| Basic info | Taxonomic history | Classification | Included Taxa |
| Morphology | Ecology and taphonomy | External Literature Search | Age range and collections |
Purella
Taxonomy
Purella was named by Missarzhevsky (1974) [Sepkoski's age data: V N-Da-u Cm Atda-u Sepkoski's reference number: 885,1006,1030]. It is not extant. Its type is Purella cristata. It is the type genus of Purellidae.
It was assigned to Helcionellidae by Missarzhevsky (1989); to Purellidae by Vassiljeva (1990); to Purellinae by Feng et al. (2001); to Mollusca by Sepkoski (2002); and to Maikhanellidae by Ponder et al. (2007), Parkhaev and Demidenko (2010), Devaere et al. (2013), Kouchinsky et al. (2017).
It was assigned to Helcionellidae by Missarzhevsky (1989); to Purellidae by Vassiljeva (1990); to Purellinae by Feng et al. (2001); to Mollusca by Sepkoski (2002); and to Maikhanellidae by Ponder et al. (2007), Parkhaev and Demidenko (2010), Devaere et al. (2013), Kouchinsky et al. (2017).
Species
P. arcana, P. atypica, P. cristata (syn. P. dzhandica) (type species), P. gracilis, P. insueta, P. layracensis, P. squamulosa
Species lacking formal opinion data
Synonyms
|
Synonymy list
| Year | Name and author |
|---|---|
| 1974 | Purella Missarzhevsky |
| 1980 | Rozanoviella Missarzhevsky p. 25 |
| 1989 | Purella Missarzhevsky p. 174 |
| 1990 | Purella Vassiljeva |
| 1990 | Rozanoviella Vassiljeva |
| 2001 | Purella Feng et al. |
| 2002 | Rozanoviella Parkhaev p. 35 |
| 2002 | Purella Sepkoski |
| 2002 | Rozanoviella Sepkoski |
| 2007 | Purella Ponder et al. p. 137 |
| 2010 | Purella Parkhaev and Demidenko p. 994 |
| 2013 | Purella Devaere et al. p. 31 |
| 2017 | Purella Kouchinsky et al. p. 364 |
Is something missing? Join the Paleobiology Database and enter the data
|
|
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.
G. †Purella Missarzhevsky 1974
show all | hide all
†Purella arcana Val'kov 1987
†Purella atypica Missarzhevsky 1980
†Purella cristata Missarzhevsky 1974
hide
Invalid names: Purella dzhandica Pelman et al. 1990 [synonym]
†Purella gracilis Voronin et al. 1982
†Purella insueta Missarzhevsky and Mambetov 1981
†Purella layracensis Kerber 1988
†Purella squamulosa Qian and Bengtson 1989
Invalid names: Rozanoviella Missarzhevsky 1980 [synonym]
Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| P. Y. Parkhaev and Y. Demidenko 2010 | "Shell cap-shaped, low conical, elongated. Apex displaced anteriorly, sometimes up to level of anterior apertural margin. Posterior field convex, anterior field slightly concave below aperture, straight in other part. Lateral fields straight or slightly concave. Aperture egg-shaped or pyriform, with wide posterior and narrow anterior parts. Posterior shell field bears prominent posterior mid-dorsal buttress, running from apex to posterior apertural margin. Anterior buttress faint or absent. External shell ornamentation presented by elongated scales aligned in comarginal rows. Internal mold also bears mid-dorsal buttresses." | |
| L. Devaere et al. 2013 | Shell with slightly elongate aperture and height somewhat shorter than or equal to length of aperture; apex shifted to the proximal margin; shell profile of proximal side slightly concave; distal side convex with slight ridge along sagittal line. Surface of the shell corresponding to comarginal elongated scales (emended from Qian and Bengtson, 1989). |
Measurements
No measurements are available
|
|
||||
|
|||||
|
|
||||
| Source: g = genus | |||||
| Reference: Hendy 2009 | |||||
Age range: base of the Meishucunian to the top of the Botomian or 530.70000 to 512.10000 Ma
Collections (41 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Manykaian | Russian Federation (Siberia) | P. cristata (50316) | |
| Nemakit-Daldynian | Iran | P. sp. (10527 10528 10529) | |
| Nemakit-Daldynian | Mongolia (Khasagt-Khairkhan) | Rozanoviella atypica (10111) | |
| Nemakit-Daldynian | Russian Federation (Sakha) | P. cristata (99461) | |
| Nemakit-Daldynian | China (Shaanxi) | P. squamulosa (86566) | |
| Nemakit-Daldynian | Russian Federation (Khabarovsk) | P. cristata (99465) | |
| Nemakit-Daldynian | Russian Federation (Krasnoyarsk) | P. cristata (99473) | |
| Nemakit-Daldynian | Mongolia (Govi-Altay) | P. panda, P. sp. (99556) P. panda, P. sp., P. cristata (99557) P. sp. (99555) | |
| Nemakit-Daldynian | Russian Federation (Khabarovsk Krai) | P. cristata, Tannuella gracilis (50418) P. sp., P. cristata (50367) | |
| Nemakit-Daldynian | Russian Federation (Siberia) | P. cristata (50317 50427) P. cristatus (50419) P. sp. (50340) P. sp., P. cristata (50366) | |
| Nemakit-Daldynian | China (Sichuan) | P. squamulosa (86618) | |
| Meishucunian - Nemakit-Daldynian | China (Yunnan) | P. squamulosa (49681) | |
| Meishucunian | China (Yunnan) | P. squamulosa (201517 201518 201519) | |
| Meishucunian - Tommotian | China (Yunnan) | P. squamulosa (50504) | |
| Stage 2 | France (Herault) | P. gracilis, P. layracensis (239438) | |
| Tommotian | Russian Federation (Siberia) | P. cristata (50368 50428) | |
| Tommotian | Russian Federation (Sakha) | P. cristata (96463 233167) | |
| Tommotian | Russian Federation (Khabarovsk Krai) | P. cristata (50420) | |
| Tommotian | Russian Federation (Yakutiya) | P. cristata (96456) | |
| Tommotian | China (Hubei) | P. lepidites (155444) | |
| Tommotian | Russian Federation (Krasnoyarsk Krai) | P. cristata (96396 232905 232906 233166) | |
| Tommotian | Russian Federation (Krasnoyarsk) | P. cristata (99484) | |
| Tommotian | China (Yunnan) | P. arcana (171902) | |
| Atdabanian | Kazakhstan | P. insueta (99357) | |
| Botomian | Kazakhstan | P. insueta (99362) |