Mesohedenstroemia

Mesohedenstroemia is a genus of ammonites. It was described by Chao in 1959, who described three species; M. kwangsiana (the type species), M. inflata Chao, 1959, and M. planata, from the Triassic of what is now China. A new species, M. olgae, was described from the Olenekian of Russia by Yuri D. Zakharov and Nasrin Mousavi Abnavi in 2012, and was named in honour of Olga P. Smyshyaeva.^[2]

Mesohedenstroemia Temporal range: 252.3–247.2 Ma[1] PreꞒ Ꞓ O S D C P T J K Pg N
Scientific classification
Kingdom:	Animalia
Phylum:	Mollusca
Class:	Cephalopoda
Subclass:	†Ammonoidea
Order:	†Ceratitida
Family:	†Hedenstroemiidae
Genus:	†Mesohedenstroemia Chao, 1959
Species[1]
M. kwangsiana Chao, 1959 M. inflata Chao, 1959 M. planata Chao 1959 M. bosphorensis (Zakharov, 1968) M. olgae Zakharov & Abnavi, 2012

Distribution

China and Russia^[1]