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Prothylacynus patagonicus

Mammalia - Sparassodonta

Taxonomy
Prothylacynus patagonicus was named by Ameghino (1891). Its type specimen is 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), and it is a 3D body fossil. Its type locality is Puesto Estancia La Costa, which is in a Santacrucian terrestrial claystone/sandstone in the Santa Cruz Formation of Argentina. It is the type species of Prothylacynus.

Synonyms
  • Agustylus carnifex was named by Mercerat (1891). Its type specimen is MLP 11-38, a mandible (nearly complete mandible with most of dentition present, but broken), and it is a 3D body fossil.

    It was synonymized subjectively with Prothylacynus patagonicus by Ameghino (1894), Marshall (1978) and Marshall (1979).
  • Borhyaena excavata was named by Ameghino (1894) [Lectotype designated by Marshall (1979:22). Other syntypes are referable to _Borhyaena tuberata_ or lost.]. Its type specimen is MACN 649, a tooth (nearly complete left lower canine), and it is a 3D body fossil. Its type locality is Cerro Observatorio, which is in a Santacrucian terrestrial horizon in the Santa Cruz Formation of Argentina.

    It was synonymized subjectively with Borhyaena tuberata by Marshall (1978); it was synonymized subjectively with Prothylacynus patagonicus by Marshall (1979).
  • Prothylacynus brachyrhynchus was named by Ameghino (1894). Its type specimen is 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, ), and it is a 3D body fossil. Its type locality is Puesto Estancia La Costa, which is in a Santacrucian terrestrial claystone/sandstone in the Santa Cruz Formation of Argentina.

    It was synonymized subjectively with Prothylacynus patagonicus by Marshall (1978) and Marshall (1979).
  • Napodonictis thylacynoides was named by Ameghino (1894). Its type specimen is 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)), and it is a 3D body fossil. Its type locality is Puesto Estancia La Costa, which is in a Santacrucian terrestrial claystone/sandstone in the Santa Cruz Formation of Argentina.

    It was synonymized subjectively with Prothylacynus patagonicus by Marshall (1978) and Marshall (1979).
Synonymy list
YearName and author
1891Prothylacynus patagonicus Ameghino p. 26
1891Agustylus carnifex Mercerat p. 54
1894Borhyaena excavata Ameghino p. 121
1894Prothylacynus patagonicus Ameghino p. 124
1894Prothylacynus brachyrhynchus Ameghino p. 380
1894Napodonictis thylacynoides Ameghino p. 384
1894Prothylacinus patagonicus Lydekker p. 268
1978Prothylacynus patagonicus Marshall
1979Prothylacynus patagonicus Marshall

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RankNameAuthor
kingdomAnimalia()
—Bilateria
—EubilateriaAx 1987
—Deuterostomia
phylumChordataHaeckel 1874
subphylumVertebrata
superclassGnathostomata
—Osteichthyes()
subclassSarcopterygii()
subclassDipnotetrapodomorpha(Nelson 2006)
subclassTetrapodomorpha()
—Tetrapoda
—Reptiliomorpha
—Anthracosauria
subclassAmphibiosauriaKuhn 1967
—Cotylosauria()
—Amniota
subclassSynapsida
RankNameAuthor
—Therapsida()
infraorderCynodontia()
—Mammaliamorpha
—Mammaliaformes
classMammalia
—Cladotheria
—Zatheria
subclassTribosphenida()
subclassTheria
subclassMetatheria()
—Marsupialiformes
orderSparassodonta()
superfamilyBorhyaenoideaAmeghino 1894
—Borhyaenidae()
subfamilyProthylacyninae(Ameghino 1894)
genusProthylacynus
speciespatagonicus

If no rank is listed, the taxon is considered an unranked clade in modern classifications. Ranks may be repeated or presented in the wrong order because authors working on different parts of the classification may disagree about how to rank taxa.

†Prothylacynus patagonicus Ameghino 1891
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Invalid names: Agustylus carnifex Mercerat 1891 [synonym], Borhyaena excavata Ameghino 1894 [synonym], Napodonictis thylacynoides Ameghino 1894 [synonym], Prothylacynus brachyrhynchus Ameghino 1894 [synonym]
Diagnosis
No diagnoses are available
Measurements
No measurements are available
Composition: phosphaticsubp
Maximum body mass: 13.83 kgs
Minimum body mass: 13.83 kgs
Body mass estimate: 13.83 kg
Body mass source: publisheds
Environment: terrestrialsubo
Locomotion: actively mobilec
Life habit: scansorialsubc
Diet: carnivoresubo
Reproduction: viviparoussubc
Created: 2013-04-14 01:20:43
Modified: 2013-04-13 10:20:43
Source: s = species, subo = suborder, subc = subclass, c = class, subp = subphylum
References: Hendy et al. 2009, Clemens 1979, Carroll 1988, Goin 1997, Vizcaíno et al. 2010, Lillegraven 1979

Age range: base of the Santacrucian to the top of the Friasian or 17.50000 to 15.50000 Ma

Collections (10 total)


Time interval Ma Country or state Original ID and collection number
Santacrucian17.5 - 16.3Argentina (Santa Cruz) Prothylacynus brachyrhynchus, Napodonictis thylacynoides, Prothylacynus patagonicus (type locality: 142533) Prothylacynus patagonicus (27313 87314 176569 176575 176587 176602 206237) Prothylacynus patagonicus, Borhyaena excavata (176570)
Friasian16.3 - 15.5Chile (Aisén) Prothylacynus patagonicus (139845)