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Leptoptygma oligospira
Taxonomy
Loxonema oligospira was named by Winchell (1863). It is a 3D body fossil. Its type locality is Prospect Hill, bluff above river south of Burlington, which is in a Famennian marine sandstone in the English River Formation of Iowa.
It was recombined as Holopea oligospira by Girty (1915) and Yochelson and Saunders (1967); it was recombined as Leptoptygma oligospira by Wagner (2023).
It was recombined as Holopea oligospira by Girty (1915) and Yochelson and Saunders (1967); it was recombined as Leptoptygma oligospira by Wagner (2023).
Sister species lacking formal opinion data
Synonymy list
| Year | Name and author |
|---|---|
| 1863 | Loxonema oligospira Winchell p. 22 |
| 1900 | Loxonema oligospira Weller p. 106 figs. pl. 7 f. 4 |
| 1915 | Holopea oligospira Girty p. 190 |
| 1967 | Holopea oligospira Yochelson and Saunders p. 98 |
| 2023 | Leptoptygma oligospira Wagner p. S7876 |
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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.
†Leptoptygma oligospira Winchell 1863
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Diagnosis
No diagnoses are available
Measurements
No measurements are available
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| Source: f = family, o = order | |||||
| References: Wagner 2023, Bambach et al. 2007 | |||||