Columbia subject headings:
Paleontology, Stratigraphic--Congresses.
Tethys (Paleogeography)--Congresses.
Harvard subject headings:
Paleobiogeography--Congresses.
Paleontology--Congresses
Tethys (Paleogeography)--Congresses.
Princeton subject headings:
Paleontology, Stratigraphic--Congresses.
Tethys (Paleogeography)--Congresses.