History UsefulNotes / PrehistoricLife

# '''''-ornis''''' and '''''-avis''''': Greek and Latin (respectively) for “bird”. Denotes... [[ExactlyWhatItSaysOnTheTin guess]]. ''E.g.'' ''Osteodontornis'', ''Icthyornis'', ''Dinornis'', ''Argentavis'', ''Avisaurus''. When used as a prefix, “-ornis” becomes '''''ornitho-''''': ''Ornithomimus'', ''Ornithosuchus'', the ornithopods, and the ornithischians.

# '''''-batrachus''''': Greek for “frog”. Several ancient amphibians (not only frogs) have this. ''E.g.'' ''Triadobatrachus'', ''Paleobatrachus''.

# '''''-ornis''''' and '''''-avis''''': Greek and Latin (respectively) for “bird”. Denotes... [[ExactlyWhatItSaysOnTheTin guess]]. ''E.g.'' ''Osteodontornis'', ''Icthyornis'', ''Argentavis'', ''Avisaurus''. When used as a prefix, “-ornis” becomes '''''ornitho-''''': ''Ornithomimus'', ''Ornithosuchus'', the ornithopods, and the ornithischians.

# '''''-aspis''''': Greek for “shield”. Almost all names of ostracoderms and some placoderms (both armored fish) have this suffix. ''E.g.'' ''Pteraspis'', ''Cephalaspis'', ''Drepanaspis'', ''Lunaspis''.

When reading the examples, you’ll notice that you can place many prehistoric critters into their correct groups with much confidence simply by observing their hallmark suffixes. But also note that ''not all'' members of each group have their designated suffix; nor are these suffixes necessarily exclusive of these groups (think about the whale ''Basilosaurus''). Usually these suffixes are Latinized Greek, but there are many examples from languages other than Latin and Greek, such as ''Yutyrannus''[[note]]''Yu'' is Mandarin for “feathered dragon”[[/note]], ''Azhdarcho''[[note]]named after a creature of Iranian mythology[[/note]], ''Tawa''[[note]]named for the Hopi sun god[[/note]], and ''Yi''[[note]]''Yi'' is Chinese for "wing"[[/note]]. Perhaps the most famous example of them is ''Quetzalcoatlus''[[note]]From Quetzalcoatl, the giant Aztec [[FeatheredDragons feathered snake]][[/note]]. Some names are even English: ''Drinker''[[note]]for nineteenth-century paleontologist Edward Drinker Cope[[/note]], ''Dreadnoughtus'' [[note]]from a gigantic warship of the past, the Dreadnought[[/note]]. Some names come from modern geography: ''Mosasaurus''[[note]]The Meuse River in Europe: its jaws were found nearby[[/note]], ''Edmontosaurus'', ''Albertosaurus''[[note]]Edmonton, Alberta, Canada[[/note]], ''Lesothosaurus''[[note]]Lesotho, a mini-state of Southern Africa[[/note]], ''Mamenchisaurus'', ''Tuojiangosaurus''[[note]]Ma-Men-Chi and Tuo-Jiang are two localities of China[[/note]], ''Saltasaurus'', ''Riojasaurus''[[note]]Salta and La Rioja, the two provinces of Argentina that have given their remains[[/note]], ''Minmi'', ''Muttaburrasaurus''[[note]]Minmi Crossing and Muttaburra, the places in Australia where their fossils were dug out[[/note]], ''Lisowicia''[[note]]Lisowice, a village in Poland near its fossil site[[/note]]. Others come from RealLife people's names: ''Andrewsarchus''[[note]]early-twentieth-century paleontologist Roy Chapman Andrews[[/note]]. ''Othnielosaurus'' [[note]]famous nineteenth-century dinosaur-hunter Othniel Charles Marsh, the Cope's archrival within the "Bone Wars"[[/note]], ''Herrerasaurus'', ''Alvarezsaurus''[[note]]Herrera and Alvarez are two common surnames in the Spanish-speaking world[[/note]], ''Scipionyx''[[note]]"Scipio's claw" because was found in Italy, the place of the original Roman Empire[[/note]], ''Leaellynasaura''[[note]]named after its discoverers' daughter Leaellyn[[/note]], ''Avaceratops''[[note]]named after its describer's wife, Ava[[/note]], ''Inostrancevia''[[note]]named in honour of the geologist Aleksandr Inostrantsev[[/note]].

