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Kirengella rectilateralis
Taxonomy
Tryblidium rectilaterale was named by Berkey (1898). It is a 3D body fossil. Its type locality is 1 kilometer south of Taylors Falls, half kilometer north of Folsom Island, which is in a Steptoean coastal sandstone in the Franconia Formation of Minnesota.
It was recombined as Kirengella rectilateralis by Yochelson and Webers (2006).
It was recombined as Kirengella rectilateralis by Yochelson and Webers (2006).
Synonymy list
| Year | Name and author |
|---|---|
| 1898 | Tryblidium rectilaterale Berkey p. 280 figs. pl. 20 f. 29, 30 pl. 21 f. 17 |
| 2006 | Kirengella rectilateralis Yochelson and Webers pp. 42 - 43 fig. 7 |
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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.
†Kirengella rectilateralis Berkey 1898
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Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| E. L. Yochelson and G. F. Webers 2006 | A high, conical shell with one side essentially vertical and the other inclined about 20° from vertical; the shorter surface of the shell is seemingly slightly compressed and the longer surface of the shell is seemingly moderately well rounded; growth lines are seemingly simple and closely spaced. |