Earth & Environmental Sciences
turtle
100%
fossil
52%
Miocene
47%
fossil record
40%
South America
38%
Cretaceous
35%
bone
25%
Paleocene
23%
vertebrate
20%
skull
18%
Valanginian
17%
fauna
14%
phylogenetics
11%
invertebrate
10%
basin
9%
tortoise
9%
phylogeny
8%
new material
8%
shark
8%
paleontology
8%
Pleistocene
7%
snake
7%
stem
7%
mammal
7%
biota
6%
reptile
6%
Pliocene
6%
cranium
6%
egg development
6%
cladistics
6%
tooth
6%
Neogene
6%
palynology
5%
intermontane basin
5%
pterosaur
5%
history
5%
amber
5%
desert
5%
valley
5%
Agriculture & Biology
turtles
60%
fossils
52%
Colombia
37%
Podocnemididae
15%
Geoemydidae
13%
Testudines
13%
bones
11%
phylogeny
10%
Ecuador
10%
United Nations Educational, Scientific and Cultural Organization
8%
sharks
8%
Peltocephalus
7%
Rosa
7%
Kinosternidae
6%
Germany
6%
Trionyx
6%
Trionychidae
6%
Cheloniidae
6%
Peru
6%
blood vessels
6%
sea turtles
5%
vertebrates
5%
paleontology
5%
Chelydridae
5%
Medicine & Life Sciences
Turtles
64%
Colombia
25%
South America
17%
UNESCO
13%
Fresh Water
9%
Osteocytes
9%
Animal Shells
9%
Germany
7%
Ecuador
6%
Bone and Bones
6%
North America
6%
Peru
6%
Anatomy
6%
Phylogeny
5%
Madagascar
5%
Museums
5%
Comb and Wattles
5%
Sharks
5%
Tars
5%