| Name | Novelty | Status | Authors | Age | Type locality | Country | Notes | Images |
|---|---|---|---|---|---|---|---|---|
| Anthomyia burgessi[3] | Sp nov | nomen dubium | Scudder | ?Ypresian | Quesnel ?Fraser Formation | An anthomyiid fly. Considered nomen dubium without discussion by Michelsen (1996).[4] | ||
| Anthomyia inanimata | Sp nov | nomen dubium | Scudder | ?Ypresian | Quesnel ?Fraser Formation | An anthomyiid fly. Considered nomen dubium without discussion by Michelsen (1996). | ||
| Aphaenogaster longaeva[5] | Sp nov | nomen dubium | Scudder | ?Ypresian | Quesnel ?Fraser Formation | A myrmicine ant, possibly nomen dubium.[6] | ||
| Boletina sepulta | Sp nov | valid | Scudder | ?Ypresian | Quesnel ?Fraser Formation | A fungus gnat. | ||
| Brachypeza abita | Sp nov | valid | Scudder | ?Ypresian | Quesnel ?Fraser Formation | A mycetophiline fungus gnat. | ||
| Brachypeza procera | Sp nov | valid | Scudder | ?Ypresian | Quesnel ?Fraser Formation | A mycetophiline fungus gnat. | ||
| Calyptites | Gen et sp nov | valid | Scudder | ?Ypresian | Quesnel ?Fraser Formation | An ant of uncertain placement. | ||
| Formica arcana | Sp nov | valid | Scudder | ?Ypresian | Quesnel ?Fraser Formation | A formicine ant | ||
| Hypoclinea obliterata | Sp nov | jr synonym | Scudder | ?Ypresian | Quesnel ?Fraser Formation | A dolichoderine ant Moved to Dolichoderus obliteratus (1893)[7] | ||
| Heteromyza senilis | Sp nov | valid | Scudder | ?Ypresian | Quesnel ?Fraser Formation | A heleomyzid fly. | ||
| Lachnus petrorum | Sp nov | jr synonym | Scudder | ?Ypresian | Quesnel ?Fraser Formation | An aphidomorph of uncertain placement Moved to Geranchon petrorum (1890)[8] | ||
| Liometopum pingue | Sp nov | valid | Scudder | Ypresian | Green River Formation |  United States | An ant species, moved to Eoformica pingue in 1930 | |
| Lithortalis | Gen et sp nov | valid | Scudder | ?Ypresian | Quesnel ?Fraser Formation | A picture-winged fly. Type species L. picta | ||
| Lonchaea senescens | Sp nov | valid | Scudder | ?Ypresian | Quesnel ?Fraser Formation | A lauxaniid fly. Referred to Lauxaniidae without redescription.[9] | ||
| Palloptera morticina | Sp nov | valid | Scudder | ?Ypresian | Quesnel ?Fraser Formation | A flutter-wing fly. | ||
| Pimpla decessa | Sp nov | valid | Scudder | ?Ypresian | Quesnel ?Fraser Formation | A pimpline ichneumon parasitic wasp | ||
| Pimpla saxea | Sp nov | valid | Scudder | ?Ypresian | Quesnel ?Fraser Formation | A pimpline ichneumon parasitic wasp | ||
| Pimpla senecta | Sp nov | valid | Scudder | ?Ypresian | Quesnel ?Fraser Formation | A pimpline ichneumon parasitic wasp | ||
| Prometopia depilis | Sp nov | valid | Scudder | ?Ypresian | Quesnel ?Fraser Formation | A sap beetle | ||
| Sciomyza revelata | Sp nov | valid | Scudder | ?Ypresian | Quesnel ?Fraser Formation | A marsh fly. | ||
| Trichonta dawsoni | Sp nov | valid | Scudder | ?Ypresian | Quesnel ?Fraser Formation | A mycetophiline fungus gnat. | ||
| Name | Novelty | Status | Authors | Age | Unit | Location | Notes | Images |
|---|---|---|---|---|---|---|---|---|
| Dasygnathus | Junior synonym | Huxley | Late Triassic | Lossiemouth Sandstone Formation | A misidentified ornithosuchid archosaur whose name was preoccupied by MacLeay, 1819. It was later renamed Dasygnathoides. Synonym of Ornithosuchus | |||
| Palaeoctonus | Nomen dubium | Cope | Dubious genus of misidentified phytosaur. | |||||
| Suchoprion | Nomen dubium | Cope | Dubious genus of misidentified phytosaur. | |||||
O. W. Lucas collected the first remains of what would later in the year be named Laelaps trihedrodon from Quarry I of the Saurian Hill at Garden Park, Colorado.[10] Edward Drinker Cope would describe the material later in the year in a short paper titled "On a carnivorous dinosaurian from the Dakota beds of Colorado."[11] The "Dakota beds" he references are actually Morrison Formation strata.[10] Cope claims to have a skeleton of unspecified completeness on which to establish the new species, but only describes a partial dentary which has 5 successional teeth, 2 functional teeth, and one tooth missing from its socket.[11] All of the preceding material has since been lost to science with the exception of 5 broken, partial tooth crowns.[12] From the now missing dentary, Cope infers that the creature is a carnivore and compares its dentition to that belonging to other members of his infamous genus "Laelaps", L. aquilunguis and L. incrassatus.[11] Cope concludes the paper with a pointed criticism of his rival O. C. Marsh's attempt to rename Laelaps as the genus Dryptosaurus because the generic name Laelaps has been used in entomology.[13] Cope claims that since the mite genus Laelaps was a synonym that the name was not truly preoccupied and Marsh's erection of Dryptosaurus has therefore created a new, redundant synonym of Laelaps the dinosaur.[13] However, subsequent researchers have supported Marsh's new name.