Genus: Tyrannomimus HATTORI, SHIBATA, KAWABE, IMAI, HISHI & AZUMA, 2023
Etymology: The genus name is derived from its morphological resemblance with tyrannosauroids, in which the vertical ridge on the ilium has been regarded as a synapomorphy and Greek, mimus, "mimic."

Species: fukuiensis HATTORI, SHIBATA, KAWABE, IMAI, HISHI & AZUMA, 2023
Etymology: In reference to Fukui, the prefecture where the type and referres specimens were found.

Holotype: FDPM-V-11311

Locality: Bonebed 1, Kitandi Dinosaur Quarry, northern part of katsuyama, Fukui Prefecture, Honshu Island, Japan.

Horizon: Kitandani Formation, Akaiwa Subgroup, Tetori Group.

Biostratigraphy:

Age: Aptain Stage, Middle Gallic subepoch, Later Early Cretaceous Epoch, Late Early Cretaceous.

Material: Disarticulated but associated skeleton including two parts of the braincase, several dorsal, sacral and caudal vertebrae, and fragments of ilium.

Paratype:

FDPM-V-10295: A disarticulated but associated hindlimb skeleton including a partial left femur, left metatarsal II, left and right metatarsal IV, right pedal phalanx I-1 and pedal ungual.

Referred material:

FDPM-V-8579, 8580, 8945, 11324-11329, 11332: 10 manugal phalanges including unguals.

FDPM-V-9348, 11333-11337: 6 ilia.

FDPM-V-11313: Frontal.

FDPM-V-11314-11316: 3 dorsal vertebrae.

FDPM-V-11317-11320: 4 sacral vertebrae.

FDPM-V-11321-11323: 3 humeri.

FDPM-V-11338: Femur.

FDPM-V-11339-11341: 3 tibiae.

FDPM-V-11343-11345: 3 metatarsals.

FDPM-V-11343, 11346-11348: 4 pedal phalanges.