Dexter and Blossom's Prehistoric Adventures

Dexter and Blossom's Prehistoric Adventures is a fifteenth-part science-fiction adventure animated miniseries that is the crossover of Dexter's Laboratory and the original Powerpuff Girls.

Plot
When the time portal to prehistoric worlds got invented, Dexter, Dee Dee and Beau team up with Blossom and her fellow Powerpuff Girls, as they travel through time to encounter dinosaurs, beasts and other prehistoric creatures.

Main Characters

 * Dexter
 * Blossom
 * Dee Dee
 * Beau (from Dexter's Lab episode, Beau Tie)
 * Bubbles
 * Buttercup
 * Bunny
 * Chester the Chinese crested dog
 * Bullet the eastern grey squirrel

Supporting Characters

 * Audrey (Dexter's mother)
 * Bob (Dexter's father)
 * Professor John Utonium
 * Ms. Sandra Keane-Utonium
 * Percy the African grey parrot
 * Valentino the tabby cat
 * Oceanbird
 * Windbear
 * Ms. Sara Bellum
 * Mee Mee
 * Lee Lee
 * Robin Synder
 * Mike Believe
 * Mitch Mitchelson
 * Douglas E. Mordecai III
 * Soyen Chen

Villians

 * Mandark
 * Princess Morbucks
 * Brick
 * Boomer
 * Butch
 * HIM

Animals in Episode 1: In the Beginning
Location: Western USA, 66 million years ago
 * Tyrannosaurus rex
 * Dakotaraptor steini
 * Acheroraptor temertyorum
 * Triceratops prorsus
 * Torosaurus latus
 * Alamosaurus sanjuanensis
 * Struthiomimus sedens
 * Edmontosaurus annectens
 * Augustynolophus morrisi
 * Ankylosaurus magniventris
 * Denversaurus schlessmani
 * Pachycephalosaurus wyomingensis
 * Thescelosaurus neglectus
 * Anzu wyliei
 * Unnamed alvarezsaurid
 * Leptoceratops gracilis
 * Quetzalcoatlus northropi
 * Avisaurus archibaldi
 * Purgatorius ceratops
 * Didelphodon vorax
 * Borealosuchus sternbergii
 * Adocus sp.
 * Basilemys sinuosa
 * Palaeosaniwa canadensis

Animals in Episode 2: Ice and Snow
Location: Eurasia, 100,000 years ago
 * Woolly Mammoth (Mammuthus primigenius)
 * Giant Unicorn Rhinoceros (Elasmotherium sibiricum)
 * Giant Deer (Megaloceros giganteus)
 * Eurasian Cave Lion (Panthera spelaea)
 * Cave Bear (Ursus spelaeus)
 * Saiga (Saiga tatarica)
 * Steppe Bison (Bison priscus)
 * Reindeer (Rangifer tarandus)
 * European Moose (Alces alces alces)
 * Tarpan (Equus ferus ferus)
 * Eurasian Wild Boar (Sus scrofa)
 * Eurasian Wolf (Canis lupus lupus)
 * Red Fox (Vulpes vulpes)
 * Cave Hyena (Crocuta spelaea)
 * Eurasian Lynx (Lynx lynx)
 * Wolverine (Gulo gulo)
 * Mountain Hare (Lepus timidus)
 * Eurasian Red Squirrel (Sciurus vulgaris)
 * Stoat (Mustela erminea)
 * Golden Eagle (Aquila chrysaetos)
 * Cinereous Vulture (Aegypius monachus)
 * Eurasian Eagle Owl (Bubo bubo)
 * Common Raven (Corvus corax)
 * Mallard (Anas platyrhynchos)
 * Western Capercaillie (Tetrao urogallus)
 * European Robin (Erithacus rubecula)

Animals in Episode 3: Seas of Monsters
Location: Western USA, 84.5 million years ago
 * Tylosaurus proriger
 * Styxosaurus snowii
 * Dolichorhynchops osborni
 * Protostega gigas
 * Platecarpus planifrons
 * Cretoxyrhina mantelli
 * Scapanorhynchus raphiodon
 * Squalicorax falcatus
 * Ptychodus mortoni
 * Xiphactinus audax
 * Gillicus arcuatus
 * Bananogmius evolutus
 * Protosphyraena perniciosa
 * Bonnerichthys gladius
 * Enchodus petrosus
 * Apsopelix angelicus
 * Tusoteuthis longa
 * Baculites vertebralis
 * Pteranodon longiceps
 * Nyctosaurus gracilis
 * Ichthyornis dispar
 * Parahesperornis alexi
 * Niobrarasaurus coleii
 * Claosaurus agilis
 * Unnamed tyrannosaurid

