Everhart M.J., Maltese A. (2010) First report of heteromorph

[mhorn]

Everhart M.J., Maltese A. (2010) First report of a heteromorph ammonite, cf. Glyptoxoceras, from the Smoky Hill Chalk (Santonian) of western Kansas, and a brief review of Niobrara cephalopods // Kansas Academy of Science, Transactions, Vol.113. no.1-2. P.64-70.

http://rmdrc.academia.edu/AnthonyMaltes ... ara_Chalk_

Описана первая находка гетероморфного аммонита в сантонской свите Smoky Hill Chalk, в Канзасе.