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Worthenia speciosa
Taxonomy
Pleurotomaria speciosa was named by Meek and Worthen (1860). It is not a trace fossil.
It was recombined as Worthenia (Worthenia) speciosa by Karapunar and Nützel (2022); it was recombined as Worthenia speciosa by Chronic (1953), Yochelson and Saunders (1967), Batten (1989), Kues (1995), Batten (1995), Kues and Batten (2001) and Wagner (2023).
It was recombined as Worthenia (Worthenia) speciosa by Karapunar and Nützel (2022); it was recombined as Worthenia speciosa by Chronic (1953), Yochelson and Saunders (1967), Batten (1989), Kues (1995), Batten (1995), Kues and Batten (2001) and Wagner (2023).
Sister species lacking formal opinion data
Synonyms
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Synonymy list
| Year | Name and author |
|---|---|
| 1860 | Pleurotomaria speciosa Meek and Worthen p. 461 |
| 1881 | Pleurotomaria perizomata White |
| 1953 | Worthenia speciosa Chronic p. 134 figs. Pl 27, fig 12 |
| 1967 | Worthenia speciosa Yochelson and Saunders p. 242 |
| 1989 | Worthenia speciosa Batten p. 48 figs. pl. 9 f. 10-12 |
| 1995 | Worthenia speciosa Batten pp. 19 – 20 fig. 25 |
| 1995 | Worthenia speciosa Kues p. 83 fig. 9.23,9.24 |
| 2001 | Worthenia speciosa Kues and Batten pp. 31 - 32 figs. f. 6.21-6.25 |
| 2022 | Worthenia (Worthenia) speciosa Karapunar and Nützel p. 60 fig. 37 |
| 2023 | Worthenia speciosa Wagner p. 5565 |
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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.
†Worthenia speciosa Meek and Worthen 1860
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Invalid names: Worthenia perizomata White 1881 [synonym]
Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| R. L. Batten 1995 | Trochiform shells with welldeveloped spiral and collabral ornament. Early whorls smooth, evenly inflated with selenizone located at midwhorl periphery. Flat selenizone bordered by two prominent spiral threads. Upper whorl surface convexo-concave with from two to eight or more evenly spaced and developed spiral threads. Narrow flattened platform adjacent to suture. Prominent collabral threads or cords form interference nodes with spiral ornament. Selenizone on shoulder is flat with two spiral margin threads. Collabral ornament forms lunulae and interference nodes with medial spiral cord so that selenizone appears convex. Concave alveozone has one to four spiral threads. Hemiomphalus. Flatly rounded base has numerous spiral threads. Columellar lip is reflexed and thickened into a callus. Ornament is resorbed on parietal surface. |