''Haasiasaurus'' is an extinct genus of early

mosasaur Mosasaurs (from Latin ''Mosa'' meaning the 'Meuse', and Greek ' meaning 'lizard') comprise a group of extinct, large marine reptiles from the Late Cretaceous. Their first fossil remains were discovered in a limestone quarry at Maastricht on th ...

, originally named "''Haasia''" by M. J. Polcyn ''et al.'', in honour of the palaeontologist Georg Haas. (The original name was a

junior homonym In biology, a homonym is a name for a taxon that is identical in spelling to another such name, that belongs to a different taxon. The rule in the International Code of Zoological Nomenclature is that the first such name to be published is the se ...

of '' Haasia'' Bollman, 1893, a genus of

millipede Millipedes are a group of arthropods that are characterised by having two pairs of jointed legs on most body segments; they are known scientifically as the class Diplopoda, the name derived from this feature. Each double-legged segment is a resu ...

s.) ''Haasiasaurus'' was the largest cenomanian mosasaur at . The genus contains the species ''Haasiasaurus gittelmani'', which was found in the

Cenomanian The Cenomanian is, in the ICS' geological timescale, the oldest or earliest age of the Late Cretaceous Epoch or the lowest stage of the Upper Cretaceous Series. An age is a unit of geochronology; it is a unit of time; the stage is a unit in the s ...

100 million years ago (

Upper Cretaceous The Late Cretaceous (100.5–66 Ma) is the younger of two epochs into which the Cretaceous Period is divided in the geologic time scale. Rock strata from this epoch form the Upper Cretaceous Series. The Cretaceous is named after ''creta'', the ...

) rocks near

Ein Yabrud Ein Yabrud ( ar, عين يبرود) is a Palestinian town in the Ramallah and al-Bireh Governorate in the central West Bank. It is located approximately 7 km northeast of the city of Ramallah and its elevation is 800 m. According to the ...

, in the

Palestinian Palestinians ( ar, الفلسطينيون, ; he, פָלַסְטִינִים, ) or Palestinian people ( ar, الشعب الفلسطيني, label=none, ), also referred to as Palestinian Arabs ( ar, الفلسطينيين العرب, label=non ...

West Bank The West Bank ( ar, الضفة الغربية, translit=aḍ-Ḍiffah al-Ġarbiyyah; he, הגדה המערבית, translit=HaGadah HaMaʽaravit, also referred to by some Israelis as ) is a landlocked territory near the coast of the Mediter ...

, approximately north of

Jerusalem Jerusalem (; he, יְרוּשָׁלַיִם ; ar, القُدس ) (combining the Biblical and common usage Arabic names); grc, Ἱερουσαλήμ/Ἰεροσόλυμα, Hierousalḗm/Hierosóluma; hy, Երուսաղեմ, Erusałēm. i ...

References

Mosasaurids Extinct animals of Asia Mosasaurs of Asia Fossil taxa described in 2003 {{paleo-lizard-stub