Columbia subject headings:
Crinoidea, Fossil.
Paleontology--Jurassic.
Pelmatozoa, Fossil--Great Britain.
Harvard subject headings:
Crinoidea, Fossil.
Paleontology--Great Britain
Paleontology--Jurassic
Pelmatozoa, Fossil--Great Britain.
Princeton subject headings:
Crinoidea, Fossil.
Paleontology--Great Britain.
Paleontology--Jurassic.
Pelmatozoa, Fossil.