This page is all about [[https://youtu.be/60nG4ZZl_tw prehistoric life]], listing many species of extinct creatures, from plants to non-human hominins. [[EverythingsBetterWithDinosaurs Of course]] dinosaurs receive more details than the other groups, but it would be a really, ''really'' incomplete list without non-dinosaurs.

When reading the examples, you’ll notice that you can place many prehistoric critters into their correct groups with much confidence simply by observing their hallmark suffixes. But also note that ''not all'' members of each group have their designated suffix; nor are these suffixes necessarily exclusive of these groups (think about the whale ''Basilosaurus''). Usually these suffixes are Latinized Greek, but there are many examples from languages other than Latin and Greek, such as ''Yutyrannus''[[note]]''Yu'' is Mandarin for “feathered dragon”[[/note]], ''Azhdarcho''[[note]]named after a creature of Iranian mythology[[/note]], ''Tawa''[[note]]named for the Hopi sun god[[/note]], and ''Yi''[[note]]''Yi'' is Chinese for "wing"[[/note]]. Perhaps the most famous example of them is ''Quetzalcoatlus''[[note]]From Quetzalcoatl, the giant Aztec [[FeatheredDragons feathered snake]][[/note]]. Some names are even English: ''Drinker''[[note]]for nineteenth-century paleontologist Edward Drinker Cope[[/note]], ''Dreadnoughtus'' [[note]]from a gigantic warship of the past, the Dreadnought[[/note]]. Some names come from modern geography: ''Mosasaurus''[[note]]The Meuse River in Europe: its jaws were found nearby[[/note]], ''Edmontosaurus'', ''Albertosaurus''[[note]]Edmonton, Alberta, Canada[[/note]], ''Lesothosaurus''[[note]]Lesotho, a mini-state of Southern Africa[[/note]], ''Mamenchisaurus'', ''Tuojiangosaurus''[[note]]Ma-Men-Chi and Tuo-Jiang are two localities of China[[/note]], ''Saltasaurus'', ''Riojasaurus''[[note]]Salta and La Rioja, the two provinces of Argentina that have given their remains[[/note]], ''Minmi'', ''Muttaburrasaurus''[[note]]Minmi Crossing and Muttaburra, the places in Australia where their fossils were dug out[[/note]], ''Lisowicia''[[note]]Lisowice, a village in Poland near its fossil site[[/note]]. Others come from RealLife people's names: ''Andrewsarchus''[[note]]early-twentieth-century paleontologist Roy Chapman Andrews[[/note]]. ''Othnielosaurus'' [[note]]famous nineteenth-century dinosaur-hunter Othniel Charles Marsh, the Cope's archrival within the "Bone Wars"[[/note]], ''Herrerasaurus'', ''Alvarezsaurus''[[note]]Herrera and Alvarez are two common surnames in the hispanic-speaking world[[/note]], ''Scipionyx''[[note]]"Scipio's claw" because was found in Italy, the place of the original Roman Empire[[/note]], ''Leaellynasaura''[[note]]named after its discoverers' daughter Leaellyn[[/note]], ''Avaceratops''[[note]]named after its describer's wife, Ava[[/note]], ''Inostrancevia''[[note]]named in honour of the geologist Aleksandr Inostrantsev[[/note]].

