Middle Jurassic ammonoid jaws (anaptychi and rhynchaptychi) from Dagestan, North Caucasus, Russia
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DOI: 10.1016/j.palaeo.2017.10.003
Abstract: Abstract The Middle and Upper Jurassic stage of evolution of the anaptychus-type ammonoid jaw apparatus is relatively poorly known due to a small number of findings and uncertainty of their taxonomic position. All previously found… read more here.
Keywords: russia; jaws; middle jurassic; jurassic ammonoid ... See more keywords