REPTILE FOSSILS

The origin of the reptiles lies about 310–320 million years ago, in the steaming swamps of the late Carboniferous period, when the first reptiles evolved from advanced reptiliomorphs.  The oldest known animal that may have been an amniote is Casineria (though it may have been a temnospondyl). A series of footprints from the fossil strata of Nova Scotia dated to 315 Mya show typical reptilian toes and imprints of scales. These tracks are attributed to Hylonomus, the oldest unquestionable reptile known. It was a small, lizard-like animal, about 20 to 30 centimetres (7.9 to 11.8 in) long, with numerous sharp teeth indicating an insectivorous diet. Other examples include Westlothiana (for the moment considered a reptiliomorph rather than a true amniote) and Paleothyris, both of similar build and presumably similar habit.

Rise of the reptiles. The earliest amniotes, including stem-reptiles (those amniotes closer to modern reptiles than to mammals), were largely overshadowed by larger stem-tetrapods, such as Cochleosaurus, and remained a small, inconspicuous part of the fauna until the Carboniferous Rainforest Collapse. This sudden collapse affected several large groups. Primitive tetrapods were particularly devastated, while stem-reptiles fared better, being ecologically adapted to the drier conditions that followed. Primitive tetrapods, like modern amphibians, need to return to water to lay eggs; in contrast, amniotes, like modern reptiles – whose eggs possess a shell that allows them to be laid on land – were better adapted to the new conditions. Amniotes acquired new niches at a faster rate than before the collapse and at a much faster rate than primitive tetrapods. They acquired new feeding strategies including herbivory and carnivory, previously only having been insectivores and piscivores. From this point forward, reptiles dominated communities and had a greater diversity than primitive tetrapods, setting the stage for the Mesozoic (known as the Age of Reptiles). One of the best known early stem-reptiles is Mesosaurus, a genus from the early Permian that had returned to water, feeding on fish.

Elosuchus cherifiensis Crocodile Teeth, Cretaceous Morocco
Crocodilian Teeth from the Gharial like, long snout Cretaceous beasty.  These are Early Cretaceous (Cenomanian), Aufous Fm, Morocco. All come boxed and labelled.  Where the tooth is too big for a label, this will come with the box.  Some of the labels are removed for photographic purposes but you will get one with your fossil. 

Elosuchus Crocodilian Tooth 52

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Elosuchus Crocodilian Tooth 53

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Elosuchus Crocodilian Tooth 55

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Elosuchus Crocodilian Tooth 56

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Elosuchus Crocodilian Tooth E1

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Elosuchus Crocodilian Tooth E3

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Elosuchus Crocodilian Tooth E2

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Elosuchus Crocodilian Tooth E4

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Elosuchus Crocodilian Tooth E21

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Elosuchus Crocodilian Tooth E19

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Elosuchus Crocodilian Tooth E15

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Elosuchus Crocodilian Tooth E28

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Elosuchus Crocodilian Tooth E23

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Elosuchus Crocodilian Tooth E8

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Elosuchus Crocodilian Tooth E7

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Elosuchus Crocodilian Tooth E10

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Elosuchus Crocodilian Tooth E5

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Elosuchus Crocodilian Tooth E12

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Elosuchus Crocodilian Tooth E25

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Elosuchus Crocodilian Tooth E32

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Elosuchus Crocodilian Tooth E38

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Elosuchus Crocodilian Tooth E51

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Elosuchus Crocodilian Tooth E57

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Elosuchus Crocodilian Tooth E61

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Various Kem Kem Crocodile/Dinosaur Bones

Elosuchus Crocodile Vertebrae Kem Kem 2

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Elosuchus Crocodile Vertebrae Dorsal Kem Kem 3

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Elosuchus Crocodile Vertebrae Kem Kem 4

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Elosuchus Crocodile Vertebrae Kem Kem 5

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Elosuchus Crocodile Dorsal Vertebrae Kem Kem 6

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Elosuchus Crocodile Dorsal Vertebrae Kem Kem 7

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Elosuchus Crocodile Vertebrae Kem Kem 8

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Elosuchus Crocodile Vertebrae Kem Kem 9

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Elosuchus Crocodile Dorsal Vertebrae Kem Kem 14

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Elosuchus Crocodile Dorsal Vertebrae Kem Kem 23

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Elosuchus Crocodile Vertebrae Kem Kem 34

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Elosuchus Crocodile Dorsal Vertebrae Kem Kem 36

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Elosuchus Crocodile Dorsal Vertebrae Kem Kem 37

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Elosuchus Crocodile Anterior Dorsal Vertebrae Kem Kem 50

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Elosuchus Crocodile Vertebrae Kem Kem 58

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Elosuchus Crocodile Proximal Caudal Vertebrae Kem Kem 60

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Elosuchus Crocodile Dorsal Vertebrae Kem Kem 61

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Elosuchus Crocodile Caudal Vertebrae Kem Kem 63

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Turtle Carapace Shell section Kem Kem 159

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Turtle Carapace Marginal Shell section Kem Kem 160

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Turtle Carapace Shell section Kem Kem 161

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Turtle Carapace Shell section Kem Kem 162

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Turtle Carapace Shell section Kem Kem 163

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Turtle Carapace Shell section Kem Kem 164

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Turtle Carapace Shell section Set Kem Kem 165

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Turtle Carapace Shell section Set Kem Kem 166

