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Yakovlevia mammatiformis
Taxonomy
Productus mammatiformis was named by Fredericks (1926).
It was recombined as Muirwoodia mammatiformis by Kashirtsev (1959); it was recombined as Yakovlevia mammatiformis by Lee and Gu (1980), Pavlova et al. (1991), Kalashnikov (1993), Tazawa (1999), Tazawa (2008), Tazawa (2011) and Tazawa et al. (2015).
It was recombined as Muirwoodia mammatiformis by Kashirtsev (1959); it was recombined as Yakovlevia mammatiformis by Lee and Gu (1980), Pavlova et al. (1991), Kalashnikov (1993), Tazawa (1999), Tazawa (2008), Tazawa (2011) and Tazawa et al. (2015).
Synonymy list
| Year | Name and author |
|---|---|
| 1926 | Productus mammatiformis Fredericks |
| 1959 | Muirwoodia mammatiformis Kashirtsev p. 46 figs. Pl 19, fig 2 |
| 1980 | Yakovlevia mammatiformis Lee and Gu p. 383 figs. Pl 172, fig 3; pl 165, fig 25 |
| 1991 | Yakovlevia mammatiformis Pavlova et al. p. 107 figs. Pl 26, figs 1-3 |
| 1993 | Yakovlevia mammatiformis Kalashnikov p. 61 figs. Pl 16, figs 1-4 |
| 1999 | Yakovlevia mammatiformis Tazawa p. 92 fig. 3.8 |
| 2008 | Yakovlevia mammatiformis Tazawa p. 29 fig. 4.13 |
| 2011 | Yakovlevia mammatiformis Tazawa p. 175 fig. 4.8 |
| 2015 | Yakovlevia mammatiformis Tazawa et al. p. 43 figs. 6.4-6.6 |
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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.
†Yakovlevia mammatiformis Fredericks 1926
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Diagnosis
No diagnoses are available