Canis edwardii, also known as Edward's wolf, is an extinct species of wolf in the genus Canis which was endemic to North America three million years ago from the Late Blancan stage of the Pliocene epoch and was extinct by the end of the Irvingtonian stage of the Pleistocene epoch.: p4
Canis edwardii was named by Gazin in 1942.
Xiaoming Wang and Richard H. Tedford proposed that the genus Canis was the descendant of the coyote-like Eucyon davisi and its remains first appeared in the Miocene (6 Mya) in the Southwestern USA and Mexico. By the Pliocene (5 Mya), the larger Canis lepophagus appeared in the same region, and by the Early Pleistocene (1 Mya) Canis latrans (the coyote) was in existence. They proposed that the progression from Eucyon davisi to C. lepophagus to the coyote was linear evolution.: p58 Additionally, C. edwardii, C. latrans, and C. aureus thought to have formed a small clade together and because C. edwardii appeared earliest, spanning the mid-Blancan (late Pliocene) to the close of the Irvingtonian (late Pleistocene) it is proposed as the ancestor.: p175, 180
Late Pliocene-Early Pleistocene in North America. The first definite wolf appeared in the Late Blancan/Early Irvingtonian,: p240  and named C. priscolatrans that was either very close to or a synonym for Canis edwardii.: p241 : 82  It resembled C. rufus in cranial size and proportions but with more complex dentition.: p241 However, there are no fossils of C. rufus until the Late Rancholabrean.: p242
Björn Kurtén was uncertain if C. priscolatrans derived from C. lepophagus and C. arnensis, but believed that C. priscolatrans was a population of large coyotes that were ancestral to Rancholabrean and recent C. latrans. He noted that C. arnensis of Europe showed striking similarities to C. priscolatrans, and they could represent what once was a holarctic population of coyotes.: p27 R. M. Nowak disagreed, and believed that C. priscolatrans was a counterpart to the European C. etruscus. Kurtén later proposed that both C. priscolatrans and C. etruscus were part of a group which led to C. lupus, but was not sure if they evolved separately from C. lepophagus or a possible common ancestor that was derived from C. lepophagus.
The remains of the larger coyote-like C. edwardii have been found in the later Pliocene in the Southwestern USA along with C. lepophagus, which indicates a descent.: p60 Tedford recognised C. edwardii and found that the craniodental morphology of C. priscolatrans fell inside that of C. edwardii such that the species name C. priscolatrans was doubtful (nomen dubium).: p131
C. edwardii was larger than C. latrans and differs in skull and some tooth proportions.: p129 , under this idea C.edwardii was a modest sized canid. A study of isotopes showed C. edwardii had a dietary overlap with the saber toothed cat Smilodon Gracilis, the large size of Smilodon Gracilis and its similar sized prey implied C. edwardii might have hunted in packs due to the size of the prey included in the study.
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