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Platyceras erectum
Taxonomy
Acroculia erectum was named by Hall (1843). It is not extant.
It was recombined as Platyceras erectum by Hall (1861), Hall (1862), Hall (1876), Hall (1879), Clarke (1903), Grabau and Shimer (1909), Prosser and Kindle (1913), Fagerstrom (1961), Rollins et al. (1971) and Wagner (2023).
It was recombined as Platyceras erectum by Hall (1861), Hall (1862), Hall (1876), Hall (1879), Clarke (1903), Grabau and Shimer (1909), Prosser and Kindle (1913), Fagerstrom (1961), Rollins et al. (1971) and Wagner (2023).
Sister species lacking formal opinion data
Synonymy list
Year | Name and author |
---|---|
1843 | Acroculia erectum Hall |
1861 | Platyceras erectum Hall p. 4 |
1862 | Platyceras erectum Hall p. 32 |
1876 | Platyceras erectum Hall figs. pl. 2 |
1879 | Platyceras erectum Hall p. 5 figs. pl. 2 f. 4-11 |
1903 | Platyceras erectum Clarke p. 549 |
1909 | Platyceras erectum Grabau and Shimer p. 683 figs. f. 963a |
1913 | Platyceras erectum Prosser and Kindle pp. 296 - 297 figs. pl. 37 f. 1-5 |
1961 | Platyceras erectum Fagerstrom p. 39 figs. pl. 13 f. 2 |
1971 | Platyceras erectum Rollins et al. pp. 162 - 163 figs. f. 18g-k |
2023 | Platyceras erectum Wagner p. 656 |
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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.
†Platyceras erectum Hall 1843
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Diagnosis
No diagnoses are available