Mammalia - Sparassodonta - Borhyaenidae

Alternative combination: Prothylacinus patagonicus

Synonyms: Agustylus carnifex Mercerat 1891, Borhyaena excavata Ameghino 1894, Dynamictis excavata Ameghino 1894, Napodonictis thylacynoides Ameghino 1894, Prothylacynus brachyrhynchus Ameghino 1894

Full reference: F. Ameghino. 1891. Nuevos restos de mamíferos fósiles descubiertos por Carlos Ameghino en el Eoceno inferior de la Patagonia austral. – Especies nuevas, adiciones y correcciones [New remains of fossil mammals discovered by Carlos Ameghino in the lower Eocene of southern Patagonia. – New species, additions, and corrections]. Revista Argentina de Historia Natural 1:289-328

Belongs to Prothylacynus according to L. G. Marshall 1979

See also Ameghino 1891, Ameghino 1894, Lydekker 1894 and Marshall 1978

Sister taxa: none

Type specimens:

• Prothylacynus patagonicus: MACN 706–720, a partial skeleton (left and portion of right dentary with left i1-m4 and right i1-c (706); left maxillary with M1-4 (707); postcrania (708–720); all associated). Its type locality is Puesto Estancia La Costa, which is in a Santacrucian terrestrial claystone/sandstone in the Santa Cruz Formation of Argentina.
• Agustylus carnifex: MLP 11-38, a mandible (nearly complete mandible with most of dentition present, but broken).
• Borhyaena excavata: MACN 649, a tooth (nearly complete left lower canine). Its type locality is Cerro Observatorio, which is in a Santacrucian terrestrial horizon in the Santa Cruz Formation of Argentina.
• Napodonictis thylacynoides: MACN 5931–5937, a partial skeleton (complete skull with dentition (5931); greater part of broken right mandibular ramus (5932); associated and fragmentary skeleton (5933–5937)). Its type locality is Puesto Estancia La Costa, which is in a Santacrucian terrestrial claystone/sandstone in the Santa Cruz Formation of Argentina.
• Prothylacynus brachyrhynchus: MACN 5926, a mandible (portion of mandible with left and right rami fused, with left c, alveoli of p1, p2 complete, alveoli of p3, m1-4 complete; right p2 complete, alveoli of p3-m1, ). Its type locality is Puesto Estancia La Costa, which is in a Santacrucian terrestrial claystone/sandstone in the Santa Cruz Formation of Argentina.

Ecology: scansorial carnivore

Distribution:

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Specimen images are retrieved through the ePANDDA API.