When reading the examples, you’ll notice that you can place many prehistoric critters into their correct groups with much confidence simply by observing their hallmark suffixes. But also note that ''not all'' members of each group have their designated suffix; nor are these suffixes necessarily exclusive of these groups (think about the whale ''Basilosaurus''). Usually these suffixes are Latinized Greek, but there are many examples from languages other than Latin and Greek, such as ''Yutyrannus''[[note]]''Yu'' is Mandarin for “feathered dragon”[[/note]], ''Azhdarcho''[[note]]named after a creature of Iranian mythology[[/note]], ''Tawa''[[note]]named for the Hopi sun god[[/note]], and ''Yi''[[note]]''Yi'' is Chinese for "wing"[[/note]]. Perhaps the most famous example of them is ''Quetzalcoatlus''[[note]]From Quetzalcoatl, the giant Aztec [[FeatheredDragons feathered snake]][[/note]]. Some names are even English: ''Drinker''[[note]]for nineteenth-century paleontologist Edward Drinker Cope[[/note]], ''Dreadnoughtus'' [[note]]from a gigantic warship of the past, the Dreadnought[[/note]]. Some names come from modern geography: ''Mosasaurus''[[note]]The Meuse River in Europe: its jaws were found nearby[[/note]], ''Edmontosaurus'', ''Albertosaurus''[[note]]Edmonton, Alberta, Canada[[/note]], ''Lesothosaurus''[[note]]Lesotho, a mini-state of Southern Africa[[/note]], ''Mamenchisaurus'', ''Tuojiangosaurus''[[note]]Ma-Men-Chi and Tuo-Jiang are two localities of China[[/note]], ''Saltasaurus'', ''Riojasaurus''[[note]]Salta and La Rioja, the two provinces of Argentina that have given their remains[[/note]], ''Minmi'', ''Muttaburrasaurus''[[note]]Minmi Crossing and Muttaburra, the places in Australia where their fossils were dug out[[/note]], ''Lisowicia''[[note]]Lisowice, a village in Poland near its fossil site[[/note]]. Others come from RealLife people's names: ''Andrewsarchus''[[note]]early-twentieth-century paleontologist Roy Chapman Andrews[[/note]]. ''Othnielosaurus'' [[note]]famous nineteenth-century dinosaur-hunter Othniel Charles Marsh, the Cope's archrival within the "Bone Wars"[[/note]], ''Herrerasaurus'', ''Alvarezsaurus''[[note]]Herrera and Alvarez are two common surnames in the hispanic-speaking world[[/note]], ''Scipionyx''[[note]]"Scipio's claw" because was found in Italy, the place of the original Roman Empire[[/note]], ''Leaellynasaura''[[note]]named after its discoverers' daughter Leaellyn[[/note]], ''Avaceratops''[[note]]named after its describer's wife, Ava[[/note]].

# '''Silurian period''': First jawed fish and later ray-finned fish appeared. Plants and scorpions started to colonize dry land.

This page is all about [[ExactlyWhatItSaysOnTheTin prehistoric life]], listing many species of extinct creatures, from plants to non-human hominins. [[EverythingsBetterWithDinosaurs Of course]] dinosaurs receive more details than the other groups, but it would be a really, ''really'' incomplete list without non-dinosaurs.

# '''''-rhinus/rhino-''''': Greek for “nose”. Critters with something prominent on their noses often have this. ''E.g.'' ''Altirhinus'', ''Pachyrhinosaurus'', ''Eurhinodelphis'', ''Dicerorhinus''.

# '''''archaeo-''''', '''''palaeo-''''', '''''meso-''''', '''''caeno-''''', '''''neo-''''': The first two meaning “ancient”, the last two “recent” and “new” respectively, while ''meso'' means “middle”. ''E.g.'' ''Archaeopteryx''[[note]]“ancient feather”[[/note]], ''Palaeotherium''[[note]]“ancient beast”[[/note]], ''Mesonyx''[[note]]“middle nail”[[/note]], ''Caenolestes''[[note]]“recent robber”[[/note]], ''Neoceratodus''[[note]]“new horned tooth”[[/note]]. The word “palaeontology” means “the study of ancient beings”. There are also the prefixes of the main geological eras (following the older classifications): the Archaeozoic, the Paleozoic, the Mesozoic, the Cenozoic, and the Neozoic.

# '''''-ryu''''': Japanese for “[[DinosaursAreDragons dragon]]”. Across TheEighties 11 more or less fragmentary dinosaurs found in Japan were unofficially named "Fukuiryu" (an iguanodont), "Futabaryu" (a theropod), "Hironoryu" (a hadrosaur), "Hishanohamaryu" (a sauropod), "Kagaryu", "Katsuyamaryu", "Kitadaniryu", "Mifuneryu" (all theropods), "Moshiryu" (a sauropod), "Sanchuryu" (an ornithomimid), "Sugiyamaryu" (a sauropod). Then, in 1990, all them were renamed with the classic suffix -saurus, becoming "Fukuisaurus", "Futabasaurus", "Hironosaurus", "Hishanohamasaurus", "Kagasaurus", "Katsuyamasaurus", "Kitadanisaurus", "Mifunesaurus", "Moshisaurus", "Sanchusaurus", and "Sugiyamasaurus". All have not been described yet in official science except for ''Fukuisaurus'',[[note]]"Kitadanisaurus" is now lumped in the valid taxon ''Fukuiraptor'', while the name ''Futabasaurus'' is today assigned to a japanese sea-reptile related with ''Elasmosaurus''.[[/note]] and are thus labeled as ''Nomen nudum'' (lit. "naked name"); and some are also ''Nomen dubium'' (lit. "dubious name") -- the latter are those fossils that are too incomplete to be classified correctly. See also [[http://en.wikipedia.org/wiki/List_of_informally_named_dinosaurs here]].

