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Pyrocyon

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Pyrocyon Temporal range: 55.8–50.3 Ma PreꞒ Ꞓ O S D C P T J K Pg N Wasatchian

parts of upper and lower jaws of Pyrocyon strenuus
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Chordata
Class:	Mammalia
Order:	†Hyaenodonta
Genus:	†Pyrocyon Gingerich & Deustch, 1989
Type species
†Pyrocyon dioctetus Gingerich & Deustch, 1989
Species
†P. dioctetus (Gingerich & Deustch, 1989)^[1] †P. strenuus (Cope, 1875)^[2]
Synonyms
synonyms of genus: Pirocyon (Lavrov, 1999)^[3] synonyms of species: P. strenuus: Prototomus strenuus (Cope, 1875) Stypolophus aculeatus (Cope, 1881) Stypolophus hians (Cope, 1877) Stypolophus strenuus (Cope, 1880) Stypolophus whiteae (Cope, 1882)^[4] Stypolophus whitiae (Cope, 1882) Sinopa aculeata (Matthew, 1899) Sinopa hians (Matthew, 1901) Sinopa strenua (Matthew, 1899) Sinopa strenuus (Matthew, 1901) Sinopa whitiae (Cope, 1882) Tritemnodon hians (Van Valen, 1965)^[5] Tritemnodon strenua (Van Valen, 1965) Tritemnodon strenuus (Van Valen, 1965) Tritemnodon whitiae (Matthew, 1906)

Pyrocyon ("fire dog") is an extinct genus of small carnivorous placental mammals from extinct order Hyaenodonta, that lived in North America during the early Eocene. Fossils of Pyrocyon have been found in Wyoming and Colorado.^[6] Weight of Pyrocyon dioctetus has been estimated at around 2.6 kilograms.^[7]

Phylogeny

The phylogenetic relationships of genus Pyrocyon are shown in the following cladogram.^[8]^[9]^[10]^[11]^[12]

†Hyaenodonta

†Eoproviverra

†Boualitomidae

	†Arfiidae

	†Limnocyonidae

†Sinopidae

†Hyaenodontoidea

†Pyrocyon

	†Pyrocyon dioctetus

	†Pyrocyon strenuus

†Gazinocyon

†Afro‑Arabian clade

†Parvavorodon

	†Indohyaenodontidae

	†Glibzegdouia

†Koholiidae

†Tritemnodon

†Teratodontidae

†Apterodontinae

	†Maocyon	†Maocyon/Orienspterodon clade

	†Orienspterodon

†Hyainailourinae

	†Hemipsalodon

?	†Ischnognathus

†Akhnatenavus clade

†Akhnatenavus

†"Pterodon" sp. (BC 15’08)

†Hyainailourinae sp. (UON 84-359)

†Hyainailourinae sp. C (DPC 9243 & DPC 10315)

†Hyainailourinae sp. D (DPC 6545)

	†Kerberos

	†"Pterodon" syrtos

†Pterodon clade

†Pterodontina

	†Hyainailourinae sp. A (DPC 6555)

	†"Pterodon" africanus

	†Parapterodon

†"Pterodon" sp. (DPC 5036)

†"Pterodon" phiomensis

†Hyainailourini

†Paroxyaenini

†Falcatodon

†Sectisodon

	†Exiguodon

	†Isohyaenodon zadoki

†Isohyaenodon (†Isohyaenodontina)

†Isohyaenodon andrewsi

	†Sivapterodon

	†Hyainailouros bugtiensis

†Hyainailouros napakensis

†Hyainailouros

	†Hyainailouros sulzeri

	†Hyainailourinae sp. (GSN AD 100’96)

