Keyphrases
Echinodermata
100%
Asteroids
86%
Asteroidea
56%
Ossicles
22%
Ordovician
17%
Ophiuroids
16%
Crown Group
16%
Phylogeny
11%
Sea Star
10%
Echinoderms
10%
Antarctica
10%
Asterozoa
9%
Asterozoans
8%
Early Ordovician
8%
Late Ordovician
7%
Seymour Island
7%
Crinoids
7%
Texas
7%
Late Cretaceous
7%
Antarctic Peninsula
7%
Valvatida
7%
Asteriidae
7%
Goniasteridae
6%
Functional Morphology
6%
Shallow Water
5%
Class Level
5%
Fossil Record
5%
Morocco
5%
Skeletal Elements
5%
Ophiuroidea
5%
Upper Cretaceous
5%
Agricultural and Biological Sciences
Echinodermata
60%
Asteroidea
39%
New Species
23%
New Genus
22%
Cladistics
15%
Asteriidae
9%
Somasteroidea
8%
Crown Group
7%
Valvatida
6%
Paxillosida
6%
Skeleton
6%
Ophiuroidea
6%
Earth and Planetary Sciences
New Species
33%
New Genus
29%
Ordovician
19%
Morphology
18%
Eocene
9%
Early Ordovician
8%
Texas
7%
Late Cretaceous
7%
Fossil Record
7%
Shallow Water
6%
Silurian
6%
Upper Cretaceous
5%
Antarctic Region
5%
Morocco
5%