# '''''-ceras/cerato-/-ceros/-ceroto-''''': Greek for “horn”. Guess wha prominent feature these creatures bear. ''E.g.'' ''Megaloceros'', ''Teleoceras'', ''Ceratosaurus''. Also the common name of a famous modern animal: the rhinoceros of course (meaning “horned nose”).

# '''''-therium''''': Greek for “beast” or “wild animal”. Most prehistoric mammals have this--the famous documentary ''Series/WalkingWithBeasts'' was so named in reference to the countless ''-therium''s here. ''E.g.'' ''Uintatherium'', "Baluchitherium", ''Chalicotherium'', ''Arsinoitherium'', ''Deinotherium'', ''Sivatherium'', ''Moeritherium''. But perhaps the most famous example is ''Megatherium''[[note]]“big beast”[[/note]]. Several ''-saurus''es have their ''-therium'' counterpart, too: ''Brontosaurus'' - "Brontotherium"; ''Stegosaurus'' - ''Stegotherium''; ''Elasmosaurus'' - ''Elasmotherium''; ''Megalosaurus'' - ''Megatherium''; ''Ceratosaurus'' - ''Ceratotherium''[[note]]the scientific name of the ''modern'' white rhinoceros![[/note]]. '''''Ther-''''' has the same meaning and is the prefix of two important groups of animals: the theropods and the therapsids.

# '''Jurassic period''': Dinosaurs became the largest and most diverse land vertebrates, and some became fliers (including possible proto-birds). New types of pterosaurs and marine reptiles evolved. The three still-living mammalian groups appeared.

# '''''-saurus''''': Greek for “lizard”: in paleontology identifies reptiles in general (in the traditional sense of the word), not only dinosaurs. ''E.g.'' ''Allosaurus'', ''Plesiosaurus'', ''Scutosaurus'', ''Edaphosaurus''. Often identifies amphibians as well: ''Mastodonsaurus''. The whale ''Basilosaurus'' is an exception due to ScienceMarchesOn (it was initially believed to be a marine reptile). The suffix can also become a prefix: ''Saurolophus'', ''Sauroctonus'', ''Saurosuchus'', the sauropods, and the saurischians. Also attested is the feminine variant '''''-saura''''': ''Maiasaura'', ''Leaellynasaura''.

# '''''-mimus''''': Greek for “mimic”: mostly identifies small birdlike theropods, particularly ornithomimids (whose names are usually preceded with a bird-related prefix). ''E.g.'' ''Garudimimus'', ''Struthiomimus'', ''Avimimus''. Also applied to some larger and smaller dinosaurs; specifically, theropods seem to get this suffix somewhat often, due to their close relation to avian dinosaurs: ''Suchomimus'', ''Sciurumimus''.

# '''''-onyx/-onychus''''': Greek for “nail” or “claw”. Animals with one or more enlarged claws in their hand or foot (or mainly known from their claws) have often these suffixes. ''E.g.'' ''Baryonyx'', ''Deinonychus'', ''Hesperonychus'', ''Megalonyx'', ''Scipionyx''. Alvarezsaurid names end with the variant '''''-onykus''''': ''Mononykus''.

# '''''-ryu''''': Japanese for “[[DinosaursAreDragons dragon]]”. In the 1980s, 11 very fragmentary dinosaurs found in Japan were unofficially named with this ending: "Fukuiryu", "Futabaryu", "Hironoryu", "Hishanohamaryu", "Kagaryu", "Katsuyamaryu", "Kitadaniryu", "Mifuneryu", "Moshiryu", "Sanchuryu", "Sugiyamaryu". Then all them were renamed with the classic suffix -saurus, becoming "Fukuisaurus", "Futabasaurus", "Hironosaurus", "Hishanohamasaurus", "Kagasaurus", "Katsuyamasaurus", "Kitadanisaurus", "Mifunesaurus", "Moshisaurus", "Sanchusaurus", and "Sugiyamasaurus". Most of them are still not described yet and are thus ''Nomen nudum'' ("naked name"); and many are also ''Nomen dubium'' ("dubious name") -- the latter are those fossils that are too incomplete to be classified formally in the known zoological genuses. See also [[http://en.wikipedia.org/wiki/List_of_informally_named_dinosaurs here]].

