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Emiliodonta cuerdai

Bivalvia - Nuculida - Praenuculidae

Taxonomy
Emiliania cuerdai was named by Sanchez (1999). It is a 3D body fossil. Its type locality is south side of the Quebrada La Pola, Eastern flank of Sierra de Villicum, which is in a Caradoc marine conglomerate in the La Cantera Formation of Argentina. It is the type species of Emiliania, Emiliodonta.

It was recombined as Emiliodonta cuerdai by Sánchez (2010).

Synonymy list
YearName and author
1999Emiliania cuerdai Sanchez figs. 7.8-7.13, 8
2010Emiliodonta cuerdai Sánchez p. 761

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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)
familyPraenuculidaeMcAlester 1968
subfamilyConcavodontinae
genusEmiliodonta
speciescuerdai()

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.

Emiliodonta cuerdai Sanchez 1999
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Diagnosis
ReferenceDiagnosis
T. M. Sanchez 1999Praenuculinae with five chevron-shaped anterior teeth, three of which have one branch of chevron reduced, and diverging from a point near umbo; posterior concavodont teeth.

Rounded, inflated shells; prosogyrate, projected umbo placed in anterior half of valve; anterodorsal margin arched ventrally, posterodorsal margin arched dorsally; anterior dental series including two distal chevron-shaped teeth with concavities towards umbo, and three teeth with one chevron branch reduced, disposed divergently from point placed near umbo (Figs. 7.9, 8); posterior dental series with 12 to 14 concavodont teeth increasing in size from umbo to distal end; anterior and posterior dental series meeting by four or five small orthomorphic elements; anterior teeth gently greater than posterior teeth; anterior adductor muscle scar rounded, well impressed; posterior adductor muscle scar not preserved.
Measurements
partNmeanminimummaximummedians.d.
valve height64.373.305.504.390.777
valve diagonal64.18--4.18-

Composition: aragonitec
Locomotion: facultatively mobilef
Attached: yesf
Life habit: shallow infaunalf
Diet: deposit feederf
Vision: blindc
Created: 2009-07-20 12:59:23
Modified: 2009-10-10 17:23:16
Source: f = family, c = class
References: Aberhan et al. 2004, Meyer et al. 2009

Age range: Caradoc or 458.40000 to 449.50000 Ma

Collections: one only


Time interval Ma Country or state Original ID and collection number
Caradoc458.4 - 449.5Argentina (San Juan) Emiliania cuerdai (type locality: 13513)