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Mawsonia Fish Skull bones study set Kem Kem 10

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Turtle Carapace Shell section Kem Kem 16

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Mawsonia/Axelrodichthys Fish Skull bone set Kem Kem 101

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Mawsonia Fish Angular Bone Kem Kem 102

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Axelrodichthys Parasphenoid Fish Bone Kem Kem 106

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Crocodilian Rib Bone Kem Kem 108

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Crocodilian Quadratojugal bone bone Kem Kem 109

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Crocodilian Rib Bone Kem Kem 110

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Crocodilian Rib bone Bone Kem Kem 111

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Mawsonia/Axelrodichthys Fish Bone Kem Kem 112

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Mawsonia/Axelrodichthys Fish Palate Bone Kem Kem 114

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Crocodilian Rib Bone Kem Kem 115

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Mawsonia/Axelrodichthys Fish Quadrate Bone Kem Kem 117

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Mawsonia/Axelrodichthys Fish Quadrate Bone Bone Kem Kem 119

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Mawsonia/Axelrodichthys Fish Angular Bone Kem Kem 126

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Elosuchus Crocodile Sternal Rib Bone Kem Kem 103

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Mawsonia/Axelrodichthys Fish Quadrate Bone Bone Kem Kem 120

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Mawsonia/Axelrodichthys Fish Quadrate Bone Bone Kem Kem 123

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Elosuchus/Hamadasuchus Skull bone scute Bone Kem Kem 124

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Elosuchus/Hamadasuchus Dorsal Vertebra Kem Kem 125

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Elosuchus/Hamadasuchus Lower Dentary bone Kem Kem 127

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Elosuchus Crocodile Indet. limb Bone Kem Kem 128

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Elosuchus/Hamadasuchus Vertebra Kem Kem 129

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Elosuchus Crocodile Partial Ilium Bone Kem Kem 142

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Mawsonia/Axelrodichthys Fish Angular Bone Kem Kem 143

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Spinosaurus Dorsal Vertebra Kem Kem 144

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Elosuchus/Hamadasuchus Lower Dentary bone Kem Kem 146

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Elosuchus/Hamadasuchus bony scute Bone Kem Kem 147

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Xiphactinus like Fish Jaw with teeth Kem Kem 148

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Retroarticular bone/lower Jaw bone set Elosuchus Kem Kem 149

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Plesiosaurus Vertebra Kem Kem 150

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Plesiosaurus Vertebra Kem Kem 152

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Plesiosaurus Vertebra Kem Kem 153

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Elosuchus/Hamadasuchus Snout tip Kem Kem 155

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Mawsonia/Axelrodichthys Partial Fish Angular Bone Kem Kem 156

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Mawsonia/Axelrodichthys Ornamented Fish Bone Kem Kem 158

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Elosuchus/Hamadasuchus Snout tip Kem Kem 168

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Mawsonia/Axelrodichthys Partial Fish Angular Bone Kem Kem 157

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Elosuchus Crocodile Sternal Rib Bone Kem Kem 191

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Elosuchus Crocodile Rib Bone Kem Kem 194

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Elosuchus Crocodile Rib Bone Kem Kem 195

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Elosuchus Crocodile Rib Bone Kem Kem 196

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Elosuchus Crocodile Rib Bone Kem Kem 197

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Elosuchus Crocodile Rib Bone Kem Kem 198

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Elosuchus Crocodile Rib Bone Kem Kem 199

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Elosuchus Crocodile Rib Bone Kem Kem 200

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Elosuchus Crocodile Dorsal Vertebrae Kem Kem 67

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Elosuchus Crocodile Thoracic Vertebrae Kem Kem 68

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Elosuchus Crocodile Anterior Dorsal Vertebrae Kem Kem 79

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Elosuchus Crocodile Dorsal Vertebrae Kem Kem 80

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Crocodilian Vertebra Kem Kem 140

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Crocodilian Hind Limb Tarsal bone Kem Kem 204

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Alligator mississippiensis Scute & Teeth fossils, USA
Fossil dermal scutes and Teeth from Alligators. These scute fossils are identified by the ridge along the middle of the scute and pitted surface. Teeth are nearly always conical and domed shaped. All below belong to Alligator mississippiensis sp and are dated to between 1.0 and 1.5 Million years old.

Fossil Alligator mississippiensis Scute + Tooth Set 151

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Fossil Alligator mississippiensis Scute + Tooth Set 153

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Fossil Alligator mississippiensis Scute + Tooth Set 154

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Fossil Alligator mississippiensis Scute + Tooth Set 155

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Fossil Alligator mississippiensis Scute + Tooth Set 156

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Fossil Alligator mississippiensis Scute + Tooth Set 159

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Fossil Alligator mississippiensis Scute + Tooth Set 161

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Fossil Alligator mississippiensis Scute + Tooth Set 162

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Fossil Alligator mississippiensis Scute + Tooth Set 163

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Fossil Alligator mississippiensis Scute + Tooth Set 164

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Fossil Alligator mississippiensis Scute + Tooth Set 166

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Fossil Alligator mississippiensis Scute + Tooth Set 167

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Fossil Alligator mississippiensis Scute + Tooth Set 168

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Fossil Alligator mississippiensis Scute + Tooth Set 169

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Fossil Alligator mississippiensis Scute + Tooth Set 170

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Fossil Alligator mississippiensis Scute + Tooth Set 152

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