Paws were attached to underside of carriage in Zabaikalsk region.
Cargo with 650 fragments from the extinct beasts was held in Vladivostok after illegal export from Yakutia.
In separate case, members of a 'bird mafia' illegally snaring and exporting Red Book hawks and falcons to Middle East were detained in Buryatia.
At this rate, the species could be extinct in 6 years, according to latest shocking figures - but are the predators really in such jeopardy?
Endangered big cat is rescued from black market animal traders.
As police say lama found in lotus positon was destined for sale on black market, there are claims it was one step away from becoming a Buddha.
Desperate attempt to protect saker falcons known as the feathery treasure of Siberia.
Earlier reports suggested organised gangs seek to sell gyrfalcons on the black market for as much as $50,000 each.
Border guards seize 14 birds, as FSB lead search for criminals behind cruelty.
Skin and skull of rare animal was hidden in the suspect's car.