This category is reserved for pages on taxa that spend most or all of their life in the water. This can range from fish to mammals to reptiles across all time periods.
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All items (483)
A
- Abadzekhia
- Abyssocypris tipica
- Abyssosaurus
- Acamptonectes
- Acipenser
- Acostasaurus
- Acrophyseter
-
- Acuetzpalin
- Acutiramus
- Adocus
- Aeger
- Aegocrioceras
- Aegyptocetus
- Aetiocetus
- Alalcomenaeus
- Allodesmus
- Ambulocetus
- Amia
- Ammonoidea
- Anisoceras
- Annakacygna
- Anningasaura
- Anomalocaris
- Anomia
- Antarctilamna
- Apatomerus
-
- Aquilolamna
- Arandaspis
- Araripelepidotes
- Araripemys
- Arcestes
- Archaefructus
- Archaeopriapulida
- Archelon
- Argovisaurus
-
- Ashoroa
- Askeptosaurus
- Atopodentatidae
- Atopodentatus
- Australopachycormus
B
- Baculites
- Baculitidae
- Balcoracania
-
- Bandringa
- Baptornis
- Basilemys
- Basilosaurus
- Belantsea
- Belemnite
-
- Bernissartia
- Besanosaurus
- Bharatisiren
- Birkenia
- Bonnerichthys
- Borealosuchus
- Boreaspis
- Bothriolepis
- Bowfin
-
- Brannerion
- Brontoscorpio
- Brygmophyseter
-
- Burgessia
C
- Calamopleurus
- Californosaurus
- Callichimaera
- Cameroceras
- Canadaga
- Carbonemys
- Carcinosoma
- Cardabiodon
- Cardiocorax
- Carinodens
- Cartorhynchus
- Casatia
- Caypullisaurus
- Ceratites
- Ceresiosaurus
-
- Cheiropyge
- Cheirurus
- Chinlea
- Cladocyclus
- Cladoselache
-
- Coccodus
- Coelacanthiformes
-
- Contectopalatus
- Cooyoo
- Copepteryx
- Corbicula
- Cordaticaris
-
- Cretoxyrhina
- Cricosaurus
- Crioceratites
- Ctenacanthus
- Cupressocrinites
- Cygnus falconeri
- Cymatosaurus
- Cymbospondylus
D
E
G
H
- Haikouichthys
- Halisaurus
- Hallucigenia
- Halwaxiida
- Han
- Hauffiosaurus
- Heliophyllum
- Henodus
- Herpetocetus
- Herrmannina
- Hesperornis
- Heteroceras
- Hexaprotodon
- Hildoceras
- Himalayasaurus
- Hippocampus sarmaticus
- Hippocampus slovenicus
- Hippopotamus antiquus
- Hippopotamus gorgops
-
- Hupehsuchus
- Hurdia
- Hutchemys
- Hybodus
- Hydrorion
- Hyphalosaurus
- Hypoturrilites