Table 2.

Extinct specimens. Including Canidae with three different subfamilies and Hyaenodontidae.

Family	Subfamily	Species	Timeperiod
Canidae	Hesperocyoninae	† Hesperocyon gregarius	40–29 Ma
Canidae	Borophaginae	† Epicyon haydeni	16–7 Ma
Canidae	Borophaginae	†Aelurodon sp.	16–9 Ma
Canidae	Caninae	†Canis sp.	6 Ma - recent
Canidae	Caninae	† Alopex lagopus	2.5 Ma - recent
Hyaenodontidae	Hyaenodontidae	† Hyaenodon exiguus	37.2–33.8 Ma