Elise,
Sorry for the mixed descriptors. The trianglar pieces that were the small end of the rack of ribs were the ones I was referring to when I wrote of buying them in 10 lb boxes at Stater Brothers. They were a product of Denmark.
Many of the BBQ joints we have visaited sell half-racks of pork ribs…Large or Small half. The small half always includes that triangle at the end of the rack.