In addition to the Phantasy Prehistorium thread on fictional stuff for a prehistoric campaign setting world called Nym, other posted creature stats will be refined here for a full-spectrum of a prehistoric ecology. This forum will be for reviewing, revising, and statting prehistoric animals and dinosaurs of our real-world history, primarily based on popular scientific knowledge about them.
Okay, one thing I want to start with is how I will be organizing it, so that we don't get the priorities wrong. I understand that in our own history these creatures occurred in particular epochs, but that is actually not the primary way I will be organizing, although that information is nonetheless helpful for creature statistics as they will be finalized for writing (a comprehensive pdf file of OGL and non-OGL content, and potential publication and web media) including those stats.
So here's a suggestion: write the era/epoch (named) if you wish, but specifically the range numbers of years BCE the creature existed on earth, right at the top somewhere below the name. If you wish, call the stat, 'Epoch:' or 'BCE:' and everyone else will have to copy you because you will have made a decision I am not willing to make.
The only decision I have made in this regard is that I will be organizing them as a list of ecology tables, such as the ones in the DMG, pp. 96-98, organized by environment, CR, and regional percentage - in addition, they will each have a region map in their final published stats, and many will have celestial, anarchic, and/or axiomatic versions of them. There will be lots of pretty pictures - is the hope.... Even if I have to all of them myself by hand.... Ok, computer.
-will
The current index:
Acanthostega
Acrocanthosaurus
Acrocanthosaurus ver. 2
Aepycamelus (formerly Alticamelus)
Ambulocetus
Amebelodon
Ammonite
Amphicyon
Anancus
Anatotitan
Anatotitan ver. 2
Anchisaurus
Anchisaurus ver. 2
Andrewsarchus
Anhanguera
Ankylosaurus
Anomalocaris
Anoplotops Ferox
Apatosaurus
Archaeoceratops
Archaeopteryx
Arctognathus
Argentavis
Argentinosaurus
Arthropleura
Auroch
Avimimus
Baiji
Bambiraptor
Baryonyx
Basilosaurus
Beelzebufo
Beipiaosaurus
Belemnite
Bellusaurus
Brachiosaurus
Brachiosaurus ver. 2
Brontornis
Brontotherium
Cacops
Camarasaurus
Camptosaurus
Carcharodontosaurus
Carnotaurus
Carnotaurus ver. 2
Castoroides
Castoroides ver. 2
Cave Hyena
Centrosaurus
Ceratosaurus
Cetiosaurus
Charonosaurus
Clidastes
Clidastes ver. 2
Coelacanth
Coelodonta
Coelophysis
Coelurus
Compsognathus
Cretoxyrhina
Cynodont, Tiny
Cynodont, Small
Cynodont, Medium
Cynognathus
Dacentrurus
Daeodon
Dakosaurus
Daspletosaurus
Deinogalerix
Deinosuchus
Deinosuchus ver. 2
Deinotherium
Desmatosuchus
Diademodon
Dicynodon
Diictodon
Diplocaulus
Dilophosaurus
Dilophosaurus ver. 2
Dimetrodon
Dimetrodon ver. 2
Dimorphodon
Dinichthys
Dinichthys ver. 2
Dinornis
Dire Owl (Tyto Gigantea)
Dodo
Dodo ver. 2
Doedicurus
Dromornis
Echinochimaera
Edaphosaurus
Edmontosaurus
Ekaltadeta
Elasmotherium
Eogyrinus
Eogyrinus ver. 2
Epanterias
Epigaulus
Eryops
Eryops ver. 2
Eryops ver. 3
Erythrosuchus
Eshanosaurus
Estemmenosuchus
Estemmenosuchus ver. 2
Euchambersia
Euchambersia ver. 2
Euparkeria
Eurypterid
Eustreptospondylus
Exaeretodon
Gasosaurus
Gerrothorax
Giant Eurypterid
Giant Orthocone
Giant Titanoboa
Giganotosaurus
Giganotosaurus ver. 2
Gigantopithecus
Gigantoraptor
Giraffatitan
Gomphotherium (Shovel-Tusker)
Gorgosaurus
