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Modestospira lamellosa
Taxonomy
Bucaniella lamellosa was named by Koken (1897). It is a 3D body fossil. Its type locality is Nasser Garten near Königsberg (= Kaliningrad), which is in a Kunda carbonate limestone in the Kielno Variegated Limestone Formation of the Russian Federation.
It was recombined as Modestospira lamellosa by Yochelson (1964).
It was recombined as Modestospira lamellosa by Yochelson (1964).
Synonymy list
| Year | Name and author |
|---|---|
| 1897 | Bucaniella lamellosa Koken p. 128 |
| 1925 | Bucaniella lamellosa Koken and Perner p. 23 figs. pl. 18 f. 7-10 |
| 1964 | Modestospira lamellosa Yochelson p. 895 |
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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.
†Modestospira lamellosa Koken 1897
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Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| E. L. Yochelson 1964 | Bucaniella (sic) lamellosa Koken, 1897, is illustrated as possessing a U-shaped sinus (Koken, 1925, pl. 18, fig. 7). Assignment of this species to Modestospira is tentative; one of the other illustrations of the type lot on the same plate suggests that this species may have a depressed selenizone. If the specimen has only the inner shell layer preserved, this apparent conflict might be explained, because partly exfoliated specimens of M. poulseni also show a depressed pseudoselenizone. While this name may prove to be an earlier synonym of M. poulseni, the illustrations of M. lamellosa suggest that it had narrower umbilici and a relatively wider dorsum than M. poulseni. |