†Simbakubwa

	†Leakitheriini

	†Megistotherium

	†Mlanyama

	†Metapterodontini

†Prionogalidae

†Hyainailouridae

†Lahimia clade

†Arfia clade

†Galecyon clade

†Indohyaenodon clade

†Tritemnodon clade

†Hyainailouroidea

See also

References

^ Gingerich, Philip D.; Harvey A. Deutsch (1989). "Systematics and evolution of early Eocene Hyaenodontidae (Mammalia, Creodonta) in the Clarks Fork Basin, Wyoming". Museum of Paleontology, University of Michigan. 27 (13): 327–391.
^ E. D. Cope. (1875.) "Systematic Catalogue of Vertebrata of the Eocene of New Mexico, Collected in 1874." Geographical Explorations and Surveys West of the 100th Meridian, Engineer Department, U. S. Army 5-37
^ A. V. Lavrov (1999.) "Adaptive Radiation of Hyaenodontinae (Creodonta, Hyaenodontidae) of Asia." in 6th Congress of the Theriological Society, Moscow, April 13–16, p. 138 [in Russian].
^ E. D. Cope (1882.) "Contributions to the history of the Vertebrata of the lower Eocene of Wyoming and New Mexico, made during 1881." Proceedings of the American Philosophical Society 20(111):139-197
^ L. Van Valen (1965.) "Some European Proviverrini (Mammalia, Deltatheridia)." Palaeontology 8(4):638-665
^ Paleobiology Database: Pyrocyon
^ Egi, Naoko (2001). "Body mass estimates in extinct mammals from limb bone dimensions: the case of North American hyaenodontids" (PDF). Palaeontology. 44 (3): 497–528. Bibcode:2001Palgy..44..497E. doi:10.1111/1475-4983.00189. S2CID 128832577. Archived from the original (PDF) on 2022-04-13. Retrieved 2015-08-28.
^ Borths, Matthew R; Stevens, Nancy J (2017). "Deciduous dentition and dental eruption of Hyainailouroidea (Hyaenodonta, "Creodonta," Placentalia, Mammalia)". Palaeontologia Electronica. 20 (3): 55A. doi:10.26879/776.
^ Matthew R. Borths; Nancy J. Stevens (2019). "Simbakubwa kutokaafrika, gen. et sp. nov. (Hyainailourinae, Hyaenodonta, 'Creodonta,' Mammalia), a gigantic carnivore from the earliest Miocene of Kenya". Journal of Vertebrate Paleontology. 39 (1): e1570222. Bibcode:2019JVPal..39E0222B. doi:10.1080/02724634.2019.1570222. S2CID 145972918.
^ Floréal Solé; Bernard Marandat; Fabrice Lihoreau (2020). "The hyaenodonts (Mammalia) from the French locality of Aumelas (Hérault), with possible new representatives from the late Ypresian". Geodiversitas. 42 (13): 185–214. doi:10.5252/geodiversitas2020v42a13.
^ Solé, F.; Morlo, M.; Schaal, T.; Lehmann, T. (2021). "New hyaenodonts (Mammalia) from the late Ypresian locality of Prémontré (France) support a radiation of the hyaenodonts in Europe already at the end of the early Eocene". Geobios. 66–67: 119–141. Bibcode:2021Geobi..66..119S. doi:10.1016/j.geobios.2021.02.004. S2CID 234848856.
^ Averianov, Alexander; Obraztsova, Ekaterina; Danilov, Igor; Jin, Jian-Hua (2023). "A new hypercarnivorous hyaenodont from the Eocene of South China". Frontiers in Ecology and Evolution. 11. doi:10.3389/fevo.2023.1076819. ISSN 2296-701X.

Mammals of clade Pan-Carnivora

Kingdom: Animalia
Phylum: Chordata
Class: Mammalia
Infraclass: Placentalia
Superorder: Laurasiatheria
Clade: Scrotifera
Grandorder: Ferungulata
Mirorder: Ferae

Carnivoramorpha	See Carnivoramorpha below ↓
†Hyaenodonta	See Hyaenodonta below ↓
†Oxyaenodonta	See Oxyaenodonta below ↓
†Wyolestidae	†Wyolestes
†Simidectes †Altacreodus †Tinerhodon

†Hyaenodontoidea

†Hyaenodontidae	†Alienetherium †Boritia †Cartierodon †Consobrinus †Cynohyaenodon †Eurotherium †Hyaenodon †Leonhardtina †Matthodon †Neosinopa †Oxyaenoides †Paenoxyaenoides †Paracynohyaenodon †Praecodens †Preregidens †Prodissopsalis †Propterodon †Protoproviverra †Quercytherium

†Proviverridae

†Afro‑Arabian
clade

†Indohyaenodontidae

†Hyainailouroidea

†Hyainailouridae

†Maocyon/Orienspterodon clade

†Maocyon
†Orienspterodon

†Apterodontinae

†Apterodon
†Quasiapterodon

†Hyainailourinae

†Leakitherium †Megistotherium †Mlanyama †Metapterodon †Pakakali †Paroxyaena †Simbakubwa
†Akhnatenavus clade	†Akhnatenavus †Hemipsalodon †Ischnognathus
†Hyainailourini	†Exiguodon †Falcatodon †Hyainailouros †Parapterodon †Sectisodon †Sivapterodon †Isohyaenodon †Kerberos †Pterodon

†Prionogalidae

†Teratodontinae

other representatives

†Eoproviverra †Gazinocyon †Pyrocyon
†Arfia clade	†Arfia
†Galecyon clade	†Galecyon
†Lahimia clade	†Boualitomus †Lahimia
†Limnocyonidae	†Iridodon †Limnocyon †Oxyaenodon †Prolaena †Prolimnocyon †Thinocyon
†Sinopidae	†Acarictis †Prototomus †Sinopa

ichnotaxa
of Hyaenodonta

†Oxyaenodonta

†Machaeroidinae	†Apataelurus †Diegoaelurus †Isphanatherium †Machaeroides
†Oxyaeninae	†Argillotherium †Dipsalidictis †Malfelis †Oxyaena †Patriofelis †Protopsalis †Sarkastodon
†Palaeonictinae	†Ambloctonus †Dipsalodon †Palaeonictis
†Tytthaeninae	†Tytthaena

Carnivoramorpha

Carnivoraformes
(Clade "A")

Clade "B"

†Messelogale †Miocyon †Simamphicyon †Uintacyon †Xinyuictis †Zodiocyon
†Quercygalidae	†Quercygale
†Gracilocyon/Oodectes clade	†Eogale †Gracilocyon †Oodectes †Paramiacis †Paroodectes

Clade "C"

Clade "D"

†Ceruttia
†Harpalodon
†Lycarion
†Neovulpavus
†Procynodictis
†Prodaphaenus
†Tapocyon
†Walshius

Carnivora
(Clade "E")

Caniformia	(See Caniformia)
Feliformia	(See Feliformia)

other representatives

†Africtis
†Dawsonicyon
†Miacis

ichnotaxa of
Carnivoraformes

†Falcatipes

†Viverravoidea

†Viverravidae

†Orientictis †Pappictidops †Preonictis †Variviverra
†Didymictinae	†Bryanictis †Didymictis †Intyrictis †Pristinictis †Protictis †Raphictis
†Ictidopappinae	†Ictidopappus
†Viverravinae	†Simpsonictis †Viverravus †Viverriscus

Incertae sedis

†Ravenictis

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