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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 |
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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 | |
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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. |
Measurements
part | N | mean | minimum | maximum | median | s.d. | |
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shell height | 2 | 25.3 | 14.8 | 43.3 | 29.0 | 20.2 | |
shell diameter | 2 | 25.5 | 13.5 | 48.1 | 30.8 | 24.5 |
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Source: o = order | |||||
Reference: Bambach et al. 2007 |
Collections (31 total)
Time interval | Ma | Country or state | Original ID and collection number |
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Bashkirian - Moscovian | Peru (Piura) | Worthenia speciosa (41390) | |
Morrowan | USA (Texas) | Worthenia speciosa (79966) | |
Kashirian - Myachkovian | USA (New mexico) | Worthenia tabulata (46548) | |
Desmoinesian | USA (Texas) | Worthenia speciosa (11100 92870) | |
Desmoinesian | USA (New Mexico) | Worthenia speciosa (46536) | |
Kasimovian | USA (Texas) | Worthenia speciosa (170908) | |
Missourian | USA (Texas) | Worthenia speciosa (156737) | |
Missourian | USA (Ohio) | Worthenia speciosa (174923) | |
Gzhelian | USA (Texas) | Worthenia speciosa (43476 105509) | |
Virgilian | USA (New Mexico) | Worthenia speciosa (146819) | |
Virgilian | USA (Ohio) | Worthenia speciosa (71993) | |
Asselian | USA (Texas) | Worthenia speciosa (43509) | |
Sakmarian | USA (Texas) | Worthenia speciosa (101780) | |
Sakmarian | USA (New Mexico) | Worthenia speciosa (39153 39154 39155) | |
Artinskian | USA (New Mexico) | Worthenia speciosa (101770 101784) | |
Artinskian | USA (Texas) | Worthenia speciosa (90007 101769 101773 101812) | |
Kungurian | USA (Texas) | Worthenia speciosa (43562 81949 101802 101865 101866) | |
Roadian | USA (Texas) | Worthenia speciosa (101783) | |
Wordian | USA (Texas) | Worthenia speciosa (101864) |