Santonian
This article is licensed under the GNU Free Documentation License. It uses material from the Wikipedia article "Santonian".

The Santonian is a faunal stage^[1] of the Late Cretaceous Epoch. It spans the time between 85.8 ± 0.7 mya (million years ago) and 83.5 ± 0.7 mya.^[2]

According to the ICS, its start is defied by the appearance of the inoceramid bivalve Cladoceramus undulatoplicatus. Its end is marked by the extinction of the crinoid Marsupites testudinarius.^[2]

Vertebrate Fauna

†Ankylosaurs

Birds

Cartilaginous Fish

†Ceratopsians

Ceratopsians of the Santonian
Taxa	Presence	Location	Description	Images
Craspedodon				Reconstruction of Udanoceratops
Udanoceratops[4]

Crocodylomorphs

Crocodylomorphs of the Santonian
Taxa	Presence	Location	Description	Images
†Notosuchus				Reconstruction of Notosuchus, a relative of the crocodiles
†Shamosuchus

Mammals

†Ornithopods

Ornithopods of the Santonian
Taxa	Presence	Location	Description	Images
†Arstanosaurus				Claosaurus Gryposaurus Reconstruction of Nipponosaurus, a duck-billed dinosaur
†Claosaurus[3]
†Gryposaurus
†Nipponosaurus

†Pterosaurs

Pterosaurs of the Santonian
Taxa	Presence	Location	Description	Images
†Aralazhdarcho				Reconstruction of Bakonydraco
†Bakonydraco

†Sauropods

Squamates

Squamates of the Santonian
Taxa	Presence	Location	Description	Images
†Eonatator				Reconstruction of Tylosaurus, a mosasaur
Madtsoia †Madtsoia madagascariensis[4]
†Tylosaurus

†Theropods (non-avian)

†Non-avian theropods of the Santonian
Taxa	Presence	Location	Description	Images
Achillesaurus[3]				Portrait of Oviraptor Portrait of Saurornithoides
†Achillobator
†Alectrosaurus
†Apatornis[4],
†Aucasaurus[3]
†Oviraptor[3] Occurrence outside this stage
†Patagopteryx[3]
†Saurornithoides

Flora

Magnoliopsida

Advanced dicotyledons

• Droseraceae: †Palaeoaldrovanda

Footnotes

 This geochronology article is a stub. You can help Wikipedia by expanding it.