Clodion was active later in the 18th century. He was born after 1702, so could not possibly have made them in that year.
If these are Clodion originals, then they'd be worth many thousands of $ American and should probably be in a museum.
Clodion was heavily copied in the 19th century. The copies would also have a facsimile of his signature, so just the appearance of the name does not mean he made them, or was even alive when they were made.
I know it seems unfair. The good news is that eve if they're 19th century reproductions they could STILL be worth good money, depending on the quality!