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Sipalocyon ✝

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Source Data

Source	ID	Link
Global Biodiversity Information Facility ID (GBIF)	4834149	https://www.gbif.org/species/4834149
PaleoBioDB ID (PBDB)	40039	https://paleobiodb.org/classic/checkTaxonInfo?taxon_no=40039

Rank

genus

Taxonomy (GBIF)

Life : Animalia : Chordata : Mammalia : Borhyaenidae : Sipalocyon

Taxonomy (PBDB)

Life : Animalia : Chordata : Mammalia : Sparassodonta : Sipalocyon

Taxonomic Status (GBIF)

accepted

Classification
(PBDB,GBIF)

Rank	Name	Author
-	Eukaryota
-	Opisthokonta	Cavalier-Smith 1987
kingdom	Animalia
-	Triploblastica	Lankester 1877
-	Nephrozoa	Jondelius et al. 2002
-	Deuterostomia	Grobben 1908
phylum	Chordata	Haeckel 1847
subphylum	Vertebrata	Lamarck 1801
superclass	Gnathostomata	Gegenbauer 1874
-	Osteichthyes
-	Sarcopterygii	Romer 1955
subclass	Dipnotetrapodomorpha
subclass	Tetrapodomorpha
-	Tetrapoda
-	Reptiliomorpha	Säve-Söderbergh 1934
-	Anthracosauria	Säve-Söderbergh 1934
-	Batrachosauria
-	Cotylosauria
-	Amniota	Haeckel 1866
-	Synapsida	Osborn 1903
-	Therapsida
infraorder	Cynodontia
-	Epicynodontia	Hopson and Kitching 2001
infraorder	Eucynodontia	Kemp 1982
-	Probainognathia	Hopson 1990
-	Mammaliamorpha	Rowe 1988
-	Mammaliaformes	Rowe 1988
class	Mammalia	Linnaeus 1758
-	Theriamorpha
-	Theriiformes
-	Trechnotheria	McKenna 1975
-	Cladotheria	McKenna 1975
-	Boreosphenida
subclass	Theria	Parker and Haswell 1897
subclass	Metatheria
order	Sparassodonta
subfamily	Hathlyacininae
genus	Sipalocyon	Ameghino 1887

Scientific Name

Sipalocyon Ameghino, 1887

Name Published In

Enum. Mam. fós. Patag.

Opinions (PBDB)

Name	Rank	Opinion	Evidence	Author
Sipalocyon	genus	belongs to Creodonta	stated with evidence	Ameghino, 1891
Sipalocyon	genus	belongs to Amphiproviverridae	stated without evidence	Ameghino, 1894
Sipalocyon	genus	belongs to Hathliacyninae	stated with evidence	Marshall, 1978
Sipalocyon	genus	belongs to Borhyaenidae	implied	McKenna and Bell, 1997
Sipalocyon	genus	belongs to Hathliacynidae	stated with evidence	de Muizon, 1999
Sipalocyon	genus	belongs to Hathliacynidae	stated without evidence	Goin et al., 2007

Status (PBDB)

extinct

Taxon Size (PBDB)

First Recorded Appearance

55.8 - 48.6 Ma
Eocene

Last Recorded Appearance

16.0 - 11.6 Ma
Miocene

Environment

terrestrial (based on Sparassodonta)

Motility

actively mobile (based on Osteichthyes)

Diet

carnivore (based on Sparassodonta)

Reproduction

viviparous (based on Theria)

Taphonomy

phosphatic (based on Vertebrata)

Primary Reference (PBDB)

