Genus: Ogmodirus WILLISTON & MOODIE, 1913 (nomen dubium)
Etymology: Greek, ogmos, “straight line, furrow”, Greek, deira, “neck” + us: Straight-line neck.

Species: martinii WILLISTON & MOODIE, 1913
Etymology:

Holotype: KUVP 441

Locality: Unknown, Near Aurora, Cloud County, Kansas.

Horizon: Greenhorn Formation.

Biostratigraphy:

Age: Cenomanian Stage, Uppermost Gallic Subepoch-Turonian Stage, Lower Senonian Subepoch, Lower to middle Gulf Epoch, Late Cretaceous.

Material: 51 cervical vertebral centra, 2 dorsals, 18 cervical vertebrae, humerus, radius, ulna, phalanges, incomplete pubis, ilium, femur.
Note: Paleopathology, humerus shows avascular necrosis (ROTHSCHILDS & STORRS, 2003)