Plants Angiosperms Name Novelty Status Authors Age Unit Location Notes ImagesEucommia eocenicaSp novvalid(Berry) BrownMiddle EoceneClaiborne Formationnew generic placement of Simaroubites eocenicaEucommia montanaSp novvalidBrownMiddle EoceneRenova FormationEucommia species, found across Western North America Pseudolarix americanaSp nov.nomen nudumBrownYpresianKlondike Mountain FormationA golden larch species, split into Pseudolarix arnoldii and Pseudolarix wehrii in 1992Tetrapteris simsoniSp novjr synonymBrownMiddle EoceneClarno FormationA walnut relative. Moved to Cruciptera simsonii in 1991
Arthropods insects Name Novelty Status Authors Age Unit Location Notes ImagesCentrinus longipesSp novvalidPitonThanetianMenat FormationA weevilLixus ligniticusSp novvalidPitonThanetianMenat FormationA weevilDoryderes laticollisSp novvalidPitonThanetianMenat FormationA pentatomid stinkbugPhaenolobus arvernusSp novvalidPitonThanetianMenat FormationAn ichneumonid wasp
Archosauromorphs Crurotarsans Name Novelty Status Authors Age Unit Location Notes ImagesAsiatosuchus grangeriGen. et. sp. novValidMookUpper EoceneIrdin Manha FormationA crocodyloid.
Dinosaurs Data from George Olshevky's dinosaur genera list. Name Novelty Status Authors Age Unit Location Notes ImagesCaenagnathusSternberg, R.M. 1940. A toothless bird from the Cretaceous of Alberta. J. Paleontol. 14: pp. 81-85. ValidSternberg
Plesiosaurs
New taxa Name Status Authors LocationImagesSeeleyosaurusValidWhite TremamesacleisJr. Synonym of Muraenosaurus.White
Synapsids
Non-mammalian
Name Status Authors Age Location NotesLocationAelurosauroidesJr. Synonym of Aelurosaurus.AelurosauropsisValidHaughton and BrinkBienotheriumValidYoung193 Millions of years ago. DicynodontoidesValidBroom257 Millions of years ago.
LeontocephalusJr. Synonym of Aelurognathus.NanictocephalusValidBroom257 Millions of years ago ProrubidgeaJr. Synonym of Aelurognathus
References