burlingiiform adjective1 •Of the facial sutures of a trilobite, having a proparian pattern in which anterior and posterior sutures run subparallel to create roughly rectangular fixigenae.Trilobites of the Burlingiidae Walcott, 1908 are small, usually less than 10 mm in length, with a proparian facial suture called the burlingiiform type (Whittington 1959, 1997). — 2017
