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Worthenia speciosa

Gastropoda - Murchisoniina - Phymatopleuridae

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).

Sister species lacking formal opinion data

Synonyms
Synonymy list
YearName and author
1860Pleurotomaria speciosa Meek and Worthen p. 461
1881Pleurotomaria perizomata White
1953Worthenia speciosa Chronic p. 134 figs. Pl 27, fig 12
1967Worthenia speciosa Yochelson and Saunders p. 242
1989Worthenia speciosa Batten p. 48 figs. pl. 9 f. 10-12
1995Worthenia speciosa Batten pp. 19 – 20 fig. 25
1995Worthenia speciosa Kues p. 83 fig. 9.23,9.24
2001Worthenia speciosa Kues and Batten pp. 31 - 32 figs. f. 6.21-6.25
2022Worthenia (Worthenia) speciosa Karapunar and Nützel p. 60 fig. 37
2023Worthenia speciosa Wagner p. 5565

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RankNameAuthor
kingdomAnimalia()
Bilateria
EubilateriaAx 1987
Protostomia
Spiralia
superphylumLophotrochozoa
phylumMollusca
RankNameAuthor
classGastropoda
subclassOrthogastropoda
orderMurchisoniina
superfamilyEotomarioidea
familyPhymatopleuridae
genusWorthenia
speciesspeciosa()

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
ReferenceDiagnosis
R. L. Batten 1995Trochiform 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
partNmeanminimummaximummedians.d.
shell height225.314.843.329.020.2
shell diameter225.513.548.130.824.5

Composition: aragoniteo
Locomotion: actively mobileo
Life habit: epifaunalo
Diet: detritivoreo
Vision: limitedo
Created: 2009-09-21 10:40:01
Modified: 2024-02-04 19:53:32
Source: o = order
Reference: Bambach et al. 2007

Age range: base of the Morrowan to the top of the Wordian or 318.10000 to 265.10000 Ma

Collections (31 total)


Time interval Ma Country or state Original ID and collection number
Bashkirian - Moscovian323.2 - 307.0Peru (Piura) Worthenia speciosa (41390)
Morrowan318.1 - 314.6USA (Texas) Worthenia speciosa (79966)
Kashirian - Myachkovian313.8 - 306.95USA (New mexico) Worthenia tabulata (46548)
Desmoinesian313.8 - 305.9USA (Texas) Worthenia speciosa (11100 92870)
Desmoinesian313.8 - 305.9USA (New Mexico) Worthenia speciosa (46536)
Kasimovian307.0 - 303.7USA (Texas) Worthenia speciosa (170908)
Missourian305.9 - 303.4USA (Texas) Worthenia speciosa (156737)
Missourian305.9 - 303.4USA (Ohio) Worthenia speciosa (174923)
Gzhelian303.7 - 298.9USA (Texas) Worthenia speciosa (43476 105509)
Virgilian303.4 - 298.9USA (New Mexico) Worthenia speciosa (146819)
Virgilian303.4 - 298.9USA (Ohio) Worthenia speciosa (71993)
Asselian298.9 - 295.5USA (Texas) Worthenia speciosa (43509)
Sakmarian295.5 - 290.1USA (Texas) Worthenia speciosa (101780)
Sakmarian295.5 - 290.1USA (New Mexico) Worthenia speciosa (39153 39154 39155)
Artinskian290.1 - 279.3USA (New Mexico) Worthenia speciosa (101770 101784)
Artinskian290.1 - 279.3USA (Texas) Worthenia speciosa (90007 101769 101773 101812)
Kungurian279.3 - 272.3USA (Texas) Worthenia speciosa (43562 81949 101802 101865 101866)
Roadian272.3 - 268.8USA (Texas) Worthenia speciosa (101783)
Wordian268.8 - 265.1USA (Texas) Worthenia speciosa (101864)