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Nuculana (Saccella) punjabensis
Taxonomy
Nuculana (Saccella) punjabensis was named by Eames (1951) [DISTRIBUTION: Eocene; Pakistan.]. Its type specimen is L. 79854, a shell, and it is not a trace fossil. Its type locality is Fossil Bed F.2680, Zinda Pir, which is in a Ypresian marine shale in the Ghazij Formation of Pakistan.
Sister species lacking formal opinion data
N. alferovi, N. amuriensis, N. bathurstensis, N. borsonii, N. calkinsi, N. camelorum, N. castor, N. coelata, N. coloradoensis, N. complanata, N. corbetensis, N. corpulentoides, N. demissa, N. deshayesiana, N. dodona, N. dodsoni, N. duplicarina, N. equilateralis, N. evansi, N. fiski, N. inornata, N. kenyana, N. kittensis, N. minmiensis, N. mutuata, N. saffordana, N. securiformis, N. smirna, N. sulcellata, N. travisana, N. turgeo, N. tyrolensis, N. yunnanensis, N. pennula, N. compalana, N. slodkewitschi, N. parleacllli, N. taioma, N. turgeo, N. vadosa, N. smithvillensis, N. carinata, N. elliptica, N. perdita, N. perlonga, N. yatsushiroensis, N. meriani, N. duplicarina, N. fragilis, N. gnonom, N. nagaoi, N. wajampolkana, Saccella communis, Saccella miensis, Saccella panayensis, Saccella robusta, Saccella tumida
Synonymy list
| Year | Name and author |
|---|---|
| 1951 | Nuculana (Saccella) punjabensis Eames p. 325 figs. pl. 9, figs. 13a, b |
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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.
†Nuculana (Saccella) punjabensis Eames 1951
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Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| F. E. Eames 1951 | Shell small, strongly inflated, outline oval-subquadrate, although the
rostra1 region is slightly broken. Umbos not very prominent, distinct, submedian. Antero- dorsal margin rather short, very slightly convex, gently descendent. Anterior end rather broadly rounded. Ventral margin convex, distinctly upturned laterally. Posterior end appearing obliquely truncated on account of being slightly broken, but the ornament shows that it was bluntly rostrate, the tip of the rostrum being situated rather high up. Postero- dorsal margin gently concave, a little longer than the antero-dorsal margin and a little more descendent. Ornament consisting of very fine, closely spaced concentric threads of which there are about 15 in 2 mm. on the ventral portion of the shell; these threads are a little more closely spaced near the ventral margin. Characters of lunule and escutcheon not determinable. |
Measurements
No measurements are available
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| Source: g = genus, f = family, c = class | |||||
| References: Aberhan et al. 2004, Sanchez Roig 1926, Kiessling 2004 | |||||
Collections
No collection or age range data are available