida - Lucinidae

Taxonomy
Divaricella (Egracina) was named by Chavan (1951) [Sepkoski's age data: Q Plei R]. It is extant. Its type is Tellina dentata.

It was reranked as Egracina by Sepkoski (2002).

It was assigned to Veneroida by Sepkoski (2002); and to Divaricella by Chavan (1951), Cox et al. (1969), Moore (1988), von Cosel (2006).

Synonymy list
YearName and author
1951Divaricella (Egracina) Chavan
1969Divaricella (Egracina) Cox et al. p. 506
1988Divaricella (Egracina) Moore p. D22
2002Egracina Sepkoski
2006Divaricella (Egracina) von Cosel p. 845

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RankNameAuthor
kingdomAnimalia()
Bilateria
EubilateriaAx 1987
Protostomia
Spiralia
superphylumLophotrochozoa
phylumMollusca
classBivalvia
Eubivalvia
subclassAutobranchia(Groblen 1894)
RankNameAuthor
infraclassHeteroconchia(Gray 1854)
CardiomorphiFerussac 1822
CardioniFerussac 1822
LucinidiaGray 1854
orderLucinida(Stoliczka 1871)
superfamilyLucinoideaFleming 1828
familyLucinidaeFleming 1828
genusDivaricellaMartens 1880
subgenusEgracinaChavan 1951

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.

Subg. Divaricella (Egracina) Chavan 1951
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Diagnosis
No diagnoses are available
Measurements
No measurements are available
Composition: aragonitef
Locomotion: facultatively mobileg
Life habit: infaunalg
Diet: chemosymbioticg
Vision: blindc
Created: 2009-09-09 13:59:45
Modified: 2009-09-09 16:02:28
Source: g = genus, f = family, c = class
References: Kiessling 2004, Sanchez Roig 1926, Aberhan et al. 2004

Age range

Maximum range based only on fossils: Eocene or 56.00000 to 33.90000 Ma
Minimum age of oldest fossil (stem group age): 33.9 Ma

Collections (3 total)


Time interval Ma Country or state Original ID and collection number
Eocene56.0 - 33.9USA (California) Lucina cumulata (91476 207112 207115)