Cephalopoda - Ceratitida - Proptychitidae

Alternative spelling: Meekoceras (Prionolobus)

Full reference: W. Waagen. 1895. Fossils from the Ceratite Formation. Salt Range Fossils, Palaeontologia Indica, Series 13 2(1):1-323

Parent taxon: Proptychitidae according to T. Brühwiler et al. 2008

Sister taxa: Arctomeekoceras, Bukkenites, Clypeoceratoides, Discoproptychites, Dunedinites, Evenites, Guodunites, Gyronites, Heibergites, Hubeitoceras, Kingites, Koninckitoides, Koninickites, Kummelia, Leyeceras, Monneticeras, Nanningites, Pachyproptychites, Pleurogyronites, Proptychites, Pseudaspidites, Pseudoproptychites, Tompoproptychites, Tulongites, Vavilovites, Wailiceras, Xiaoqiaoceras

Subtaxa: Meekoceras (Prionolobus) waageni, Prionolobus atavus, Prionolobus buchianus, Prionolobus compressus, Prionolobus hubeiensis, Prionolobus impressus, Prionolobus konincki, Prionolobus lucinus, Prionolobus ophioneus, Prionolobus ovalis, Prionolobus plicatilis, Prionolobus plicatus, Prionolobus rotundatus, Prionolobus sequens, Prionolobus undatus, Prionolobus welteri

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Type: Prionolobus atavus

Ecology: nektonic carnivore