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Retispira fragilis
Taxonomy
Knightites (Retispira) fragilis was named by Yochelson (1960). It is not a trace fossil. Its type locality is PU3, Apache Canyon, Sierra Diablo, which is in a Kungurian shallow subtidal limestone in the Bone Spring Formation of Texas.
It was recombined as Retispira fragilis by Kulas and Batten (1997) and Wagner (2023).
It was recombined as Retispira fragilis by Kulas and Batten (1997) and Wagner (2023).
Synonymy list
Year | Name and author |
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1960 | Knightites (Retispira) fragilis Yochelson |
1997 | Retispira fragilis Kulas and Batten p. 38 figs. pl. 1 f. 16A-C |
2023 | Retispira fragilis Wagner p. 5898 |
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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.
†Retispira fragilis Yochelson 1960
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Diagnosis
No diagnoses are available
Measurements
part | N | mean | |||||
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shell height | 1 | 11.5 |
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Source: f = family, o = order, c = class | |||||
References: Kiessling 2004, Hendy 2009 |