Animals in Episode 4: Land of the Sabertooth
Location: Western USA, 10,000 years ago
 * Saber-tooth Cat (Smilodon fatalis)
 * American Lion (Panthera atrox)
 * Mountain Lion (Puma concolor)
 * American Cheetah (Miracinonyx inexpectatus)
 * Bobcat (Lynx rufus)
 * Dire Wolf (Canis dirus)
 * Coyote (Canis latrans)
 * Short-faced Bear (Arctodus simus)
 * California Grizzly (Ursus arctos californicus)
 * Striped Skunk (Mephitis mephitis)
 * Ringtail (Bassariscus astutus)
 * Columbian Mammoth (Mammuthus columbi)
 * American Mastodon (Mammut americanum)
 * American Camel (Camelops hesternus)
 * Stilt-legged Llama (Hemiauchenia macrocephala)
 * Western Horse (Equus occidentalis)
 * California Tapir (Tapirus californicus)
 * Ancient Bison (Bison antiquus)
 * Mule Deer (Odocoileus hemionus)
 * Merriam's Elk (Cervus canadensis merriami)
 * Dwarf Pronghorn (Capromeryx minor)
 * Common Pronghorn (Antilocapra americana)
 * Flat-headed Peccary (Platygonus compressus)
 * Jefferson's Ground Sloth (Megalonyx jeffersonii)
 * American Glyptodont (Glyptotherium arizonae)
 * Black-tailed Jackrabbit (Lepus californicus)
 * California Ground Squirrel (Otospermophilus beecheyi)
 * Imperfect Mouse (Peromyscus imperfectus)
 * Merriam's Teratorn (Teratornis merriami)
 * La Brea Condor (Breagyps clarki)
 * Turkey Vulture (Cathartes aura)
 * Bald Eagle (Haliaeetus leucocephalus)
 * Daggett's Eagle (Buteogallus daggetti)
 * Red-tailed Hawk (Buteo jamaicensis)
 * Brea Owl (Oraristrix brea)
 * La Brea Stork (Ciconia maltha)
 * Brea Crane (Grus pagei)
 * California Flamingo (Phoenicopterus minutus)
 * California Turkey (Meleagris californica)
 * California Quail (Callipepla californica)
 * Canada Goose (Branta canadensis)
 * Canvasback (Aythya valisineria)
 * American Crow (Corvus brachyrhynchos)
 * Caifornia Scrub Jay (Aphelocoma californica)
 * Black-throated Sparrow (Amphispiza bilineata)
 * Northern Flicker (Colaptes auratus)
 * Mourning Dove (Zenaida macroura)
 * Southern Pacific Rattlesnake (Crotalus oreganus helleri)
 * Western Pond Turtle (Actinemys marmorata)

Animals in Episode 5: Feathered Forest
Location: China, 124 million years ago
 * Yutyrannus huali
 * Sinornithosaurus millenii
 * Mei long
 * Zhenyuanlong suni
 * Zhongjianosaurus yangi
 * Liaoningvenator curriei
 * Dongbeititan dongi
 * Incisivosaurus gauthieri
 * Caudipteryx zoui
 * Sinosauropteryx prima
 * Psittacosaurus lujiatunensis
 * Jeholosaurus shangyuanensis
 * Beipiaosaurus inexpectus
 * Confuciusornis sanctus
 * Changchengornis hengdaoziensis
 * Jixiangornis orientalis
 * Shanweiniao cooperorum
 * Eoenantiornis buhleri
 * Liaoningornis longidigitris
 * Shenzhousaurus orientalis
 * Bolong yixianensis
 * Liaoningosaurus paradoxus
 * Dilong paradoxus
 * Boreopterus cuiae
 * Ningchengopterus liuae
 * Repenomamus giganticus
 * Eomaia scansoria
 * Xianglong zhaoi

Animals in Episode 6: Bug World
Location: Europe, 300 million years ago
 * Meganeura monyi
 * Arthropleura armata
 * Aphthoroblattina johnsoni
 * Gerarus mazonis
 * Rhizodus sp.
 * Anthracosaurus russelli

