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Nuculopsis girtyi

Bivalvia - Protobranchia - Nuculidae

Taxonomy
Nuculopsis girtyi was named by Schenck (1934). It is a 3D body fossil.

Synonyms
Synonymy list
YearName and author
1858Nucula ventricosa Hall p. 716 figs. pI. 29, figs. 4, 5a, 6b
1915Nuculopsis ventricosa Girty pp. 117 - 120 figs. Plate XV, figures 1-8
1934Nuculopsis girtyi Schenck pp. 29-30 figs. pl. 2 f. 19; pl. 3 f. 2-2b
1961Nuculopsis girtyi Hoare pp. 101-102 figs. pl. 13 f. 7-8
1978Nuculopsis girtyi Yancey p. 322 figs. Pl 8, figs 7-10
2002Nuculopsis girtyi Kues et al. pp. 127 – 128 figs. 4E-H

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RankNameAuthor
kingdomAnimalia()
Bilateria
EubilateriaAx 1987
Protostomia
Spiralia
Schizocoela
phylumMollusca
classBivalvia
RankNameAuthor
orderProtobranchiaPelseneer 1889
superorderNuculiformiiDall 1889
orderNuculida(Dall 1889)
superfamilyNuculoidea(Gray 1824)
familyNuculidaeGray 1824
genusNuculopsis
speciesgirtyi

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.

Diagnosis
ReferenceDiagnosis
B. S. Kues et al. 2002The valves are elongate-oval in outline, strongly inflated, and possess low, strongly opisthogyrate beaks situated subterminally near the posterior margin. Below the beaks, the posterodorsal margin is distinctly concave, and the lunule and escutcheon are weak to obscure. On relatively undistorted specimens, the width/ length ratio exceeds the height/length ratio. Ornamentation is limited to irregular, often obscure growth lines. Comparison with a large sample of N. girtyi specimens from the Desmoinesian of north-central New Mexico (Kues, 1984) indicates that the Bar B specimens tend to be lower and more elongate, have less prominent beaks, and attain a larger size.