# '''''megalo-''''', '''''titano-''''', and '''''giganto-''''': Greek for “big”, “titanic”, and “gigantic”. ''E.g.'' ''Megalosaurus''[[note]]“big lizard”[[/note]], ''Megaloceros''[[note]]“big horn”[[/note]], ''Wintonotitan''[[note]]“Winchester titan”[[/note]], ''Titanoboa''[[note]]“titanic boa”[[/note]], ''Gigantophis''[[note]]“gigantic snake”[[/note]], ''Gigantopithecus''[[note]]“gigantic ape”[[/note]], ''Giganotosaurus''[[note]]“gigantic southern lizard”[[/note]], ''C. megalodon''[[note]]“enormous tooth”[[/note]].

# '''''-odon/-odonto-''''': Greek for “tooth”. Animals with notable teeth (or that are known mainly by their teeth) can get names containing this. ''E.g.'' ''Heterodontosaurus'', ''Thecodontosaurus'', ''Carcharodontosaurus''[[note]] “shark-toothed lizard”[[/note]]. Mammalian example are ''Smilodon'' and ''Glyptodon''. Other examples: ''Iguanodon'', ''Hypsilophodon'', ''Troodon'', ''Dimetrodon'', ''Dimorphodon'', ''Megalodon''. A deceptive case is ''Pteranodon'', which actually means “winged with ''no'' teeth”. Less-frequent is the variant '''''-odus''''', with the same meaning: ''Placodus'', ''Hybodus'', ''Phenacodus''.

# '''''-rhinus/rhino-''''': Greek for “nose”. Critters with something prominent on their noses often have this. ''E.g.'' ''Altirhinus'', ''Pachyrhinosaurus'', ''Eurhinodelphis''.
# '''''-rhynchus/rhyncho-''''': Greek for “beak”, but also “muzzle”. ''E.g.'' ''Rhamphorhynchus'', ''Metriorhynchus'', ''Rhynchosaurus'', ''Rhynchippus'', .
# '''''-gnathus/gnatho-''''': Greek for “jaw”. ''E.g.'' ''Compsognathus'', ''Cynognathus'', ''Batrachognathus'', ''Gnathosaurus''.
# '''''-pteryx/ptero-/-pterus/-pteron''''': Greek for “wing”, “feather”, but also “fin”. ''E.g.'' the winged ''Archaeopteryx'', ''Pterodaustro'', ''Dsungaripterus''; and the fish ''Eusthenopteron''. Also known is the variant '''''pteryg-''''' (indicating fins or fin-like structures): ''Pterygotus'', ''Stenopterygius''. Actinopterygii and Sarcopterygii respectively mean “rayed fin” and “fleshy fin”.

# '''''-spondylus''''': Greek for “vertebra”. ''E.g.'' ''Massospondylus'', ''Eustreptospondylus'', ''Bothriospondylus''.

# '''''-ch(e)irus/ch(e)iro-''''': Greek for “hand”. ''E.g.'' ''Deinocheirus'', ''Chirostenotes'', "Chirotherium".
# '''''-pus/-po-''''': Greek for “foot”. ''E.g.'' ''Moropus'', ''Astrapotherium'', ''Saltopus'', ''Saltoposuchus''.

# '''''diplo-''''': Greek for “double”. ''E.g.'' ''Diplodocus''[[note]]“double beam”[[/note]], ''Diplocaulus''[[note]]“double caul”[[/note]], ''Diplocynodon''[[note]]“double dog tooth”[[/note]],

# '''''diplo-''''': Greek for “double”. ''E.g.'' ''Diplodocus''[[note]]“double beam”[[/note]], ''Diplocaulus''[[note]]“double caul”[[/note]].

# '''''-cephalus/-cephalo-''''': Greek for “head”. ''E.g.'' ''Euoplocephalus'', ''Cistecephalus'', ''Planocephalosaurus''.

# '''''-rhynchus/rhyncho-''''': Greek for “beak”, but also “muzzle”. ''E.g.'' ''Rhamphorhynchus'', ''Rhynchosaurus'', ''Rhynchippus''.

