Mammalia - Microbiotheria - Microbiotheriidae

Synonyms: Hadrorhynchus conspicuus Ameghino 1891, Stylognathus diprotodontoides Ameghino 1891

Belongs to Microbiotherium according to L. Marshall 1982

See also Abello et al. 2012, Ameghino 1891 and Ameghino 1894

Sister taxa: Microbiotherium acicula, Microbiotherium gallegosense, Microbiotherium praecursor, Microbiotherium tehuelchum

Type specimens:

• Microbiotherium patagonicum: MLP 11-30, a mandible (partial right mandibular ramus with alveoli of p1-2, part of anterior root of p3, and with m1-4 present). Its type locality is Barrancas del Río Santa Cruz, which is in a Santacrucian terrestrial horizon in the Santa Cruz Formation of Argentina.
• Hadrorhynchus conspicuus: MACN 5740, a mandible (fragment of a left mandibular ramus with alveoli of i1-p1, and with p2-m1 complete). Its type locality is Cerro Observatorio, which is in a Santacrucian terrestrial horizon in the Santa Cruz Formation of Argentina.
• Stylognathus diprotodontoides: MACN 5728, a mandible (left mandibular ramus with aveoli of i1-m1, and m2-4 present). Its type locality is Cerro Observatorio, which is in a Santacrucian terrestrial horizon in the Santa Cruz Formation of Argentina.

Ecology: scansorial insectivore

Distribution:

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Specimen images are retrieved through the ePANDDA API.