Home›Articles›Mammalia, the jaw bones that became an earArticleMammalia, the jaw bones that became an earConnectionsSourcesComments (0)Reader Challenges (0)ConnectionsArticle OnMammalia, Taxa Well-attested SourcesMammal (Wikipedia)Anatomy: Distinguishing features sectionQuote, Anatomy: Distinguishing features sectionIn crown-group mammals, sound is carried from the eardrum by a chain of three bones, the malleus, the incus and the stapes. Ancestrally, the malleus and the incus are derived from the articular and the quadrate bones that constituted the jaw joint of early therapsids.View the SourceNature Atlas Long-Form Articles, First EditionComments (0)No comments yet. Be the first to share a thought.Sign in to join the discussion.Reader Challenges (0)No disputes yet. Spotted an error or a better source? Open the first one.Sign in to dispute this or suggest a correction.