Koleken (meaning "coming from clay and water") is a genus of carnotaurin abelisaurid from the Maastrichtian La Colonia Formation in the Chubut Province of Argentina. The genus contains a single species, Koleken inakayali, known from one immature specimen about long and six years old in minimum age.
Koleken (meaning "coming from clay and water") is a genus of carnotaurin abelisaurid from the Maastrichtian La Colonia Formation in the Chubut Province of Argentina. The genus contains a single species, Koleken inakayali, known from one immature specimen about long and six years old in minimum age.
== Discovery and naming == Koleken is known from only the holotype MPEF-PV 10826 which was initially found and reported in 2015, but was not described as K. inakayali until 2024. The holotype consists of "closely associated (but disarticulated) remains of the skull and atlas, as well as the articulated postcranial skeleton composed of the posteriormost eight dorsal vertebrae, a complete sacrum, eight caudal vertebrae, an almost complete pelvis and hind limbs". It differs from the larger Carnotaurus in anatomical characteristics found in the skull, vertebrae, and leg bones. The specimen is likewise believed to represent a sub-adult based on a lack of fusion in some of the bones.
Discovered by embedding cosine similarity (sentence-transformers MiniLM, 384-dim).