M. C. McKenna and S. K. Bell. 1997. Classification of Mammals Above the Species Level

Fossil Distribution

Subtaxa

Name	Status	Common Name(s)	Fossil Occurrences	Oldest	Youngest
Amphiproviverra manzaniana ✝ species	accepted (GBIF) listed (PBDB)
Amphiproviverra obtusa ✝ species	listed (PBDB)
Cladosictis externa species	accepted (GBIF)	No associated record in PBDB
Protoproviverra obtusa species	accepted (GBIF)	No associated record in PBDB
Protoproviverra obusta species	accepted (GBIF)	No associated record in PBDB
Protoproviverra palaeonictides ✝ species	listed (PBDB)		1	55.8 Ma Eocene	55.8 Ma Eocene
Proviverra palaeonictides species	accepted (GBIF)	No associated record in PBDB
Sipalocyon externus ✝ species	listed (PBDB)		1	21.0 Ma Miocene	21.0 Ma Miocene
Sipalocyon gracilis ✝ species	accepted (GBIF) listed (PBDB)		28	23.0 Ma Miocene	16.0 Ma Miocene
Sipalocyon obusta ✝ species	listed (PBDB)		1	17.5 Ma Miocene	17.5 Ma Miocene

Synonymy List

Year	Name and Author
1887	Sipalocyon Ameghino
1891	Protoproviverra Ameghino p. 26
1891	Sipalocyon Ameghino p. 29
1891	Amphiproviverra Ameghino p. 397n
1891	Thylacodictis Mercerat p. 54
1894	Amphiproviverra Ameghino p. 133
1894	Sipalocyon Ameghino p. 137
1894	Amphiproviverra Lydekker p. 268

Year	Name and Author
1935	Amphithereutes Ameghino p. 108
1978	Sipalocyon Marshall
1981	Sipalocyon Marshall
1994	Sipalocyon de Muizon
1997	Sipalocyon McKenna and Bell
1999	Sipalocyon de Muizon p. 507
2007	Sipalocyon Goin et al.

References

McKenna M. C., Bell S. K. (1997) , Classification of Mammals Above the Species Level, 1-640

Ameghino F. 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

Ameghino F. Enumeration synoptique des especes de mammifères fossiles des formations éocènes de Patagonie, Boletin de la Academia Nacional de Ciencias en Cordoba (Republica Argentina) 13, 259-452

Lydekker R. , A Hand-Book to the Marsupialia and Monotremata, 1-302

Marshall L. G. (1978) Evolution of the Borhyaenidae, extinct South American predaceous marsupials, University of California Publications in Geological Sciences 117, 1-89

Marshall L. G. (1981) Review of the Hathlyacyninae, an extinct subfamily of South American "dog-like" marsupials, Fieldiana Geology 7, 1-120 doi:10.5962/bhl.title.3520

de Muizon C. J. (1994) A new carnivorous marsupial from the Palaeocene of Bolivia and the problem of marsupial monophyly, Nature 370, 208-211

de Muizon C. J. (1999) Marsupial skulls from the Deseadan (late Oligocene) of Bolivia and phylogenetic analysis of the Borhyaenoidea (Marsupialia, Mammalia), Geobios 32 3, 483-509

Goin F., Abello A., et al (2007) Los Metatheria sudamericanos de comienzos del Neógeno (Mioceno Temprano, Edad-mamífero Colhuehuapense). Parte I: Introducción, Didelphimorphia y Sparassodonta, Ameghiniana 44 1, 29-71

Nomenclator Zoologicus. A list of the names of genera and subgenera in zoology from the tenth edition of Linnaeus, 1758 to the end of 2004. Digitised by uBio from vols. 1-9 of Neave (ed.), 1939-1996 plus supplementary digital-only volume. http://ubio.org/NomenclatorZoologicus (as at 2006). - via The Interim Register of Marine and Nonmarine Genera

SN2000/McKenna & Bell, 1997 - via The Interim Register of Marine and Nonmarine Genera

SN2000: Brands, S. J. (compiler) 1989-2005. Systema Naturae 2000. Amsterdam, The Netherlands (2006 version). Available online at http://sn2000.taxonomy.nl/. - via The Interim Register of Marine and Nonmarine Genera

as per family - via The Interim Register of Marine and Nonmarine Genera

Enum. Mam. fós. Patag. - via The Interim Register of Marine and Nonmarine Genera

Data courtesy of: PBDB: The Paleobiology Database, Creative Commons CC-BY licenced. , GBIF: the Global Biodiversity Information Facility, various licences, iDigBio, various licences, and EOL: The Encyclopedia of Life (Open Data Public Domain). Because fossils are made of minerals too!

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