|
gptkb:Pelycosaurus
|
Environmental changes
|
|
gptkb:Merychippus_primus
|
climate change and competition
|
|
gptkb:ankylosaur
|
predation by theropods
|
|
gptkb:Smilodon
|
human hunting
|
|
gptkb:Maiasaura_peeblesorum
|
climate change
|
|
gptkb:Smilodon_gracilis
|
climate change
|
|
gptkb:Icthyosaurus_cornutus
|
Environmental changes
|
|
gptkb:Carcharodontosaurus_saharicus
|
gptkb:unknown
|
|
gptkb:Sauropod
|
Meteor impact
|
|
gptkb:The_Neanderthal
|
climate change
|
|
gptkb:Bactrosaurus_johnsoni
|
climate change
|
|
gptkb:Homo_sapiens_neanderthalensis
|
environmental changes
|
|
gptkb:Saurolophus_osborni
|
climate change
|
|
gptkb:Palorchestes
|
climate change
|
|
gptkb:Anthropology
|
climate change
|
|
gptkb:Machairodontinae
|
competition with other predators
|
|
gptkb:Nodosauridae
|
climate change
|
|
gptkb:Hyaenodontoidea
|
climate change
|
|
gptkb:Mammoths
|
hunting by humans
|
|
gptkb:Megatherium
|
overhunting and habitat loss
|