Animals in Episode 7: Down Under
Location: Australia, 100,000 years ago
 * Giant Short-faced Kangaroo (Procoptodon goliah)
 * Protemnodon roechus
 * Giant Wombat (Diprotodon optatum)
 * Marsupial Tapir (Palorchestes azael)
 * Giant Koala (Phascolarctos stirtoni)
 * Marsupial Lion (Thylacoleo carnifex)
 * Thylacine (Thylacinus cynocephalus)
 * Megalibgwilia ramsayi
 * Genyornis newtoni
 * Wedge-tailed Eagle (Aquila audax)
 * Sulphur-crested Cockatoo (Cacatua galerita)
 * Leipoa gallinacea
 * Megalania (Varanus priscus)
 * Quinkana fortirostrum
 * Wonambi naracoortensis

Animals in Episode 8: Super Gatorland
Location: Western USA, 75 million years ago
 * Deinosuchus riograndensis
 * Saurornitholestes sullivani
 * Daspletosaurus horneri
 * Parasaurolophus walkeri
 * Angulomastacator daviesi
 * Agujaceratops mariscalensis
 * Edmontonia rugosidens
 * Texacephale langstoni
 * Alphadon marshii

Animals in Episode 9: Sandstorm
Location: Mongolia, 75-70 million years ago
 * Velociraptor mongoliensis
 * Byronosaurus jaffei
 * Zanabazar junior
 * Adasaurus mongoliensis
 * Citipati osmolskae
 * Khaan mckennai
 * Nemegtomaia barsboldi
 * Avimimus portentosus
 * Shuvuuia deserti
 * Mononykus olecranus
 * Halszkaraptor escuilliei
 * Teviornis gobiensis
 * Brodavis mongoliensis
 * Gallimimus bullatus
 * Deinocheirus mirificus
 * Therizinosaurus cheloniformis
 * Tarbosaurus bataar
 * Alioramus altai
 * Protoceratops andrewsi
 * Pinacosaurus grangeri
 * Saichania chulsanensis
 * Plesiohadros djadoktaensis
 * Saurolophus angustirostris
 * Prenocephale prenes
 * Nemegtosaurus mongoliensis
 * Gobipteryx minuta
 * Unnamed azhdarchid
 * Telmasaurus grangeri
 * Zalambdalestes lechei
 * Deltatheridium pretrituberculare
 * Buginbaatar transaltaiensis

Animals in Episode 10: The Giant Delta
Location: North Africa, 99 million years ago
 * Spinosaurus aegyptiacus
 * Carcharodontosaurus saharicus
 * Alanqa saharica
 * Rebbachisaurus garasbae
 * Elosuchus cherifiensis
 * Stomatosuchus inermis
 * Onchopristis dunklei
 * Mawsonia gigas

Animals in Episode 11: Amphibian Swamp
Location: Western USA, 295 million years ago
 * Dimetrodon grandis
 * Edaphosaurus pogonias
 * Cotylorhynchus romeri
 * Sphenacodon ferox
 * Ophiacodon mirus
 * Diplocaulus salamandroides
 * Limnoscelis paludis
 * Diadectes sideropelicus
 * Eryops megacephalus
 * Platyhystrix rugosus
 * Seymouria sanjuanensis
 * Orthacanthus texensis

Animals in Episode 12: Monster Whale
Location: Peru, 9 million years ago
 * Livyatan melvillei
 * Acrophyseter robustus
 * Odobenocetops leptodon
 * Hemisyntrachelus oligodon
 * Brachydelphis mazeasi
 * Balaenoptera siberi
 * Incakujira anillodefuego
 * Acrophoca longirostris
 * Piscophoca pacifica
 * Marine Sloth (Thalassocnus antiquus)
 * Spheniscus urbinai
 * Sula brandi
 * Pelagornis sandersi
 * Piscogavialis jugaliperforatus
 * Pacifichelys urbinai
 * Megalodon (Carcharocles megalodon)
 * Shortfin Mako Shark (Isurus oxyrinchus)

