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The show you're thinking of is "Montana Jones"
A quick Google picture search confirms this! Thank you!! (PS: Wow, the show's title is very un-subtile with the Indiana Jones Shout-Out...)
I think it's more of a spiritual sequel to the TV show that Hayao Miyazaki had worked on, "Famous Detective HOLMES" (aka "Sherlock Hound").
Even the Big Bad and his henchman are expys to anthro Professor Moriarty.
An animated tv-series. COULD have been an anime, but I am not sure. The characters were all anthropomorphic felines. Only their heads were animal-like, the rest of their bodies (apart from the fur) were human. The protagonists were three typical Adventurer Archaeologists: Always hunting treasures in ancient ruins, at least one of them dressed like Indiana Jones, seemingly living in the first half of the 20th century, ect. They were two males and one female. Interestingly, the female was more anthropomorphic than her two male companions: (Caucasian) skin-coloured instead of fur-coloured, and with a less protruding and less animal-like muzzle.
Edited by LobsterMagnus