Pristinailurus

Pristinailurus Temporal range:

Skull of P. bristoli

Reconstructed head of P. bristoli
Scientific classification
Kingdom:	Animalia
Phylum:	Chordata
Class:	Mammalia
Order:	Carnivora
Family:	Ailuridae
Genus:	†Pristinailurus Wallace & Wang, 2004
Species:	†P. bristoli
Binomial name
†Pristinailurus bristoli Wallace & Wang, 2004

Pristinailurus bristoli is a fossil species in the carnivoran family Ailuridae. It is well-represented in the Hemphillian-aged deposits at the Gray Fossil Site in Gray, Tennessee.^[1] It was significantly larger than the living Ailurus, but probably possessed a comparatively weaker bite. P. bristoli was sexually dimorphic, as males appeared to have been up to twice the size of females.^[2]

Anatomy

P. bristoli was likely adapted to terrestrial and some arboreal locomotion, with a generalist diet.^[3]

References

^ Wallace, Steven C.; Wang, Xiaoming (September 2004). "Two new carnivores from an unusual late Tertiary forest biota in eastern North America" (PDF). Nature. 431 (7008): 556–559. Bibcode:2004Natur.431..556W. doi:10.1038/nature02819. PMID 15457257. S2CID 4432191.
^ "Life in the Cenozoic Era: Bristol's Panda (Pristinailurus bristoli)". 23 January 2015. Archived from the original on 9 October 2021.
^ "ANATOMICAL COMPARISON OF THE POSTCRANIAL SKELETON OF THE EXTANT RED PANDA, AILURUS FULGENS, TO THE EXTINCT LATE MIOCENE AILURIDS SIMOCYON BATALLERI AND PRISTINAILURUS BRISTOLI (CARNIVORA, AILURIDAE)" (PDF). Researchgate. Dec 31, 2025.

Genera of red pandas, raccoons, skunks, mustelids and their extinct allies

Kingdom: Animalia
Phylum: Chordata
Class: Mammalia
Order: Carnivora

Musteloidea

†Peignictis †Plesiogale
Ailuridae	†Actiocyon Ailurus †Alopecocyon †Amphictis †Bonisictis †Magerictis †Parailurus †Pristinailurus †Protursus †Rothictis †Simocyon
Mephitidae	†Brachyprotoma Conepatus Mephitis Mydaus †Palaeomephitis †Promephitis Spilogale
Procyonidae	†Amphinasua †Angustictis †Arctonasua Bassaricyon Bassariscus †Bassaricynoides †Chapalmalania †Cyonasua †Edaphocyon Nasua Nasuella †Parahyaenodon †Paranasua †Parapotos †Probassariscus Procyon †Protoprocyon Potos †Tetraprothomo

Mustelidae

†Acheronictis †Aragonictis †Arikarictis †Circamustela †Erokomellivora †Franconictis †Kenyalutra †Kinometaxia †Laphyctis †Luogale †Marcetia †Matanomictis †Melidellavus †Mellalictis †Mesomephitis †Miomustela †Namibictis †Oaxacagale †Palaeomeles †Paragale †Parataxidea †Perunium †Plesictis †Plesiogale †Plesiomeles †Prepoecilogale †Presictis †Promellivora †Proputorius †Pyctis †Sabadellictis †Semantor †Sinictis †Sivalictis †Skopelogale †Sonitictis †Taxodon †Trochotherium †Xenictis †Zorilla
Guloninae	†Canimartes Eira †Ferinestrix Gulo †Iberictis †Ischyrictis Martes Pekania †Plesiogulo †Plionictis †Sthenictis
Helictidinae	Melogale
Ictonychinae	†Baranogale †Brevimalictis †Cernictis †Eirictis †Enhydrictis Galictis Ictonyx †Lutravus Lyncodon †Martellictis †Negodiaetictis †Oriensictis †Pannonictis †Poecilictis Poecilogale †Sminthosinis †Stipanicicia †Trigonictis †Trochictis Vormela
Lutrinae	†Algarolutra Aonyx †Cyrnaonyx †Cyrnolutra †Djourabus Enhydra †Enhydriodon †Enhydritherium Hydrictis †Limnonyx Lontra Lutra †Lutraeximia †Lutrictis Lutrogale †Megalenhydris †Megencephalon †Melodon †Mionictis †Nesolutra †Paludolutra †Paralutra †Pelycictis Pteronura †Sardolutra †Satherium †Siamogale †Sivaonyx †Teruelictis †Torolutra †Tyrrhenolutra †Vishnuonyx
†Leptarctinae	Craterogale Leptarctus Trocharion
Melinae	†Arctomeles Arctonyx Meles †Promeles
Mellivorinae	†Ekorus †Eomellivora †Hoplictis Mellivora †Moralesictis
†Mustelavinae	Mustelavus
Mustelinae	†Dinogale †Lartetictis †Legionarictis Mustela Neogale †Tisisthenes
†Oligobuninae	Brachypsalis Corumictis Floridictis Megalictis Oligobunis Parabrachypsalis Paroligobunis Promartes Zodiolestes
Taxidiinae	†Chamitataxus †Pliotaxidea Taxidea

Taxon identifiers
Pristinailurus	Wikidata: Q20679564 Wikispecies: Pristinailurus GBIF: 6142157 IRMNG: 1476981 Paleobiology Database: 83131
Pristinailurus bristoli	Wikidata: Q18420311 Wikispecies: Pristinailurus bristoli GBIF: 6142158 Open Tree of Life: 6145378 Paleobiology Database: 83132