Animals in Episode 13: Jurassic All-Stars
Location: Western USA, 151 million years ago
 * Allosaurus fragilis
 * Ceratosaurus magnicornis
 * Diplodocus longus
 * Apatosaurus ajax
 * Camarasaurus supremus
 * Brachiosaurus altithorax
 * Stegosaurus stenops
 * Hesperosaurus mjosi
 * Dryosaurus altus
 * Mymoorapelta maysi
 * Gargoyleosaurus parkpinorum
 * Torvosaurus tanneri
 * Ornitholestes hermanni
 * Camptosaurus dispar
 * Tanycolagreus topwilsoni
 * Stokesosaurus clevelandi
 * Harpactognathus gentryii
 * Fruitafossor windscheffeli
 * Amphicotylus gilmorei
 * Hallopus victor

Animals in Episodes 14 and 15: Back from Extinction, Parts 1 and 2
Location: Townsville, Present Day
 * Toolache Wallaby (Macropus greyi)
 * Pig-footed Bandicoot (Chaeropus ecaudatus)
 * Riversleigh Platypus (Obdurodon dicksoni)
 * Atlas Bear (Ursus arctos crowtheri)
 * Dwarf Panda (Ailuropoda microta)
 * Tyrant Polar Bear (Ursus maritimus tyrannus)
 * Caspian Tiger (Panthera tigris virgata)
 * Giant Jaguar (Panthera augusta)
 * Barbary Lion (Panthera leo leo)
 * Scimitar Cat (Homotherium serum)
 * Giant Cheetah (Acinonyx pardinensis)
 * Lynx issiodorensis
 * Pseudaelurus transitorius
 * Nimravus brachyops
 * Dinocrocuta gigantea
 * Chasmaporthetes ossifragus
 * Ekorus ekakeran
 * Sea Mink (Neovison macrodon)
 * Chamitataxus avitus
 * Japanese River Otter (Lutra whiteleyi)
 * Siamogale melilutra
 * Miacis parvivorus
 * Viverra leakeyi
 * Giant Fossa (Cryptoprocta spelea)
 * Chapalmalania altaefrontis
 * Barbados Raccoon (Procyon lotor gloveralleni)
 * Warrah (Dusicyon australis)
 * Vulpes qiuzhudingi
 * Florida Black Wolf (Canis lupus floridanus)
 * Japanese Wolf (Canis lupus hodophilax)
 * Borophagus diversidens
 * Hesperocyon gregarius
 * Caribbean Monk Seal (Neomonachus tropicalis)
 * Japanese Sea Lion (Zalophus japonicus)
 * Pontolis magnus
 * Hyaenodon gigas
 * Thylacosmilus atrox
 * American Bear-dog (Amphicyon major)
 * Sarkastodon mongoliensis
 * Quagga (Equus quagga quagga)
 * Hagerman Horse (Equus simplicidens)
 * Hipparion laromae
 * Eohippus angustidens
 * Western Black Rhinoceros (Diceros bicornis longipes)
 * Paraceratherium bugtiense
 * Embolotherium andrewsi
 * Chalicotherium goldfussi
 * Moropus distans
 * Uintatherium anceps
 * Macrauchenia patachonica
 * Arsinoitherium zitteli
 * Toxodon platensis
 * Aurochs (Bos primigenius)
 * Long-horned Bison (Bison latifrons)
 * Pelorovis antiquus
 * Bluebuck (Hippotragus leucophaeus)
 * Bubal Hartebeest (Alcelaphus buselaphus buselaphus)
 * Ancient Wildebeest (Rusingoryx atopocranion)
 * Megalotragus kattwinkeli
 * Saudi Gazelle (Gazella saudiya)
 * Synthetoceras tricornatus
 * Pyrenean Ibex (Capra pyrenaica pyrenaica)
 * Cave Goat (Myotragus balearicus)
 * Badlands Bighorn (Ovis canadensis auduboni)
 * Woodox (Bootherium bombifrons)
 * Giant Giraffe (Giraffa jumae)
 * Asian Sivathere (Sivatherium giganteum)
 * Climacoceras africanus
 * Titanotylopus spatulus
 * Aepycamelus giraffinus
 * Giant Hippopotamus (Hippopotamus gorgops)
 * Malagasy Dwarf Hippopotamus (Hippopotamus lemerlei)
 * Giant Warthog (Metridiochoerus andrewsi)
 * Daeodon shoshonensis
 * Archaeotherium mortoni
 * Andrewsarchus mongoliensis
 * Schomburgk's Deer (Rucervus schomburgki)
