Halszkaraptorinae is an extinct basal ("primitive") subfamily of Dromaeosauridae (or possibly Unenlagiidae) that includes the enigmatic genera Halszkaraptor, Natovenator, Mahakala, and Hulsanpes.

Later in 1982, they were described by Polish palaeontologist Halszka Osmólska and used as the holotype for the new genus and species Hulsanpes perlei, honoring the Mongolian paleontologist Altangerel Perle.

[3] In 2015 the Royal Belgian Institute of Natural Sciences received a small theropod fossil specimen, hailing from England and Japanese private collections.

[5] Natovenator Zhenyuanlong Bambiraptor In 2017 a comparison of the fossils of Halszkaraptor with the bones of extant crocodilians and aquatic birds revealed evidence of a semiaquatic lifestyle.

[4] A 2024 study by Tse, Miller, and Pittman, focusing on the skull morphology and bite forces of various dromaeosaurids discovered that Halszkaraptor had a rapid bite unsuited to piscivorous feeding as previously hypothesized based on its skull morphology, and instead suggest it was an insectivore that hunted small invertebrates possibly in low-light conditions (at night or in murky water), since it likely had exceptional low-light vision among dromaeosaurids based on its relatively large orbit size.