Genus: Pannoniasaurus MAKADI, CALDWELL & OSI, 2012
Etymology: From ancient Roman province, Pannonia, in the Transdanubian part of Hungary, and New Latin word from Greek, sauros, "lizard."

Species: inexpectatus MAKADI, CALDWELL & OSI, 2012
Etymology: Latin, inexpectatus, "unexpected"; referring to the unexpected occurrence of this mosasaur in freshwater environments.

Holotype: MTM 2011.43.1

Locality: Iharkut open-pit bauxite mine, Bakony Hills, Western Hungary.

Horizon: Csehbanya Formation.

Biostartigraphy:

Age: Santonian Stage, Lower Senonian Subepoch, Lower Gulf Epoch, Late Cretaceous.

Material: Isolated right quadrate.

Paratypes:

MTM V.01.115: Left quadrate.

MTM 2007.31.1: Fragmentary left quadrate.

Referred material:

MTM 2007.24.1. premaxilla fragment.

MTM 2007.25.1. premaxilla.

MTM 2007.26.1. maxilla fragment.

MTM 2007.29.1. right maxilla.

MTM 2007.33.1. maxilla fragment.

MTM 2007.22.1. left postorbitofrontal.

MTM 2007.28.1. left postorbitofrontal.

MTM 2007.37.1. left dentary.

MTM 2007.37.2. right dentary.

MTM 2007.77.1. left dentary fragment.

MTM 2011.41.1. left splenial.

MTM V.01.37. right splenial fragment.

MTM 2007.38.1. right splenial.

MTM 2007.34.1. right angular fragment.

MTM 2007.35.1. right angular.

MTM 2007.36.1. right angular.

MTM 2007.23.1. left coronoid.

MTM V.01.49. left surangular.

MTM 2007.30.1. right surangular.

MTM 2007.39.1. right articular.

MTM 2007.78.1. - MTM 2007.78.91. isolated teeth (91 pcs).

MTM Gyn/106. cervical vertebra.

MTM Gyn/108. cervical vertebra.

MTM Gyn/113. cervical vertebra.

MTM Gyn/120. cervical vertebra.

MTM Gyn/121. cervical vertebra.

MTM V.2000.19. cervical vertebra.

MTM V.01.149. cervical vertebra.

MTM 2007.49.1. cervical vertebra.

MTM 2007.52.1. cervical vertebra.

MTM 2007.57.1. cervical vertebra fragment.

MTM 2007.58.1. cervical vertebra.

MTM 2007.66.1. cervical vertebra.

MTM 2007.68.1. cervical vertebra.

MTM 2007.70.1. cervical vertebra.

MTM 2007.71.1. cervical vertebra fragment.

MTM 2007.75.1. cervical vertebra fragmen.

MTM 2007.76.1. cervical vertebra.

MTM 2007.79.1. cervical vertebra fragment.

MTM 2007.93.1. cervical vertebra.

MTM 2007.94.1. cervical vertebra fragment.

MTM Gyn/109. dorsal vertebra.

MTM Gyn/111. dorsal vertebra.

MTM Gyn/114. dorsal vertebra.

MTM Gyn/116. dorsal vertebra (pathologic).

MTM Gyn/123. dorsal vertebra.

MTM Gyn/124. dorsal vertebra.

MTM Gyn/125. dorsal vertebra.

MTM Gyn/126. dorsal vertebra.

 

Locality: Ajka Coal Mines, BakonyHills, Western, Hungary.

Horizon: Interdigitating Ajka Coal Formation.

Biostratigraphy:

Age: Santonian Stage, Lower Senonian Subepoch, Lower Gulf Epoch, Late Cretaceous.

Material:

MTM V.2000.21. dorsal vertebra.

MTM V.01.212. dorsal vertebra.

MTM V.01.222. dorsal vertebra.

MTM 2007.32.1. dorsal vertebra.

MTM 2007.44.1. dorsal vertebra.

MTM 2007.45.1. dorsal vertebra.

MTM 2007.47.1. dorsal vertebra.

MTM 2007.48.1. dorsal vertebra.

MTM 2007.50.1. dorsal vertebra fragment.

MTM 2007.51.1. dorsal vertebra fragment.

MTM 2007.53.1. dorsal vertebra.

MTM 2007.54.1. dorsal vertebra.

MTM 2007.55.1. dorsal vertebra fragment.

MTM 2007.56.1. dorsal vertebra fragment.

MTM 2007.59.1. dorsal vertebra.

MTM 2007.60.1. dorsal vertebra.

MTM 2007.61.1. dorsal vertebra.

MTM 2007.62.1. dorsal vertebra.

MTM 2007.63.1. dorsal vertebra.

MTM 2007.64.1. dorsal vertebra fragment.

MTM 2007.65.1. dorsal vertebra.

MTM 2007.67.1. dorsal vertebra.

MTM 2007.69.1. dorsal vertebra.

MTM 2007.72.1. dorsal vertebra.

MTM 2007.73.1. dorsal vertebra fragment.

MTM 2007.74.1. dorsal vertebra.

MTM 2007.80.1. dorsal vertebra.

MTM 2007.81.1. dorsal vertebra.

MTM 2007.82.1. dorsal vertebra.

MTM 2007.83.1. dorsal vertebra.

MTM 2007.84.1. dorsal vertebra fragment.

MTM 2007.106.1. dorsal vertebra.

MTM 2007.85.1. 1st sacral vertebra fragment.

MTM Gyn/122. 1st sacral vertebra.

MTM 2007.86.1. 1st sacral vertebra.

MTM Gyn/121. 2nd sacral vertebra.

MTM Gyn/104. caudal vertebra.

MTM Gyn/105. caudal vertebra.

MTM Gyn/118. caudal vertebrae.

MTM Gyn/119. caudal vertebra.

MTM V.01.173. caudal vertebra.

MTM 2007.46.1. caudal vertebra.

MTM 2007.95.1. caudal vertebra.

MTM 2007.96.1. caudal vertebra.

MTM 2007.97.1. caudal vertebra.

MTM 2007.98.1. caudal vertebra.

MTM 2007.99.1. caudal vertebra.

MTM 2007.100.1. caudal vertebra.

MTM 2007.101.1. caudal vertebra.

MTM 2007.102.1. caudal vertebra.

MTM 2007.103.1. caudal vertebra.

MTM 2007.104.1. caudal vertebra.

MTM 2007.105.1. caudal vertebra.

MTM Gyn/112. vertebrae.

MTM Gyn/115. vertebrae.

MTM Gyn/117. vertebra fragments.

MTM V.2000.17. vertebra fragment.

MTM 2007.90.1.- MTM 2007.90.11. vertebra fragments (11 pcs).

MTM 2007.107.1. vertebra fragment.

MTM 2007.87.1. rib proximal fragment.

MTM 2007.88.1. rib proximal fragment.

MTM 2007.89.1. rib proximal fragment.

MTM V.01.43. right ilium.

MTM 2007.40.1. left ilium.

MTM 2007.41.1. left ilium.

MTM 2007.43.1. ilium fragment.

MTM 2007.42.1. left humerus proximal tip.

MTM 2011.42.1. right humerus distal tip.

 

OSI, BODOR, MAKADI & RABI, 2016 (published 2015)

Locality: Ajka coal beds, Bakony Mountains, Western Hungary.

Horizon: Ajka Coal Formation.

Biostratigraphy:

Age: Santonian Stage, Middle Senonian subepoch, Lower Gulf Epoch, Middle Late Cretaceous.

Material:

MTM V.2000.21: A single dorsal vertebra.