 * Eastern Elk (Cervus canadensis canadensis)
 * Stag-moose (Cervalces scotti)
 * North African Elephant (Loxodonta pharaohensis)
 * Straight-tusked Elephant (Palaeoloxodon antiquus)
 * Pygmy Elephant (Palaeoloxodon falconeri)
 * Deinotherium bozasi
 * Platybelodon danovi
 * Moeritherium andrewsi
 * Giant Ape (Gigantopithecus blacki)
 * Giant Baboon (Dinopithecus ingens)
 * Mesopithecus pentelici
 * Giant Lemur (Archaeoindris fontoynontii)
 * Archaeolemur edwardsi
 * Sloth Lemur (Palaeopropithecus ingens)
 * Koala Lemur (Megaladapis edwardsi)
 * Giant Aye-aye (Daubentonia robusta)
 * Darwinius masillae
 * Giant Beaver (Castoroides ohioensis)
 * Giant Rat (Coryphomys musseri)
 * Bramble Cay Melomys (Melomys rubicola)
 * Martinique Muskrat (Megalomys desmarestii)
 * Horned Gopher (Ceratogaulus hatcheri)
 * Josephoartigasia monesi
 * Xenohystrix crassidens‭
 * Minorcan Giant Rabbit (Nuralagus rex)
 * Palaeolagus haydeni
 * Icaronycteris index
 * Giant Vampire Bat (Desmodus draculae)
 * Beautiful Armadillo (Dasypus bellus)
 * Peltephilus ferox
 * Doedicurus clavicaudatus
 * Florida Ground Sloth (Eremotherium laurillardi)
 * Orycteropus crassidens
 * Eomanis waldi
 * Eurotamandua joresi
 * Kopidodon macrognathus
 * Leptictidium auderiense
 * Deinogalerix masinii
 * Necrolestes patagonensis
 * Barylambda faberi
 * Cronopio dentiacutus
 * Volaticotherium antiquum
 * Castorocauda lutrasimilis
 * Steller's Sea Cow (Hydrodamalis gigas)
 * Baiji (Lipotes vexillifer)
 * Semirostrum ceruttii
 * Kentriodon pernix
 * Basilosaurus isis
 * Cetotherium riabinini
 * Pakicetus inachus
 * Inostrancevia alexandri
 * Cynognathus crateronotus
 * Diictodon feliceps
 * Dodo (Raphus cucullatus)
 * Passenger Pigeon (Ectopistes migratorius)
 * Huia (Heteralocha acutirostris)
 * Stephen Island Wren (Traversia lyalli)
 * Chatman Island Raven (Corvus moriorum)
 * Oahu Thrush (Myadestes woahensis)
 * Greater Koa Finch (Rhodacanthis palmeri)
 * Black Mamo (Drepanis funerea)
 * Oʻahu ʻōʻō (Moho apicalis)
 * Cuban Ivory-billed Woodpecker (Campephilus principalis bairdii)
 * Saint Helena Hoopoe (Upupa antaios)
 * Carolina Parakeet (Conuropsis carolinensis)
 * Cuban Red Macaw (Ara tricolor)
 * Messelastur gratulator
 * Great Auk (Pinguinus impennis)
 * New Zealand Giant Penguin (Kairuku waitaki)
 * Inkayacu paracasensis
 * Labrador Duck (Camptorhynchus labradorius)
 * Vegavis iaai
 * Giant Swan (Cygnus falconeri)
 * Turtle-jawed Moa-nalo (Chelychelynechen quassus)
 * Presbyornis pervetus
 * Spectacled Cormorant (Phalacrocorax perspicillatus)
 * White Gallinule (Porphyrio albus)
 * Sylviornis neocaledoniae
 * Heath Hen (Tympanuchus cupido cupido)
 * Pavo bravardi
 * Giant Stork (Leptoptilos robustus)
 * Jamaican Ibis (Xenicibis xympithecus)
 * Bennu Heron (Ardea bennuides)
 * Zeltornis ginsburgi
 * Cuban Giant Owl (Ornimegalonyx oteroi)
 * Laughing Owl (Sceloglaux albifacies)
 * Giant Barn Owl (Tyto gigantea)
 * Haast's Eagle (Harpagornis moorei)
 * Guadalupe Caracara (Caracara lutosa)
 * Réunion Kestrel (Falco duboisi)
 * Gastornis geiselensis
 * Titanis walleri
 * Kelenken guillermoi
 * North Island Giant Moa (Dinornis novaezealandiae)
 * Elephant Bird (Aepyornis maximus)
 * Arabian Ostrich (Struthio camelus syriacus)
