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Costatumulus polliciformis
Taxonomy
Cancrinella polliciformis was named by Waterhouse (1978). Its type specimen is UQF 68906, a valve (Ventral valve), and it is not a trace fossil. Its type locality is W1275, Section 13, Popagaon, Karnali, which is in a Changhsingian marine siliciclastic in the Senja Formation of Nepal.
It was recombined as Coolkilella polliciformis by Waterhouse and Chen (2007); it was recombined as Costatumulus polliciformis by Shen et al. (2003), Li et al. (2012), Shen et al. (2016) and Xu et al. (2018).
It was recombined as Coolkilella polliciformis by Waterhouse and Chen (2007); it was recombined as Costatumulus polliciformis by Shen et al. (2003), Li et al. (2012), Shen et al. (2016) and Xu et al. (2018).
Sister species lacking formal opinion data
Synonymy list
| Year | Name and author |
|---|---|
| 1978 | Cancrinella polliciformis Waterhouse p. 76 figs. Pl 11, figs 9-12 |
| 2003 | Costatumulus polliciformis Shen et al. p. 80 figs. Pl 10, figs 15-22 |
| 2007 | Coolkilella polliciformis Waterhouse and Chen p. 22 |
| 2012 | Costatumulus polliciformis Li et al. |
| 2016 | Costatumulus polliciformis Shen et al. p. 528 figs. 5S-Y |
| 2018 | Costatumulus polliciformis Xu et al. p. 150 figs. Pl 1, figs 13-16 |
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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.
†Costatumulus polliciformis Waterhouse 1978
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Diagnosis
No diagnoses are available