Hi, it is illiegal to inport animals from Argintine so all the Ceratophrys cranwelli's we see on the market in the US are CB.
Brazil is the country with the law agaist exportation of their animals. As long as they are gotten outside of Brazil's borders it is not ilegal, but very expensive to import from other countries.
You are right though. All babies on the market of C. cranwelli are CB.