For decades, reconstructions of its bulky body have ended in a long, narrowing tail like the ones on its many theropod cousins. The red-brown remains laid before me are altering that picture.

Pulmonary hypertension (PH) describes heterogeneous population of patients with a mean pulmonary arterial pressure >20 mm Hg. Rarely, PH presents as a primary disorder but is more commonly part of a ...