InvertebrateEarly Ordovician
Aegirocassis
Aegirocassis was a radiodont from the Early Ordovician seas recorded in Morocco.
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Showing 433–456 of 578 creatures
Invertebrate
DinosaurLate Cretaceous
Anzu
Anzu combined a toothless beak, long legs and a prominent bony crest.
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DinosaurCretaceous
Meraxes
Meraxes was a large carcharodontosaurid from Patagonia.
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PlantLate Devonian
Archaeopteris
Archaeopteris hibernica belonged to an extinct group that combined woody growth with fern-like foliage.
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PlantMiddle Devonian
Wattieza
Wattieza casasii was a tree-like plant with a crown of branching fronds.
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PlantDevonian
Calamophyton
Calamophyton primaevum had a distinctive branching crown rather than the broad leaves of a flowering tree.
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PlantEarly Devonian
Asteroxylon
Asteroxylon mackiei grew as a small branching plant, with leafy shoots and a different system of rooting axes.
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PlantEarly Devonian
Rhynia
Rhynia gwynne-vaughanii was a small early vascular plant with smooth, branching stems.
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PlantEarly Devonian
Aglaophyton
Aglaophyton majus formed branching, leafless shoots with spore-bearing tips.
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PlantEarly Cretaceous
Archaefructus
Archaefructus liaoningensis had finely divided foliage and slender reproductive axes.
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PlantEarly Cretaceous
Montsechia
Montsechia vidalii was an aquatic plant with slender branching stems and small leaves.
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InvertebrateSilurian
Eurypterus
Eurypterus remipes was an aquatic arthropod with a segmented body, grasping limbs and a broad pair of swimming paddles.
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InvertebrateEarly Devonian
Jaekelopterus
Jaekelopterus rhenaniae was a very large eurypterid with formidable grasping chelicerae.
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InvertebrateCarboniferous
Pulmonoscorpius
Pulmonoscorpius kirktonensis was a large fossil scorpion with a segmented tail and prominent eyes.
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InvertebrateLate Cretaceous
Parapuzosia
Parapuzosia seppenradensis was a giant ammonite with a coiled, chambered shell.
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InvertebrateLate Cretaceous
Diplomoceras
Diplomoceras maximum was an ammonite with an exceptionally long shell bent into repeated turns.
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InvertebrateCambrian
Hurdia
Hurdia victoria was a radiodont with a large multipart head carapace, swimming flaps and a pair of specialized frontal appendages.
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InvertebrateCambrian
Wiwaxia
Wiwaxia corrugata carried a covering of small protective sclerites and long spines.
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Enigmatic animalCarboniferous
Tullimonstrum
Tullimonstrum gregarium had a soft body, stalked eyes and a long front appendage.
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FishCarboniferous
Edestus
Edestus heinrichi was a cartilaginous fish with unusual tooth-bearing structures in its jaws.
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AmphibianEarly Permian
Diplocaulus
Diplocaulus magnicornis is recognized by the broad, boomerang-like projections at the back of its skull.
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AmphibianEarly Permian
Eryops
Eryops megacephalus was a robust temnospondyl with a broad skull and strong limbs.
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AmphibianMiddle Triassic
Mastodonsaurus
Mastodonsaurus giganteus had a huge, flat skull and an aquatic-looking body.
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ReptileLate Triassic
Drepanosaurus
Drepanosaurus unguicaudatus had a specialized forelimb and a strongly curved tail tip.
Meet DrepanosaurusEach card identifies its kind of creature. Fictional characters are labeled and have their own game stories. AI-generated, stylized game illustrations. These designs and growth stages are imaginative, not scientific reconstructions.