 * Gould's Emerald (Chlorostilbon elegans)
 * Archaeopteryx lithographica
 * Carnotaurus sastrei
 * Giganotosaurus carolinii
 * Acrocanthosaurus atokensis
 * Concavenator corcovatus
 * Gorgosaurus libratus
 * Qianzhousaurus sinensis
 * Cryolophosaurus ellioti
 * Baryonyx walkeri
 * Latenivenatrix mcmasterae
 * Utahraptor ostrommaysorum
 * Austroraptor cabazai
 * Pelecanimimus polyodon
 * Eoraptor lunensis
 * Herrerasaurus ischigualastensis
 * Dilophosaurus wetherilli
 * Guanlong wucaii
 * Yi qi
 * Anchiornis huxleyi
 * Caihong juji
 * Compsognathus longipes
 * Gigantoraptor erlianensis
 * Pachyrhinosaurus canadensis
 * Styracosaurus albertensis
 * Nasutoceratops titusi
 * Lambeosaurus lambei
 * Maiasaura peeblesorum
 * Olorotitan arharensis 
 * Saltasaurus loricatus
 * Amargasaurus cazaui
 * Dreadnoughtus schrani
 * Shunosaurus lii
 * Plateosaurus engelhardti
 * Iguanodon bernissartensis
 * Muttaburrasaurus langdoni
 * Miragaia longicollum
 * Wuerhosaurus homheni
 * Pegomastax africanus
 * Sauropelta edwardsorum
 * Alaskacephale gangloffi
 * Leaellynasaura amicagraphica
 * Kulindadromeus zabaikalicus
 * Chilesaurus diegosuarezi
 * Tupuxuara longicristatus
 * Tropeognathus mesembrinus
 * Pterodaustro guinazui
 * Ludodactylus sibbicki
 * Darwinopterus modularis
 * Rhamphorhynchus muensteri
 * Anurognathus ammoni
 * Horned Crocodile (Voay robustus)
 * Boar-croc (Kaprosuchus saharicus)
 * Postosuchus kirkpatricki
 * Arizonasaurus babbitti
 * Metriorhynchus geoffroyii
 * Dakosaurus maximus
 * Kawekaweau (Hoplodactylus delcourti)
 * Cretaceogekko burmae
 * Giant Iguana (Barbaturex morrisoni)
 * Jamacian Giant Galliwasp (Celestus occiduus)
 * Dallasaurus turneri
 * Pinta Island Tortoise (Chelonoidis abingdonii)
 * Saddle-backed Rodrigues Giant Tortoise (Cylindraspis vosmaeri)
 * Carbonemys cofrinii
 * Stupendemys geographicus
 * Meiolania platyceps
 * Proganochelys quenstedti
 * Giant Anaconda (Titanoboa cerrejonensis)
 * Round Island Burrowing Boa (Bolyeria multocarinata)
 * Laophis crotaloides
 * Northern Tuatara (Sphenodon punctatus)
 * Longisquama insignis
 * Drepanosaurus unguicaudatus
 * Shringasaurus indicus
 * Predator X (Pliosaurus funkeri)
 * Kronosaurus queenslandicus
 * Ophthalmosaurus icenicus
 * Nothosaurus mirabilis
 * Atopodentatus unicus
 * Tanystropheus longobardicus
 * Psephoderma alpinum
 * Golden Toad (Bufo periglenes)
 * Devil Frog (Beelzebufo ampinga)
 * Koolasuchus cleelandi
 * Mastodonsaurus jaegeri
 * Prionosuchus plummeri
 * Ichthyostega stensioei
 * Dunkleosteus terrelli
 * Asterotrygon maloneyi
 * Leedsichthys problematicus
 * Orthacanthus arcuatus
 * Hybodus hauffianus
 * Stethacanthus altonensis
 * Helicoprion bessonowi
 * West Indian Ocean Coelacanth (Latimeria chalumnae)
 * Giant Piranha (Megapiranha paranensis)
 * Saber-tooth Salmon (Oncorhynchus rastrosus)
 * Cephalaspis lyelli
 * Tiktaalik roseae
 * Rocky Mountain Locust (Melanoplus spretus)
 * Xerces Blue (Glaucopsyche xerces)
 * Giant Ant (Titanomyrma giganteum)
 * Brontoscorpio anglicus
 * Arthrolycosa antiqua
 * Atlantic Horseshoe Crab (Limulus polyphemus)
 * Pterygotus anglicus
 * Jaekelopterus rhenaniae
 * Anomalocaris canadensis
 * Isotelus rex
 * Perisphinctes boweni
 * Cameroceras trentonense
 * Pikaia gracilens

