Hulsanpes (lat.) - a genus of dinosaurs of the dromaeosaurids family from the late Cretaceous period , found in Mongolia [1] . Includes a single species of Hulsanpes perlei [2] .
| † Hulsanpes |
Right metatarsus and bones of the holotype phalanx |
| Scientific classification |
|---|
| No rank : | Bilateral symmetrical |
| Infraclass : | Archosauromorphs |
| No rank : | Archosauriformes |
| Group : | † Maniraptoriformes |
| Subfamily : | † Halszkaraptorinae |
|
| International scientific name |
|---|
Hulsanpes Osmolska, 1982 |
| Single view |
|---|
† Hulsanpes perlei Osmolska, 1982 |
Geochronology84.9—70.6 Ma | million years | Period | Era | Aeon |
|---|
| 2,588 | Even | | | Ka | F
but
n
e
R
about
s
about
th | | 23.03 | Neogene | | 66.0 | Paleogen | | 145.5 | a piece of chalk | M
e
s
about
s
about
th | | 199.6 | Yura | | 251 | Triassic | | 299 | Permian | P
but
l
e
about
s
about
th | | 359.2 | Carbon | | 416 | Devonian | | 443.7 | Silur | | 488.3 | Ordovician | | 542 | Cambrian | | 4570 | Precambrian |
◄ Nowadays◄ Cretaceous-Paleogene extinction◄ Triassic extinction◄ Mass Permian Extinction◄ Devonian extinction◄ Ordovician-Silurian extinction◄ Cambrian explosion |
|---|
|
The fossil remains of Hulsanpes were found in 1970 by a Polish-Mongol expedition to the Gobi Desert in Hulsan , aimak Umnegov [3] .
The type species Hulsanpes perlei was named and described by H. Osmulskaya in 1982. The name of the genus means "foot from Hulsan", from the Latinized name of the location where the remains were found - Hulsan , and the Latin word pēs , foot. The species name is given in honor of the Mongolian paleontologist Altangerelyin Perle [3] .
Hulsanpes is described on the basis of the ZPAL holotype MgD-I / 173, found in the layer of the Baruun Goyot formation, which dates from the upper Campanian stage . The holotype includes fragments of the right hind limb and the lid of the skull, which belonged to a clearly immature individual. The longest of the bones found, the third tarsal , has a length of 39 millimeters [3] .
In a 1982 description, Osmulskaya placed Hulsanpes in the dromaeosaurid family [3] . Some features seemed to Osmulskaya “too primitive” to belong to the bird, such as the absence of fused metatarsal bones, with the exception of the distal region, but in part this could be due to the young age of the individual. Although its juvenile form resembles a miniature Velociraptor mongoliensis and although these features are plesiomorphic , according to the researcher, the dinosaur could belong to another group of non-avian maniraptors outside the dromaeosaurid family [4] . The phylogenetic analysis of 2004 assigned Hulsanpes to dromaeosaurids (due to a coding error of the synovator ) [5] , but Agnolin and Novas in 2013 assigned it to Averaptora incertae sedis , based on some features of the anatomy of the legs [6] .
A study conducted in 2017 by a group led by Andrei Kau assigned Hulsanpes to the basal subfamily Halszkaraptorinae [1] .
