PBDB Taxon

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Morphology	Ecology and taphonomy	External Literature Search	Age range and collections

Mahakala omnogovae

Reptilia - Dromaeosauridae

Taxonomy

Mahakala omnogovae was named by Turner et al. (2007). Its type specimen is IGM 100/1033, a partial skeleton, and it is not a trace fossil. Its type locality is Tögrögiin Shiree [AMNH], which is in a Campanian eolian sandstone in the Djadokhta Formation of Mongolia.

Year	Name and author
2007	Mahakala omnogovae Turner et al. p. 1378 figs. 1-2
2009	Mahakala omnogovae Longrich and Currie p. supplementary
2009	Mahakala omnogovae Zanno et al. p. S15
2010	Mahakala omnogovae Longrich et al. p. 955
2011	Mahakala omnogovae Goianechini and Apesteguía p. 175
2011	Mahakala omnogovae Turner et al. p. 4
2012	Mahakala omnogovae Hone et al. p. 27
2014	Mahakala omnogovae Delcourt and Grillo p. 312
2017	Mahakala omnogovae Cau et al.
2020	Mahakala omnogovae Czepiński p. 492
2023	Mahakala omnogovae Kubo et al. p. 7

Reference	Diagnosis
A. H. Turner et al. 2011	A small maniraptoran diagnosed by the following unique combination of characters: a ledgelike depression at the confluence of metotic strut and posterior tympanic recess on the anterior face of the paroccipital process; a posteriorly tapering scapula; a short forelimb (humerus 50% femur length); a strongly compressed and anteroposteriorly broad ulna tapering posteriorly to a narrow edge; elongate lateral crest on the posterodistal femur; anterior caudal vertebrae with subhorizontal, laterally directed prezygapophyses; a prominent supratrochanteric process; and the absence of a cuppedicus fossa.
A. Cau et al. 2017	Halszkaraptorine dromaeosaurid with unique combination of: a ledgelike depression at the confluence of metotic strut and posterior tympanic recess on the anterior face of the paroccipital process (provisional autapomorphy, unknown in other Halszkaraptorinae); pendant paroccipital processes (unknown in Hu. perlei); laterally oriented anteriormost caudal ribs (see Halszkaraptor diagnosis); a short forelimb (humerus not longer than 50% femur, relatively longer in Ha. escuilliei, unknown in Hu. perlei); the absence of a cuppedicus fossa (present in Ha. escuilliei, unknown in Hu. perlei); distal ends of both metatarsal I and II diverge medially (unknown in Hu. perlei); metatarsal III longer than femur (unknown in Hu. perlei); distal end of metatarsal III with symmetrical constriction proximal to trochlea (constriction absent in Ha. escuilliei; constriction asymmetrical, more developed medially in Hu. perlei).