Voice Cast

 * Candi Milo - Dexter
 * Cathy Cavadini - Blossom
 * Kathryn Cressida - Dee Dee
 * Pamela Adlon - Beau, Male Purgatorius
 * Tara Strong - Bubbles, Dakotaraptor Chick
 * Elizabeth Daily - Buttercup
 * Nancy Cartwright - Bunny
 * Hynden Walch - Bullet
 * Andy Dick - Chester
 * Kath Soucie - Audrey (Dexter's mother), Oceanbird, Lee Lee, Female Citipati
 * Jeff Bennett - Bob (Dexter's father), Windbear, Megaloceros Stag, Male Sinornithosaurus
 * Tom Kane - Professor John Utonium, HIM, Male Arthropleura
 * Jennifer Hale - Ms. Sandra Keane-Utonium, Princess Morbucks, Female Tyrannosaurus, Megaloceros Doe #1, Female Stegosaurus
 * Billy West - Percy, Male Parasaurolophus
 * Samuel Vincent - Valentino
 * Jennifer Martin - Ms. Sara Bellum
 * Kimberly Brooks - Mee Mee
 * Julie Nathanson - Robin Snyder
 * Max Charles - Mike Believe
 * Tom Kenny - Mitch Mitchelson, Douglas E. Mordecai III, Male Pteranodon, Male Psittacosaurus
 * Lauren Tom - Soyen Chen, Female Alphadon
 * James Woods - Male Tyrannosaurus
 * Grey DeLisle - Female Dakotaraptor, Female Parasaurolophus, Female Spinosaurus, Female Megalodon
 * Brenda Vaccaro - Female Triceratops
 * Phil LaMarr - Male Quetzalcoatlus
 * Tabitha St. Germain - Matriarch Woolly Mammoth
 * Jenny Slate - Megaloceros Doe #2
 * Steve Blum - Male Eurasian Cave Lion
 * Danny Jacobs - Male Red Fox
 * Maurice LaMarche - Male Tylosaurus
 * Mark Hamill - Male Saber-tooth Cat
 * Frank Welker - Alpha Dire Wolf
 * Mindy Sterling - Female Yutyrannus
 * John DiMaggio - Male Megalania
 * James Arnold Taylor - Male Thylacine #1
 * Dana Snyder - Male Thylacine #2
 * Daran Norris - Male Deinosuchus, Male Torvosaurus
 * Kevin Thoms - Male Velociraptor
 * Ashley Johnson - Female Velociraptor
 * Jeff Bergman - Male Halszkaraptor
 * ​​​​​​​Bill Farmer - Male Deinocheirus
 * Jim Cummings - Male Carcharodontosaurus
 * Keith Ferguson - Male Diplocaulus
 * Tress MacNeille - Female Dimetrodon
 * Kevin Michael Richardson - Male Allosaurus
 * Khary Payton - Male Brachiosaurus
 * Alan Tudyk - Male Carnotaurus
 * Dee Bradley Baker - Male Dodo
 * Linda Cardellini - Female Paraceratherium
 * Eddie Deezen - Mandark
 * Rob Paulsen - Brick, Boomer, Male Confuciusornis
 * Roger Jackson - Butch

Trivia

 * Beau was originally an one shot character, but his character was developed and became Dee Dee's love interest. Bullet, Robin, Mike and Soyen were also originally one shot characters.
 * The animals in Back from Extinction came from different locations from the time portal. The same multi-part episode also features animals from previous episodes.
 * All dinosaurs and other prehistoric creatures had modern accurate features, such as feathered maniraptors and quadrupedal pterosaurs.
 * The animation in this series is a lot more smoother and fluid than the original shows.
 * Most of the animals can talk to one another, but not to humans. Expect for Bubbles, who has an ability to talk to them.