- Cons ❌
- Incomplete Skeleton (1)
- Incomplete Understanding (1)
- Limited Behavior Data (1)
- Limited Complete Skeletons (1)
- Behavior Debates (1)
- Complex Anatomy (1)
- Difficulty Moving (1)
- Incomplete Fossils (1)
- Incomplete Remains (1)
- Limited Arm Functionality (1)
- Limited Brain Size (1)
- Heavy Weight (1)
- High Food Requirements (1)
- High Maintenance Diet (1)
- Limited Adult Specimen Data (1)
- Common Appearance (1)
- Complex Evolution (1)
- Complex Flight Mechanics (1)
- Fragile Sail Structure (1)
- Limited Defense (6)
- Limited Complete Specimens (1)
- Age Controversy (1)
- Fragile Bones (4)
- Function Of Crest Debated (1)
- Incomplete Fossil Record (1)
- Outdated Early Interpretations (1)
- Relatively Small Arms (1)
- Slow Movement (3)
- Small Size Limits Predatory Capabilities (1)
- Very Small Size (1)
- Limited Diet Information (1)
- Limited Uniqueness (1)
- Limited Vision (1)
- Misunderstood Role (1)
- Limited Prey Variety (1)
- Limited Size (1)
- Limited Speed (1)
- Limited Terrestrial Mobility (1)
- Purpose Of Spines Debated (1)
- Regional Distribution (1)
- Restricted Head Movement (1)
- Size Limitations (2)
- Limited Maneuverability (1)
- Small Size Limits Study Scope (1)
- Slower Than Smaller Raptors (1)
- Limited Fossil Sites (1)
- Limited Ground Mobility (1)
- Small Size (5)
- Smaller Than T-Rex (1)
- Limited Defensive Capabilities (2)
- Vulnerable To Predators (5)
- Discovery Location 🌍
- Kem Kem Beds Morocco (1)
- Belgium (1)
- Argentina (3)
- Bavaria Germany (1)
- Colorado USA (2)
- Dorset England (1)
- Gobi Desert Mongolia (2)
- Hell Creek Formation Montana (2)
- Kansas USA (1)
- Alberta Canada (4)
- Mongolia (3)
- Liaoning China (1)
- Cerro Fortaleza Formation Argentina (1)
- Egypt (1)
- Germany Europe (1)
- Arizona USA (1)
- Canada North America (1)
- Como Bluff Wyoming (1)
- Germany France (1)
- Khok Kruat Formation Thailand (1)
- La Amarga Formation Argentina (1)
- Niger Africa (1)
- Oxfordshire England (2)
- Patagonia Argentina (1)
- Sichuan China (1)
- Utah USA (2)
- Montana USA (4)
- New Mexico USA (1)
- South Dakota USA (2)
- Tanzania Africa (1)
- Texas USA (1)
- Mongolia Asia (1)
- South Africa (1)
- Oklahoma USA (1)
- North America (1)
- Morrison Formation Wyoming (1)
- Distinguishing Features 🦄
- Agile Build (2)
- Bipedal (1)
- Bristles (1)
- Club Tail (1)
- Bird-Like Features (2)
- Beaked Jaw (1)
- Armored Body (1)
- Back Plates (1)
- Column-Like Legs (1)
- Beak-Like Mouth (1)
- Large Skull (1)
- Neural Crests (1)
- Plates Along Back (1)
- Different-Sized Teeth (1)
- Dual Head Crests (1)
- Duck Bill (2)
- Head Crest (2)
- Large Size (1)
- Giant Killing Claw (1)
- Massive Claws (1)
- Massive Wingspan (1)
- Nostrils On Head (1)
- Multiple Spikes (1)
- Powerful Legs (1)
- Extremely Long Neck (1)
- Flexible Skull (1)
- Four Wings (1)
- Iridescent Feathers (1)
- Long Neck (11)
- Robust Limbs (1)
- Duck-Like Bill (3)
- Hollow Head Crest (3)
- Horned Skull (1)
- Long Nose Horn (1)
- Massive Size (2)
- Sharp Claws (2)
- Thumb Spikes (1)
- Spiky Head (1)
- Stiff Tail (1)
- Tiny Arms (2)
- Short Snout (1)
- Sickle Claws (1)
- Small Head (2)
- Spikes (2)
- Slender Build (1)
- Toothless Beak (4)
- Wing Membranes (1)
- Spiked Tail (1)
- Tail Spikes (1)
- Tall Neural Spines (1)
- Three Horns (1)
- Family Classification 🦕
- Cetiosauridae (1)
- Abelisauridae (1)
- Archaeopterygidae (1)
- Azhdarchidae (1)
- Brachiosauridae (1)
- Ceratopsidae (3)
- Carcharodontosauridae (3)
