Biology:Vologdinella

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Short description: Extinct genus of shelled animals

Vologdinella
Temporal range: Middle Cambrian[1]
Scientific classification edit
Domain: Eukaryota
Kingdom: Animalia
Phylum: incertae sedis
Family: Vologdinellidae
Balashov in Ruzhentsev, 1962
Genus: Vologdinella
Balashov in Ruzhentsev, 1962[2]
Species:
V. antiqua
Binomial name
Vologdinella antiqua
(Vologdin, 1931)
Synonyms

Orthoceras? antiquus Vologdin, 1931

Vologdinella is a poorly known genus of extinct animals of uncertain classification with small cylindrical shells. The animals are known from Middle Cambrian fossils from a Paleozoic limestone in the Chingiz Mountains of Kazakhstan. The genus was established by Russian paleontologist Zakhar Grigoryevich Balashov in 1962 for a single species, Vologdinella antiqua, which was originally described and illustrated as Orthoceras? antiquus by Aleksandr Grigoryevich Vologdin (ru) in 1931.

The genus was historically classified as a cephalopod, though it has since been removed from this group.[1][3] Vologdinella bears superficial resemblance to the Early Cambrian Volborthella. In the same work establishing the former genus, the two genera were classified within their own families – Vologdinellidae and Volborthellidae, respectively – within the order Volborthellida. Volborthella was later included in Agmata, an extinct phylum proposed by the paleontologist and geologist Ellis L. Yochelson (de). Vologdinella was also considered for inclusion in the Agmata, or in questionable synonymy with Volborthella, but a later study determined that the genus was not related to them.[4][5]

See also

  • Olenecoceras – another genus named by Balashov, also was formerly believed to be a cephalopod

References

  1. 1.0 1.1 Barskov, I. S.; Boiko, M. S.; Konovalova, V. A.; Leonova, T. B.; Nikolaeva, S. V. (2008). "Cephalopods in the marine ecosystems of the Paleozoic". Paleontological Journal 42 (11): 1167. doi:10.1134/S0031030108110014. 
  2. Ruzhentsev, V.E., ed (1962) (in Russian). Moscow: Academy of Sciences of the USSR. p. 72. https://www.geokniga.org/books/665. 
  3. Dzik, J. (1981). "Origin of the cephalopoda". Acta Palaeontologica Polonica 26 (2): 161–191. http://www.paleo.pan.pl/people/Dzik/Publications/Cephalopoda.pdf. 
  4. Yochelson, Ellis L. (1977). "Agmata, a Proposed Extinct Phylum of Early Cambrian Age". Journal of Paleontology 51 (3): 437–454. 
  5. Yochelson, Ellis L.; Kisselev, Gennadii N. (2003). "Early Cambrian Salterella and Volborthella (Phylum Agmata) re‐evaluated". Lethaia 36 (1): 8–20. doi:10.1080/00241160310001254. 

Wikidata ☰ Q51844501 entry