Paralitherizinosaurus is an extinct genus of therizinosaurid dinosaur from the Late Cretaceous Osoushinai Formation of Hokkaido, Japan.

[1] The Paralitherizinosaurus holotype specimen, NMV-52, was discovered in September 2000 in layers of the Osoushinai Formation (Yezo Group) in Nakagawa, Hokkaido, Japan, which dates to the early Campanian age of the late Cretaceous period.

[1][2] Some of these remains were first described by Murakami et al. in 2008 as belonging to an indeterminate genus of maniraptoran theropod, possibly with therizinosauroid affinities.

[2] In 2022, Kobayashi et al. described Paralitherizinosaurus as a new genus and species of therizinosaurid making it the third therizinosaur found in Japan.

[1] In their phylogenetic analyses, Kobayashi et al. (2022) recovered Paralitherizinosaurus as a member of a clade containing Therizinosaurus, Suzhousaurus, and an unnamed therizinosaurid from the Bissekty Formation of Uzbekistan.