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Palaeostrophomena kilbuchoensis
Taxonomy
Orthis kilbuchoensis was named by Davidson (1883) [Orthis vel Strophomena ? Kilbuchoensis].
It was recombined as Palaeostrophomena kilbuchoensis by Williams (1962).
It was recombined as Palaeostrophomena kilbuchoensis by Williams (1962).
Synonymy list
| Year | Name and author |
|---|---|
| 1883 | Orthis kilbuchoensis Davidson p. 188 figs. pl. xiii, figs. 1-2 |
| 1962 | Palaeostrophomena kilbuchoensis Williams pp. 157 - 158 figs. P1. XIV, figs. 22-25, 27, 28, 31 |
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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.
†Palaeostrophomena kilbuchoensis Davidson 1883
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Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| A. Williams 1962 | Elongately semi-ellipitical, rarely auriculate, biplanate Palaeostrophomena almost threefifths as long as wide, rarely with a dorsal median fold and ornamented by 8-12 costellae per millimetre antero-medianly and low, closely spaced rugae with a wave-length of about 0-25 mm. arranged concentrically to the umbo; ventral vascula media initially parallel or divergent, branching at almost one-half the length of the pedicle valve; notothyrial platform prolonged anteriorly as a pair of subparallel lateral ridges lying in front of the socket ridges as well as a pair of submedian ridges embracing a median septum. |
Measurements
No measurements are available
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| Source: o = order, c = class, p = phylum, uc = unranked clade | |||||
| References: Nesnidal et al. 2013, Aberhan et al. 2004 | |||||
Age range: base of the Aurelucian to the top of the Burrellian or 458.20000 to 452.50000 Ma
Collections (3 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Aurelucian | United Kingdom (Scotland) | Palaeostrophomena kilbuchoensis (165037) | |
| Burrellian | United Kingdom (Scotland) | Palaeostrophomena kilbuchoensis (165043 165046) |