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Nuculana (Saccella) soriensis
Taxonomy
Nuculana (Saccella) soriensis was named by Eames (1951) [DISTRIBUTION: Eocene; Pakistan.]. Its type specimen is L. 79857, 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) soriensis Eames p. 327 figs. pl. 9, figs. 15a, 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) soriensis Eames 1951
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Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| F. E. Eames 1951 | Shell suboval, not elongate, with a short rostrum posteriorly, moderately
inflated. Umbos small, pointed, not prominent, submedian. Antero-dorsal margin only moderately long, almost straight, only gently descendent. Anterior end rounded. Ventral margin strongly convex, only young specimens showing a slight emargination posteriorly. Posterior end with a short, pointed rostrum which is situated high up. Postero-dorsal margin straight, moderately long, only gently descendent. Ornament consisting of fine, sharp concentric threads which are about half the width of their intervals on the holotype and on the majority of the topotypes; there are about 10 in 2 mm. on the ventral portion of the holotype. On some of the topotypes the threads appear relatively broader, but this is probably due to wear. Lunule indistinct. Escutcheon long and narrow, limited externally by a fine, sharp carina which runs from the umbo to the tip of the rostrum; this carina keeps close to the postero-dorsal margin, and the concentric ornament apparently does not pass over it. Normal type of taxodont teeth can be seen on the holotype and four of the topotypes. Siphonal region very vaguely depressed. |
Measurements
No measurements are available
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| Source: g = genus, f = family, c = class | |||||
| References: Kiessling 2004, Sanchez Roig 1926, Aberhan et al. 2004 | |||||
Collections
No collection or age range data are available