Superregnum: Eukaryota
Regnum: Animalia
Subregnum: Eumetazoa
Cladus: Bilateria
Cladus: Nephrozoa
Superphylum: Deuterostomia
Phylum: Chordata
Cladus: Craniata
Subphylum: Vertebrata
Infraphylum: Gnathostomata
Superclassis: Tetrapoda
Cladus: Reptiliomorpha
Cladus: Amniota
Cladus: Synapsida
Cladus: Eupelycosauria
Cladus: Sphenacodontia
Cladus: Sphenacodontoidea
Ordo: Therapsida
Cladus: Theriodontia
Subordo: Cynodontia
Cladus: Mammaliaformes
Classis: Mammalia
Subclassis: Trechnotheria
Infraclassis: Zatheria
Supercohort: Theria
Cohort: Metatheria
Cohort: Marsupialia
Ordo: Dasyuromorphia
Familia: †Thylacinidae
Genus: Mutpuracinus
Species: Mutpuracinus archiboldi
Name
Mutpuracinus archiboldi Murray & Megirian, 2000
Type locality: Bullock Creek, Australia
Fossil: Middle Miocene
Mutpuracinus archibaldi is an extinct carnivorous, quadrupedal marsupial that lived during the middle Miocene and is the smallest known thylacinid at approximately 1.1 kilograms, the size of a quoll, though, more closely related to the recently extinct thylacine.
M. archibaldi would have resembled a dog with a long snout. Its molar teeth were specialized for carnivory, the cups and crest were reduced or elongated to give the molars a cutting blade.
Fossils of M. archibaldi have been discovered in deposits at Bullock Creek (Northern Territory) in the Northern Territory of Australia, and in the same deposits as Nimbacinus richi. It is named in honor of Ian Archibald for his contributions to the northern territory. Fossil specimens of M. archibaldi include a premaxilla with alveoli for four incisors, and the holotype, a left maxilla. thylacinid skull fossils are exceedingly rare and M. archiboldi is one of only three species known from fossil crania.
Taxonomy
The description of a new species and genus was published in 2000, the results of examination of fossil material discovered at the "Blast Site", associated with the Bullock Creek fossil beds in the Northern Territory. The describing authors, Peter F. Murray and Dirk Megirian, assigned the name Mutpuracinus to the new thylacinid genus, combining the Ancient Greek kynos, alluding to the canid family of dogs and wolves, and the word mutpura in reference to an Indigenous Australian people associated with the district at Camfield.[1]
References
Murray, P.; Megirian, D. (2000). "Two New Genera and Three New Species of Thylacinidae (Marsupialia) from the Miocene of the Northern Territory, Australia". The Beagle : occasional papers of the Northern Territory Museum of Arts and Sciences. 16: 145–162.
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