- Allosauridae (1)
- Ankylosauridae (2)
- Dicraeosauridae (1)
- Diplodocidae (2)
- Hadrosauridae (6)
- Pachycephalosauridae (2)
- Therizinosauridae (1)
- Thescelosauridae (1)
- Oviraptoridae (1)
- Pteranodontidae (1)
- Compsognathidae (1)
- Dilophosauridae (1)
- Dimorphodontidae (1)
- Iguanodontidae (1)
- Massospondylidae (1)
- Ornithomimidae (1)
- Titanosauria (1)
- Coelophysidae (1)
- Mamenchisauridae (1)
- Megalosauridae (1)
- Saltasauridae (1)
- Spinosauridae (2)
- Stegosauridae (2)
- Dromaeosauridae (4)
- Plateosauridae (1)
- Protoceratopsidae (1)
- Titanosauridae (1)
- Tyrannosauridae (1)
- Pros ✅
- Agile (1)
- Complete Skeletal Remains (1)
- Complex Vocal Abilities (1)
- Abundant Fossils (1)
- Distinctive Appearance (3)
- Efficient Feeding (1)
- Excellent Fossil Preservation (1)
- Excellent Preservation (3)
- Aquatic Adaptations (1)
- Easy To Study (1)
- Effective Defense (1)
- Effective Defense Mechanism (1)
- Enormous Size (1)
- Common Finds (1)
- Complex Vocalizations (1)
- Excellent Speed (1)
- Extensive Fossil Record (1)
- Social Structure (1)
- Great Fossil Record (1)
- Growth Series Known (1)
- Impressive Display (1)
- Impressive Size (1)
- Numerous Specimens (1)
- Pack Behavior (1)
- Powerful Predator (1)
- Fish Hunting (1)
- Growth Series Available (1)
- Social Nature (1)
- Historical Significance (1)
- Large Size (1)
- Good Fossil Record (3)
- Important For Understanding Herbivore Evolution (1)
- Nesting Behavior Evidence (1)
- Powerful Hunter (1)
- Revolutionary Findings (1)
- Size Record (1)
- Important For Sauropod Evolution (1)
- Important Historical Value (1)
- Incredible Bite Force (1)
- Pack Behavior Evidence (1)
- Size Record Holder (1)
- Strong Defense (2)
- Unique Skull Structure (1)
- Well-Preserved Eggs And Embryos (1)
- Unique Neck Structure (1)
- Well Preserved Fossils (1)
- Unique Armor (1)
- Unique Spine Structure (1)
- Well-Preserved (1)
- Well-Studied (4)
- Scientific Name 🦖
- Allosaurus Fragilis (1)
- Dilophosaurus Wetherilli (1)
- Acrocanthosaurus Atokensis (1)
- Apatosaurus Ajax (1)
- Archaeopteryx Lithographica (1)
- Carcharodontosaurus Saharicus (1)
- Cetiosaurus Oxoniensis (1)
- Coelophysis Bauri (1)
- Deinonychus Antirrhopus (1)
- Dimorphodon Macronyx (1)
- Amargasaurus Cazaui (1)
- Argentinosaurus Huinculensis (1)
- Brachiosaurus Altithorax (1)
- Carnotaurus Sastrei (1)
- Ankylosaurus Magniventris (1)
- Compsognathus Longipes (1)
- Diplodocus Carnegii (1)
- Dreadnoughtus Schrani (1)
- Giganotosaurus Carolinii (1)
- Maiasaura Peeblesorum (1)
- Mamenchisaurus Constructus (1)
- Pachycephalosaurus Wyomingensis (1)
- Parasaurolophus Walkeri (2)
- Protoceratops Andrewsi (1)
- Dracorex Hogwartsia (1)
- Gallimimus Bullatus (1)
- Massospondylus Carinatus (1)
- Microraptor Gui (1)
- Psittacosaurus Mongoliensis (1)
- Saltasaurus Loricatus (1)
- Iguanodon Bernissartensis (1)
- Lambeosaurus Lambei (1)
- Plateosaurus Engelhardti (1)
- Quetzalcoatlus Northropi (1)
- Edmontosaurus Regalis (1)
- Euoplocephalus Tutus (1)
- Kentrosaurus Aethiopicus (1)
- Megalosaurus Bucklandii (1)
- Ouranosaurus Nigeriensis (1)
- Oviraptor Philoceratops (1)
- Pteranodon Longiceps (1)
- Velociraptor Mongoliensis (1)
- Siamosaurus Suteethorni (1)
- Therizinosaurus Cheloniformis (1)
- Utahraptor Ostrommaysorum (1)
- Spinosaurus Aegyptiacus (1)
- Stegosaurus Stenops (1)
- Styracosaurus Albertensis (1)
- Thescelosaurus Neglectus (1)
- Triceratops Horridus (1)
- Tyrannosaurus Rex (1)