# '''''-onyx/-onychus''''': Greek for “nail” or “claw”. Theropods with one enlarged claw in their hand or foot (or fossils mainly known from their claws) have often these suffixes. ''E.g.'' ''Baryonyx'', ''Deinonychus'', ''Nothronychus'', ''Megalonyx''. Alvarezsaurid names end with the variant '''''-onykus''''': ''Mononykus''.

# '''''-(h)oplo-''''': Greek for “armor”, “weapon”. ''E.g.'' ''Panoplosaurus'', ''Hoplophoneus'', ''Hoplitomeryx''.

# '''''-urus/uro-''''': Greek for “tail”. ''E.g.'' ''Dacentrurus'', ''Coelurus'', ''Urocordylus'', ''Macrurosaurus''. There is also '''''-cercus''''' with the same meaning: ''E.g.'' ''Pholidocercus'', ''Eucercosaurus''.

# '''''-oides''''': Greek for “similar to”, or figuratively, “false”. ''E.g.'' ''Dromaeosauroides'', ''Sinornithoides'', ''Campylognathoides''.

# '''''micro-''''': Greek for “small”, “tiny”. ''E.g.'' ''Microraptor''[[note]]“tiny plunderer”[[/note]], ''Microceratus''[[note]]“small horned one”[[/note]], ''Micropachycephalosaurus''[[note]]“small thick-headed lizard”[[/note]].

# '''''-ryu''''': Japanese for “[[DinosaursAreDragons dragon]]”. In the 1980s, 11 very fragmentary dinosaurs found in Japan were unofficially named with this ending: "Fukuiryu", "Futabaryu", "Hironoryu", "Hishanohamaryu", "Kagaryu", "Katsuyamaryu", "Kitadaniryu", "Mifuneryu", "Moshiryu", "Sanchuryu", "Sugiyamaryu". Then all them were renamed with the classic suffix -saurus, becoming "Fukuisaurus", "Futabasaurus", "Hironosaurus", "Hishanohamasaurus", "Kagasaurus", "Katsuyamasaurus", "Kitadanisaurus", "Mifunesaurus", "Moshisaurus", "Sanchusaurus", and "Sugiyamasaurus". Most of them are still not described yet and are thus ''Nomen nudum'' ("naked name"); and many are also ''Nomen dubium'' ("dubious name") -- the latter are those fossils that are too incomplete to be classified formally in the known zoological genuses. See also [[http://en.wikipedia.org/wiki/Lust_of_informally_named_dinosaurs here]].

# '''''-ryu''''': Japanese for “[[DinosaursAreDragons dragon]]”. In the 1980s 11 fragmentary dinosaurs found in Japan in those years were unofficially named with this ending: "Fukuiryu", "Futabaryu", "Hironoryu", "Hishanohamaryu", "Kagaryu", "Katsuyamaryu", "Kitadaniryu", "Mifuneryu", "Moshiryu", "Sanchuryu", "Sugiyamaryu". Then all them were renamed with the classic suffix ''-saurus'', becoming "Fukuisaurus", "Futabasaurus", "Hironosaurus", "Hishanohamasaurus", "Kagasaurus", "Katsuyamasaurus", "Kitadanisaurus", "Mifunesaurus", "Moshisaurus", "Sanchusaurus", and "Sugiyamasaurus". Most of them are still not described yet and are thus ''Nomen nudum'' ("naked name"), and many are also ''Nomen dubium'' ("dubious name") -- the latter are those fossils that are too incomplete to be classified formally in the known zoological genuses.

# '''''syn-''''': Greek for “fused” or “united”. ''E.g.'' ''Synthetoceras''[[note]]“fused horn”[[/note]].

# '''''-onyx/-onychus''''': Greek for “nail” or “claw”. Theropods with one enlarged claw in their hand or foot have often these suffixes. ''E.g.'' ''Baryonyx'', ''Scipionyx'', ''Deinonychus'', ''Nothronychus''. Alvarezsaurid names end with the variant '''''-onykus''''': ''Mononykus''.

# '''''-hippus''''': Greek for “horse”. Almost every animal in the equid lineage ends in this way. ''E.g.'' ''Pliohippus'', ''Merychippus''. Some horse ancestors have this as a prefix: ''Hipparion'', ''Hippidion''.