Semirostrum (SciiFii)

The long-chinned porpoise (Semirostrum maximus) is a species of porpoise that originally lived between 5 and 1.5 million years ago during the Pliocene epoch and was once extinct, but has since been brought back from extinction by SciiFii and introduced to modern Pacific coastlines of Mexico, California, Oregon, Washington, and southern Canada. The species is highly distinctive due to the extremely long symphysis on the lower jaw, reaching lengths of 85 centimeters (33.46 inches), while that of a native modern porpoise are 1–2 centimeters (0.39–0.79 inches) long. It uses its elongated lower jaw to probe along the sediment in the murky estuaries and shores in search of food, which can easily be scooped up the symphysis and into the jaws. The conservation of the long-chinned porpoise is Least Concern due to successful conservation efforts.