Who formally established the genus name Xiphactinus in 1870?

Answer

Joseph Leidy

The formal establishment of the genus name *Xiphactinus* is attributed specifically to Joseph Leidy. This designation occurred in the year 1870. The name was derived from Greek words that were interpreted to mean 'sword-ray,' a name likely chosen due to the initial discovery of a large pectoral fin spine associated with the creature. This initial naming was significant, though it was based on limited material, contributing to later classification instability until the synonymy issues were resolved.

Who formally established the genus name Xiphactinus in 1870?
animalextinctclassificationfishXiphactinus