The Obolellata are a class of Rhynchonelliform brachiopods with two orders, Obolellida and Naukatida.

[1] Obolellida is a small, extinct order of inarticulate brachiopods that existed from the early to middle Cambrian period.

The relationship of the Obolellida with other inarticulates is unclear, and were previously grouped together with the Siphonotretacea, before being given their own order.

One representative, Mummpikia, has been linked to the origin of calcitic shelled brachiopods more generally, hinting that obolellids may be paraphyletic.

[2] Trematobolidae includes taxa such as Alisina, whose soft-part anatomy is partly known.