Gorgosaurus ver. 2
Hallucigenia
Halticosaurus
Hatzegopteryx
Helicoprion
Herrerasaurus
Hippopotamus Gorgops
Huayangosaurus
Hyaenodon
Hypsilophodon
Hypsilophodon ver. 2
Hyracotherium
Icthyosaurus
Iguanodon
Iguanodont
Inostrancevia
Inostrancevia ver. 2
Kannemeyeria
Kentrosaurus
Kentrosaurus
Keratocephalus
Kolponomos
Koolasuchus
Kronosaurus
Kronosaurus ver. 2
Kronosaurus ver. 3
Lambeosaurus
Leedsichthys
Leptictidium
Lexovisaurus
Liopleurodon
Little Bush Moa
Lycaenops
Lycaenops ver. 2
Lycognathus
Lystrosaurus
Maiasaura
Mamenchisaurus
Mamenchisaurus ver. 2
Mammoth
Mapusaurus
Masiakasaurus
Massospondylus
Mastodonsaurus
Megalania
Megalania Prisca
Megaloceros
Megalosaurus
Megantereon
Meiolania
Mesosaurus
Microceratus Queen
Microceratus Sentry/Breeder
Microceratus Worker
Micropachycephalosaurus
Microraptor
Monoclonius
Mononykus
Moropus
Mosasaurus
Moschops
Moschops ver. 2
Neanderthal
Nodosaur, Large
Nodosaur, Huge
Nothosaurus
Nothosaurus ver. 2
Ophiacodon
Ophiacodon, Advanced
Ornimegalonyx
Ornitholestes
Ornitholestes ver. 2
Ornithomimus
Ornithomimus ver. 2
Ornithosuchus
Ouranosaurus
Oviraptor
Pachycephalosaurus
Pachyrhinosaurus
Panoplosaurus
Paracyclotosaurus
Parasaurolophos
Pawpawsaurus
Pelorovis
Pentaceratops
Phorusrhacos
Piatnitzkysaurus
Pinacosaurus
Placerias
Placerias ver. 2
Placerias ver. 3
Plateosaurus
Plateosaurus ver. 2
Platyhystrix
Postosuchus
Prenocephale
Priscileo
Procoptodon
Prosaurolophus
Protoceratops
Psittacosaurus
Pteranodon
Pteranodon ver. 2
Pterodactylus
Pyrenean Ibex
Quetzalcoatlus
Repenomamus
Rhynchosaur
Robertia
Saltasaurus
Saurolophus
Scelidosaurus
Scutellosaurus
Scutosaurus
Segnosaurus
Shantungosaurus
Shonisaurus
Shonisaurus
Shunosaurus
Shuvuuia
Simosuchus
Sinocalliopteryx
Sinornithosaurus
Sinraptor
Sivatherium
Smilodon
Smilodon ver. 2
Sphenacodon
Spinosaurus
Spinosaurus ver. 2
Stagonolepis
Stegosaurus
Steller's Sea Cow
Stethacanthus
Stokesosaurus
Stomatosuchus
Struthiomimus
Struthiosaurus
Stygimoloch
Styracosaurus
Styracosaurus ver. 2
Styracosaurus ver. 3
Suchomimus
"Super Predator" (Carcharodontosaurus, Giganotosaurus, Saurophaganax, Tyrannosaurus Baatar, Tyrannosaurus Rex)
Tanaconda
Tanystropheus
Tanystropheus ver. 2
Tanystropheus ver. 3
Tapejara
Teleosaurus
Temnodontosaurus
Teratosaurus
Terrestrisuchus
Thalattosaurus
Therizinosaurus
Therizinosaurus ver. 2
Therizinosaurus ver. 3
Thylacine
Thylacoleo
Thylacoleo
Thylacosmilus
Tiktaalik
Titanosaurus
Titanosuchus
Titanosuchus ver. 2
Torosaurus
Torvosaurus
Troodon
Tsintaosaurus
Tullimonstrum
Tyrannosaurus Rex
Tyrannosaurus Rex ver. 2
Uintatherium
Uintatherium ver. 2
Utahraptor
Utahraptor ver. 2
Velociraptor
Venatraraptor
Vulcanodon
Wakaleo
Xiaosaurus
Xiphactinus
Yangchuanosaurus
Zuniceratops
Skills
Scent Tracking (Survival)
Feats
Confusing Trail
Foe of the Scaled
Gnash
Greater Toughness
Horrific Roar
Impenetrable Natural Armor
Prehistoric Affinity
Primal Spell
Primal Yell
Primeval Druid
Primeval Shape
Slay the Gigantic
Okay, one thing I want to start with is how I will be organizing it, so that we don't get the priorities wrong. I understand that in our own history these creatures occurred in particular epochs, but that is actually not the primary way I will be organizing, although that information is nonetheless helpful for creature statistics as they will be finalized for writing (a comprehensive pdf file of OGL and non-OGL content, and potential publication and web media) including those stats.
