Omitted major premises in arguments are classified as first order enthymemes.

Evidence

Most often the omitted premise is the major premise (All good girls get a star on their forehead) and is called an enthymeme of the First Order. — Ruggero J. Aldisert, Agatha D. Aldisert, Logic for Lawyers- A Guide to Clear…, 411

Categorization

• corroborated: 2 independent passages support this claim — Ruggero J. Aldisert, Agatha D. Aldisert, Logic for Lawyers- A Guide to Clear…, 411
• XREF: connects to: An enthymeme is a formal argument with an unexpressed premise or conclusion. — Ruggero J. Aldisert, Agatha D. Aldisert, Logic for Lawyers- A Guide to Clear…, 411