[2] In 2011, new glyptodontid remains from the Loma de Las Tapias Formation, known as PVSJ-366, and including an almost complete crania and a fragment of the left femur, were tentatively assignated by Victor H. Contreras and Juan A. Baraldo to Palaehoplophorus and Hoplophractus, the latter being now considered to be a junior synonym of Eosclerocalyptus.

[3] In 2016–2017, Cristian G. Oliva examined a number of fossil fragments from the Arroyo Chasicó Formation and suggested the existence of a still undescribed new species of glyptodont from the locality.

Finally, in 2022, a new study conducted by Daniel Barasoain et al contested the referral of the Arroyo Chasicó material to Eosclerocalyptus, and named the new genus and species Kelenkura castroi, with PV-UNS-260 as holotype.

While being originally recovered as a specimen of Eosclerocalyptus tapinocephalus, Kelenkura was erected as an entirely new genus and species on the basis of morphological differences and an earlier age.

Kelenkura was the only glyptodont from the "Austral lineage" extant in the Chasicoan period,[1] but it lived alongside various genera of Cingulata, including the last horned armadillo Epipeltephilus, the Dasypodidae Vetelia and Chasicotatus, the Euphractinae Proeuphractus, and the pampathere Kraglievichia.

Several genera of rodents were recovered from the formation, such as the earliest genus of tuco-tucos, maras and capybaras such as Cardiomys, Procardiomys and Cardiatherium, Octodontidae such as Chasicomys and Chasichimys, the Echimyidae Pattersomys, the plain viscacha Lagostomus telenkechanum and its relative Prolagostomus, and large-sized Dinomyidae like Carlesia.