ammonites
Beshtashella tortilis Missarzhevsky and Mambetov 1981 (mollusk)

Helcionelloida

Synonym: Paraformichella orientalis Qian and Zhang 1983

Full reference: V. V. Missarzhevsky and A. M. Mambetov. 1981. Stratigrafiya i fauna pogranichnykh sloyev Kembriya i Dokembriya Malogo Karatau [Stratigraphy and fauna of the Precambrian-Cambrian boundary beds of the Malyy Karatau]. Trudy Ordena Trudovogo Krasnogo Znameni Geologicheskiy Institut Akademiya NAUK SSSR 326:1-90

Belongs to Beshtashella according to P. J. Wagner 2011

Sister taxa: none

Type specimens:

  • Beshtashella tortilis: Its type locality is Beshtash, Talas Alatau, bed 5, which is in an Atdabanian marine dolomite in the Beshtash Formation of Kyrgyzstan
  • Paraformichella orientalis:

Ecology: slow-moving low-level epifaunal detritivore