Authors Year Title
Ehiro & Araki 1996 Early Carboniferous ammonoid Irinoceras from the Onimaru Formation in the Southern Kitakami Massif, Northeast Japan.
Journal of the Geological Society of Japan, 102 (8): 755-757, 2 figs.
Klug, Döring & Korn 2006 The Viséan sedimentary succession at the Gara el Itima (Anti-Atlas, Morocco) and its ammonoid faunas.
Fossil Record, 9 (1): 3-60, 50 fig. (Wieley-VCH) Weinheim.
Nikolaeva 2013 New Viséan and Serpukhovian ammonoids from the Verkhnyaya Kardailovka section, eastern slope of the South Urals
Paleontologicheskii zhurnal, 2013 (4): 39-50. Moscow.