So here's a suggestion: write the era/epoch (named) if you wish, but specifically the range numbers of years BCE the creature existed on earth, right at the top somewhere below the name. If you wish, call the stat, 'Epoch:' or 'BCE:' and everyone else will have to copy you because you will have made a decision I am not willing to make.
The only decision I have made in this regard is that I will be organizing them as a list of ecology tables, such as the ones in the DMG, pp. 96-98, organized by environment, CR, and regional percentage - in addition, they will each have a region map in their final published stats, and many will have celestial, anarchic, and/or axiomatic versions of them. There will be lots of pretty pictures - is the hope.... Even if I have to all of them myself by hand.... Ok, computer.

-will
The current index:
Acanthostega
Acrocanthosaurus
Acrocanthosaurus ver. 2
Aepycamelus (formerly Alticamelus)
Ambulocetus
Amebelodon
Ammonite
Amphicyon
Anancus
Anatotitan
Anatotitan ver. 2
Anchisaurus
Anchisaurus ver. 2
Andrewsarchus
Anhanguera
Ankylosaurus
Anomalocaris
Anoplotops Ferox
Apatosaurus
Archaeoceratops
Archaeopteryx
Arctognathus
Argentavis
Argentinosaurus
Arthropleura
Auroch
Avimimus
Baiji
Bambiraptor
Baryonyx
Basilosaurus
Beelzebufo
Beipiaosaurus
Belemnite
Bellusaurus
Brachiosaurus
Brachiosaurus ver. 2
Brontornis
Brontotherium
Cacops
Camarasaurus
Camptosaurus
Carcharodontosaurus
Carnotaurus
Carnotaurus ver. 2
Castoroides
Castoroides ver. 2
Cave Hyena
Centrosaurus
Ceratosaurus
Cetiosaurus
Charonosaurus
Clidastes
Clidastes ver. 2
Coelacanth
Coelodonta
Coelophysis
Coelurus
Compsognathus
Cretoxyrhina
Cynodont, Tiny
Cynodont, Small
Cynodont, Medium
Cynognathus
Dacentrurus
Daeodon
Dakosaurus
Daspletosaurus
Deinogalerix
Deinosuchus
Deinosuchus ver. 2
Deinotherium
Desmatosuchus
Diademodon
Dicynodon
Diictodon
Diplocaulus
Dilophosaurus
Dilophosaurus ver. 2
Dimetrodon
Dimetrodon ver. 2
Dimorphodon
Dinichthys
Dinichthys ver. 2
Dinornis
Dire Owl (Tyto Gigantea)
Dodo
Dodo ver. 2
Doedicurus
Dromornis
Echinochimaera
Edaphosaurus
Edmontosaurus
Ekaltadeta
Elasmotherium
Eogyrinus
Eogyrinus ver. 2
Epanterias
Epigaulus
Eryops
Eryops ver. 2
Eryops ver. 3
Erythrosuchus
Eshanosaurus
Estemmenosuchus
Estemmenosuchus ver. 2
Euchambersia
Euchambersia ver. 2
Euparkeria
Eurypterid
Eustreptospondylus
Exaeretodon
Gasosaurus
Gerrothorax
Giant Eurypterid
Giant Orthocone
Giant Titanoboa
Giganotosaurus
Giganotosaurus ver. 2
Gigantopithecus
Gigantoraptor
Giraffatitan
Gomphotherium (Shovel-Tusker)
Gorgosaurus
Gorgosaurus ver. 2
Hallucigenia
Halticosaurus
Hatzegopteryx
Helicoprion
Herrerasaurus
Hippopotamus Gorgops
Huayangosaurus
Hyaenodon
Hypsilophodon
Hypsilophodon ver. 2
Hyracotherium
Icthyosaurus
Iguanodon
Iguanodont
Inostrancevia
