(1) `` Pogonodon '' was described by Edward Drinker Cope in 1880 , and two species are known : `` P. davisi '' and `` P. platycopis '' .
(2) `` Pogonodon '' was described in 1880 by Edward Drinker Cope . Two species are recognized , `` P. davisi '' and `` P. platycopis '' .

Do these two sentences mean the same thing?
yes