Additional remains found in the area suggest the presence of other nothrotheriines along with a genus of megatheriid sloth, Anisodontherium.

Chasicobradys would have lived alongside various genera of Cingulata, including the last horned armadillo Epipeltephilus, the Dasypodidae Vetelia and Chasicotatus, the Euphractinae Proeuphractus, the Glyptodontinae Kelenkura and the pampathere Kraglievichia.

Other xenarthrans includes several genera of ground sloths, such as the Mylodontidae Octomylodon, the Megalonychidae Protomegalonyx, the fellow Nothrotheriidae Xyophorus, and the Megatheriidae Anisodontherium.

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.

Meridiungulates were also present in the formation, with Litopterna genera such as the Macraucheniidae Cullinia and Paranauchenia and the Proterotheriidae Neobrachytherium, while notoungulates were represented by genera such as the large-sized late surviving Homalodotheriidae Chasicotherium, the Toxodontidae Paratrigodon, the Interatheriidae Protypotherium, the Mesotheriidae Typotheriopsis, and the Hegetotheriidae Paedotherium, Pseudohegetotherium and Hemihegetotherium.