
xiphodontidae

gefodontidae anedi 40.4-33.9 million samvatsaraala kritam airopaku sthaanikamgaa unna, sumaru 7.5 million samvatsaraala kritam unna, samaana-kaali gala gongali purugula (arder artiodactila) yokka antarinchipoyina kutumbam. vaaru, bahusha, anni bhusambandhamaina saakaahaarulu. "paraxifodon" vaaru kaneesam diguva oligocene varaku manugada saaginchaarani suuchistumdi.
vargeekarana.
gefodontideku puvvu (1883) anie paeru pettaru. idhi catrodectilaku (1889), syphodontoidaku (1986), tylopodaku (1988) ketayinchabadindi.