Earth & Environmental Sciences
trace fossil
100%
ichnofacies
81%
terrestrial ecosystem
72%
colonization
65%
creek
63%
ichnology
54%
Pennsylvanian
50%
animal
43%
paleoecology
41%
paleogeography
41%
architectural design
40%
annelid
38%
transgression
37%
carbon cycle
35%
Ediacaran
34%
arthropod
32%
stratigraphy
31%
Ordovician
25%
oxygen
23%
biota
22%
fill
21%
trackway
20%
limestone
18%
basin
18%
tetrapod
18%
continental interior
17%
mollusk
16%
niche
16%
explosion
16%
program
15%
Pangaea
15%
echinoderm
14%
tropical climate
14%
occupation
14%
ichnofabric
14%
infill
13%
ostracod
13%
decoupling
13%
paleosol
13%
land
12%
fossil
12%
lake
11%
floodplain
11%
transition
10%
habitat
10%
Paleozoic
10%
desert
10%
shale
9%
fauna
9%
document
9%
sandstone
9%
freshwater environment
9%
terrestrial environment
8%
burrow
8%
levee
8%
documentation
7%
fluvial deposit
6%
bioerosion
6%
paleobiology
6%
fossilization
6%
substrate
6%
pond
6%
animal behavior
6%
river
5%
desiccation
5%
brackish water
5%
motility
5%
mass extinction
5%
bioturbation
5%
Silurian
5%
Agriculture & Biology
New Brunswick
63%
fossils
62%
palaeogeography
62%
stratigraphy
61%
Canada
61%
paleoecology
57%
Annelida
41%
basins
33%
arthropods
33%
ecosystems
27%
limestone
27%
paleosolic soil types
22%
molluscs
18%
shale
17%
coastal forests
16%
sandstone
16%
dry climates
15%
Nova Scotia
15%
Echinodermata
14%
arid lands
13%
freshwater lakes
12%
highlands
11%
tropics
11%
fauna
10%
burrows
9%
habitats
7%
organisms
6%
fish
5%