Opinions from E. D. Cope 1875

  • 'Adocus lineolatus belongs to Adocus'
  • 'Agathaumas milo is a subjective synonym of Hadrosaurus occidentalis'
  • 'Agathaumas sylvestris belongs to Agathaumas'
  • 'Aublysodon mirandus is a subjective synonym of Aublysodon horridus'
  • 'Bryactinus belongs to Holocephali'
  • 'Bryactinus amorphus belongs to Bryactinus'
  • 'Cinodon arctatus is recombined as Cionodon arctatus'
  • 'Cionodon stenopsis belongs to Cionodon'
  • 'Clidastes cineriarum belongs to Clidastes'
  • 'Clidastes planifrons belongs to Clidastes'
  • 'Coelosaurus antiquus belongs to Coelosaurus'
  • 'Deinodon horridus is recombined as Aublysodon horridus'
  • 'Diphrissa belongs to Holocephali'
  • 'Diphrissa latidens belongs to Diphrissa'
  • 'Dipristis meirsii is recombined as Ischyodus miersii'
  • 'Edestosaurus dispar is recombined as Clidastes dispar'
  • 'Edestosaurus stenops is recombined as Clidastes stenops'
  • 'Edestosaurus tortor is recombined as Clidastes tortor'
  • 'Edestosaurus velox is recombined as Clidastes velox'
  • 'Enchodus oxytomus belongs to Enchodus'
  • 'Enchodus tetraecus belongs to Enchodus'
  • 'Geosaurus mitchilli is recombined as Liodon mitchillii'
  • 'Hadrosaurus agilis belongs to Hadrosaurus'
  • 'Hadrosaurus cavatus belongs to Hadrosaurus'
  • 'Hadrosaurus minor belongs to Hadrosaurus'
  • 'Hadrosaurus tripos belongs to Hadrosaurus'
  • 'Holcodus acutidens is recombined as Mosasaurus acutidens'
  • 'Holcodus coryphaeus is recombined as Platecarpus coryphaeus'
  • 'Holcodus tectulus is recombined as Platecarpus tectulus'
  • 'Holops pneumaticus belongs to Holops'
  • 'Hypsibema crassicauda belongs to Hypsibema'
  • 'Ischyodus solidulus is recombined as Diphrissa solidula'
  • 'Ischyodus solidulus belongs to Ischyodus' according to Cope 1869
  • 'Isotaenia belongs to Holocephali'
  • 'Isotaenia neocaesariensis belongs to Isotaenia'
  • 'Laelaps aquilunguis belongs to Laelaps'
  • 'Laelaps macropus belongs to Laelaps'
  • 'Lamna macrorhiza belongs to Lamna'
  • 'Lamna mudgei belongs to Lamna'
  • 'Leptomylus forfex belongs to Leptomylus'
  • 'Lestosaurus felix is recombined as Platecarpus felix'
  • 'Lestosaurus gracilis is recombined as Platecarpus gracilis'
  • 'Lestosaurus latifrons is recombined as Platecarpus latifrons'
  • 'Lestosaurus simus is recombined as Platecarpus simus'
  • 'Liodon crassartus is recombined as Platecarpus crassartus'
  • 'Liodon curtirostris is recombined as Platecarpus curtirostris'
  • 'Liodon dyspelor belongs to Liodon'
  • 'Liodon glandiferus is recombined as Platecarpus glandiferus'
  • 'Liodon ictericus is recombined as Platecarpus ictericus'
  • 'Liodon latispinus is recombined as Platecarpus latispinis'
  • 'Liodon mudgei is recombined as Platecarpus mudgei'
  • 'Liodon nepaeolicus belongs to Liodon'
  • 'Macrosaurus laevis is recombined as Liodon laevis'
  • 'Macrosaurus proriger is recombined as Liodon proriger'
  • 'Mosasaurus minor is a subjective synonym of Mosasaurus acutidens'
  • 'Nectoportheus validus is recombined as Liodon validus'
  • 'Ornithotarsus immanis belongs to Ornithotarsus'
  • 'Osteopygis erosus belongs to Osteopygis'
  • 'Palaeoscincus costatus belongs to Palaeoscincus'
  • 'Pelecorapis varius belongs to Pelecorapis'
  • 'Plastomenus insignis belongs to Plastomenus'
  • 'Plesiosaurus brevifemur belongs to Plesiosaurus'
  • 'Polyonax mortuarius belongs to Polyonax'
  • 'Rhinosaurus micromus is recombined as Liodon micromus'
  • 'Sironectes anguliferus belongs to Sironectes'
  • 'Thespesius is a subjective synonym of Hadrosaurus'
  • 'Thespesius occidentalis is recombined as Hadrosaurus occidentalis'
  • 'Toxochelys serrifer belongs to Toxochelys'
  • 'Trachodon mirabilis is recombined as Hadrosaurus mirabilis'
  • 'Troodon formosus belongs to Troodon'