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