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Turritella ossa
Taxonomy
Turritella ossa was named by Popenoe (1937). Its type specimen is CIT (IP) 3458 and is a 3D body fossil. Its type locality is LACMIP loc. 10719, Black Star Canyon, which is in a Campanian marine horizon in the Williams Formation of California.
Sister species lacking formal opinion data
T. adela, T. agronomica, T. alcida, T. altiliroides, T. ameghinoi, T. anguillana, T. bilara, T. bilboraensis, T. biplicata, T. boycensis, T. brankampi, T. callizona, T. capensis, T. carninata, T. caseyi, T. chalybeatensis, T. chirena, T. claytonensis, T. cobbani, T. codellana, T. collazica, T. crocus, T. diastropha, T. difficilis, T. distincta, T. falconensis, T. fascialiis, T. femina, T. fischeri, T. forgemoli, T. gardnerae, T. hilli, T. jenkinsi, T. kauffmani, T. knysnaensis, T. kowiensis, T. laevissima, T. leonensis, T. lineolta, T. litharia, T. malaspina, T. mcnairyensis, T. megalobasis, T. meunieri, T. millepunctata, T. ministeri, T. molarium, T. monserratensis, T. multilinata, T. mundula, T. neusensis, T. novaesemljae, T. paraensis, T. pedroana, T. pelusae, T. perrieri, T. pirabica, T. pliorecens, T. pontoni, T. poronaiensis, T. premimetes, T. rostrata, T. rubricollis, T. soaresana, T. submortoni, T. tanaguraensis, T. trilara, T. triplicata, T. turneri, T. wagneriana, T. wasana, T. webbi, T. wiedenmayeri, T. pllanigyrata, T. conspicablis, T. chichibuensis, T. premortoni, T. waltonensis
Synonymy list
| Year | Name and author |
|---|---|
| 1937 | Turritella ossa Popenoe p. 401 figs. Plate 49, figure 6 |
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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.
†Turritella ossa Popenoe 1937
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Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| W. P. Popenoe 1937 | Shell small, rather slender; apical angle about 18°; whorls gently convex anteriorly, concave posteriorly; slightly inflated just posterior to the suture, constricted at the suture; suture linear; side and base of whorl meeting in a smooth rounded curve; base oblique, gently convex, ornamented with a few very faint spiral lines most prominent at the juncture of the side and base of the whorl; aperture quadrate, slightly higher than wide; sculpture of growth-lines only, or of very faint spiral lines in addition to the growth lines; growth- lines inclined away from the aperture on the posterior part of the whorl, toward the aperture on the anterior part of the whorl, and crossing the base in almost a straight line. |