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Emiliodonta cuerdai
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).
It was recombined as Emiliodonta cuerdai by Sánchez (2010).
Synonymy list
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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
| Reference | Diagnosis | |
|---|---|---|
| T. M. Sanchez 1999 | Praenuculinae 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
| part | N | mean | minimum | maximum | median | s.d. | |
|---|---|---|---|---|---|---|---|
| valve height | 6 | 4.37 | 3.30 | 5.50 | 4.39 | 0.777 | |
| valve diagonal | 6 | 4.18 | - | - | 4.18 | - |
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| Source: f = family, c = class | |||||
| References: Meyer et al. 2009, Aberhan et al. 2004 | |||||