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Wilkingia andrewsi
Taxonomy
Allorisma andrewsi was named by Whitfield (1882). It is not a trace fossil.
It was recombined as Wilkingia andrewsi by Busanus and Hoare (1991), Hoare (1993) and Hoare (2007).
It was recombined as Wilkingia andrewsi by Busanus and Hoare (1991), Hoare (1993) and Hoare (2007).
Sister species lacking formal opinion data
Synonymy list
| Year | Name and author |
|---|---|
| 1882 | Allorisma andrewsi Whitfield p. 122 |
| 1991 | Wilkingia andrewsi Busanus and Hoare p. 477 figs. 6.12 – 6.14 |
| 1993 | Wilkingia andrewsi Hoare p. 394 figs. 7.19 – 7.22 |
| 2007 | Wilkingia andrewsi Hoare p. 73 figs. 6.11 - 6.16, 6.18 |
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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.
†Wilkingia andrewsi Whitfield 1882
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Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| J. W. Busanus and R. D. Hoare 1991 | Small Wilkingia with only slightly produced anterior extremity; beaks near terminal anteriorly; posterior portion of shell spatulate in form.
Wilkingia andrewsi differs from W. walkeri (Weller, 1897), W. maynardwhitei (Elias, 1957), W. snideri (Elias, 1957), and W. clavata (McChesney, 1859) by the presence of nearly terminal beaks and the broader, spatulate posterior area. | |
| R. D. Hoare 1993 | Wilkingia with tightly incurved, prosogyrate beaks located near anterior margin; umbos well above hinge-line; dorsal and ventral margins gently convex; anterior margin abruptly curved dorsally to just below small lunule; posterior margin sharply convex; surface ornamented with coarse, co-marginal undulations. |
Measurements
| part | N | mean | |||||
|---|---|---|---|---|---|---|---|
| shell height | 2 | 15.0 |
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| Source: g = genus, c = class | |||||
| References: Aberhan et al. 2004, Clapham 2015 | |||||
Age range: base of the Chesterian to the top of the Serpukhovian or 335.50000 to 323.20000 Ma
Collections (5 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Chesterian - Brigantian | USA (Ohio) | Wilkingia andrewsi (85363 85369) | |
| Chesterian | USA (West Virginia) | Wilkingia andrewsi (92956 92966) | |
| Serpukhovian | USA (West Virginia) | Wilkingia andrewsi (65682) |