Inostrancevia ver. 2
Kannemeyeria
Kentrosaurus
Kentrosaurus
Keratocephalus
Kolponomos
Koolasuchus
Kronosaurus
Kronosaurus ver. 2
Kronosaurus ver. 3
Lambeosaurus
Leedsichthys
Leptictidium
Lexovisaurus
Liopleurodon
Little Bush Moa
Lycaenops
Lycaenops ver. 2
Lycognathus
Lystrosaurus
Maiasaura
Mamenchisaurus
Mamenchisaurus ver. 2
Mammoth
Mapusaurus
Masiakasaurus
Massospondylus
Mastodonsaurus
Megalania
Megalania Prisca
Megaloceros
Megalosaurus
Megantereon
Meiolania
Mesosaurus
Microceratus Queen
Microceratus Sentry/Breeder
Microceratus Worker
Micropachycephalosaurus
Microraptor
Monoclonius
Mononykus
Moropus
Mosasaurus
Moschops
Moschops ver. 2
Neanderthal
Nodosaur, Large
Nodosaur, Huge
Nothosaurus
Nothosaurus ver. 2
Ophiacodon
Ophiacodon, Advanced
Ornimegalonyx
Ornitholestes
Ornitholestes ver. 2
Ornithomimus
Ornithomimus ver. 2
Ornithosuchus
Ouranosaurus
Oviraptor
Pachycephalosaurus
Pachyrhinosaurus
Panoplosaurus
Paracyclotosaurus
Parasaurolophos
Pawpawsaurus
Pelorovis
Pentaceratops
Phorusrhacos
Piatnitzkysaurus
Pinacosaurus
Placerias
Placerias ver. 2
Placerias ver. 3
Plateosaurus
Plateosaurus ver. 2
Platyhystrix
Postosuchus
Prenocephale
Priscileo
Procoptodon
Prosaurolophus
Protoceratops
Psittacosaurus
Pteranodon
Pteranodon ver. 2
Pterodactylus
Pyrenean Ibex
Quetzalcoatlus
Repenomamus
Rhynchosaur
Robertia
Saltasaurus
Saurolophus
Scelidosaurus
Scutellosaurus
Scutosaurus
Segnosaurus
Shantungosaurus
Shonisaurus
Shonisaurus
Shunosaurus
Shuvuuia
Simosuchus
Sinocalliopteryx
Sinornithosaurus
Sinraptor
Sivatherium
Smilodon
Smilodon ver. 2
Sphenacodon
Spinosaurus
Spinosaurus ver. 2
Stagonolepis
Stegosaurus
Steller's Sea Cow
Stethacanthus
Stokesosaurus
Stomatosuchus
Struthiomimus
Struthiosaurus
Stygimoloch
Styracosaurus
Styracosaurus ver. 2
Styracosaurus ver. 3
Suchomimus
"Super Predator" (Carcharodontosaurus, Giganotosaurus, Saurophaganax, Tyrannosaurus Baatar, Tyrannosaurus Rex)
Tanaconda
Tanystropheus
Tanystropheus ver. 2
Tanystropheus ver. 3
Tapejara
Teleosaurus
Temnodontosaurus
Teratosaurus
Terrestrisuchus
Thalattosaurus
Therizinosaurus
Therizinosaurus ver. 2
Therizinosaurus ver. 3
Thylacine
Thylacoleo
Thylacoleo
Thylacosmilus
Tiktaalik
Titanosaurus
Titanosuchus
Titanosuchus ver. 2
Torosaurus
Torvosaurus
Troodon
Tsintaosaurus
Tullimonstrum
Tyrannosaurus Rex
Tyrannosaurus Rex ver. 2
Uintatherium
Uintatherium ver. 2
Utahraptor
Utahraptor ver. 2
Velociraptor
Venatraraptor
Vulcanodon
Wakaleo
Xiaosaurus
Xiphactinus
Yangchuanosaurus
Zuniceratops
Skills
Scent Tracking (Survival)
Feats
Confusing Trail
Foe of the Scaled
Gnash
Greater Toughness
Horrific Roar
Impenetrable Natural Armor
Prehistoric Affinity
Primal Spell
Primal Yell
Primeval Druid
Primeval Shape
Slay the Gigantic
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