Laccognathus embryi  Laccognathus embryi is an extinct species of porolepiform lobe-finned fish recovered from Ellesmere Island, Canada. It existed during the Frasnian age of the Late Devonian epoch (around 385.3 to 374.5 mya). Specimens from at least 22 individuals of "Laccognathus embryi" were recovered from the Fram Formation of Ellesmere Island, Nunavut, Canada from 2000 to 2008 in the Nunavut Paleontological Expeditions. The expeditions were led by Jason P. Downs, Edward Daeschler, Farish Jenkins Jr., and Neil Shubin, and previously resulted in the discovery of the tetrapodomorph "Tiktaalik roseae" from the same locality. Ellesmere Island was also the site of previous Norwegian scientific expeditions by the ship "Fram" in 1893-1896 by Fridtjof Nansen and in 1898–1902 by Otto Sverdrup. In the second expedition, a few vertebrate fossils were collected from Ellesmere Island by a member of Sverdrup's crew, the geologist Per Schei. The collection included a few porolepiform scales attributed to "Glyptolepis" and "Holoptychius". Prior to its discovery, the genus "Laccognathus" was known only from Latvia and Russia. "L. embryi" is the first member of the genus discovered in North America. The fossil sarcopterygian fish "Laccognathus embryi" of the Devonian was named in honour of Geologist Ashton F. Embry. Like other members of the genus, "Laccognathus embryi" possessed three deep longitudinal pits (fossae) on the external surface of the lower jaw. They are believed to have functioned as sensory pits able to detect changes in surrounding water pressure, similar to the lateral line of modern fishes and sharks, an analog to our ears. It had a distinctly dorsoventrally flattened short and wide head, less than one-fifth of the length of the body and with a width-to-length ratio of approximately 2:1. The eyes are very small, even smaller than those of "L. panderi". The jaws possessed coronoid fangs up to in length. These are bordered with marginal teeth, with the exception of coronoids 1 and 2. Much of the external surface of the lower jaw is oriented downwards, suggesting that the animal spent a considerable amount of time resting on the substrate.