Species: maximus KHOSATSKY & NESOV, 1979
Etymology: Latin, maximus, "greatest."
Holotype: PIN 2398/501
Locality: West Fergana, Karakalpakia, Kirghizia (Kyrgyzstan).
Horizon: Upper part of the Khodzhakul Svita.
Biostratigraphy:
Age: Turonian Stage, Uppermost Gallic Subepoch-Santonian Stage, Lower Senonian Subepoch, Lower Gulf Epoch, Early Late Cretaceous.
Material:
Referred material:
KORDIKOVA, GUNNELL, POLLY & KOVRIZHNYKH, 1996
Locality: Baybishe, Kazakhstan.
Horizon: Bostobe Formation.
Biostratigraphy:
Age: Santonian, Middle Senonian Subepoch, Lower Upper Gulf Epoch, Late Cretaceous.
Material:
Number: Not given:
Locality: Buroynak, Kazakhstan.Horizon: Bostobe Formation.
Biostratigraphy:
Age: Santonian, Middle Senonian Subepoch, Lower Upper Gulf Epoch, Late Cretaceous.
Material:
Number: Not given:
Locality: Shakh-Shakh, Kazakhstan.
Horizon: Bostobe Formation.
Biostratigraphy:
Age: Santonian, Middle Senonian Subepoch, Lower Upper Gulf Epoch, Late Cretaceous.
Material:
Number: Not given:
NESOV, 1986Locality: Dzharakhuduk (= Bissekty), Uzbekistan
Horizon:
Biostratigraphy:Age: Coniacian Stage, Lower Senonian Subepoch, Gulf Epoch, Early Cretaceous.
Material:
Number: Not given: Braincase and fragmentary shell and plastron.
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Species: oxensis NESOV & KHOSATSKY, 1979
Etymology:
Holotype: ZIN RNT S 74-1
Locality: West Fergana, Karakalpakia, Kirghizia (Kyrgyzstan).
Horizon: Upper part of the Khodzhakul Svita.
Biostratigraphy:
Age: Turonian Stage, Uppermost Gallic Subepoch-Santonian Stage Lower Senonian Subepoch, Lower Gulf Epoch, Early Late Cretaceous.
Material: