 Cope took his sinking fortunes in stride . In writing to Osborn about the articles , he laughed at the outcome , saying , " It will now rest largely with you whether or not I am supposed to be a liar and am actuated by jealousy and disappointment . I think Marsh is impaled on the horns of Monoclonius sphenocerus . " Cope was well aware of his enemies and was carefree enough to name a species after a combination of " Cope " and " hater " , Anisonchus cophater . Through his years of financial hardship , he was able to continue publishing papers — his most productive years were 1884 and 1885 , with 79 and 62 papers published , respectively . The 1880s marked the publication of two of the best @-@ known fossil taxa described by Cope : the pelycosaur Edaphosaurus in 1882 and the early dinosaur Coelophysis in 1889 . In 1889 , he succeeded Leidy , who had died the previous year , as professor of zoology at the University of Pennsylvania . The small yearly stipend was enough for Cope 's family to move back into one of the townhouses he had been forced to relinquish earlier . 
