Taxon
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Taxa: A
Anarosaurus pumilio
Species
Anarosaurus heterodontus
Species
Anarosaurus pumilio
Species
Augustasaurus hagodorni
Species
Aristonectes parvidens
Species
Alzadasaurus riggsi
Species
Alzadasaurus pembertoni
Species
Alzadasaurus cf. A. pembertoni
Species
Alzadasaurus tropicus
Species
Alzadasaurus kansasensis
Species
Alzadasaurus colombiensis
Species
Aphrosaurus furlongi
Species
Archaeonectrus rostratus
Species
Apractocleidus teretipes
Species
nomen dubium
Alzadasaurus serpentinus
Species
Apractocleides aldingeri
Species
Attenborosaurus conybeari
Species
Aptychodon cretaceous
Species
Anarosaurus
sp.
Genus
Augustasaurus
sp.
Genus
Aristonectes
sp.
Genus
Alzadasaurus
sp.
Genus
Aphrosaurus
sp.
Genus
Archaeonectrus
sp.
Genus
Apractocleidus
sp.
Genus
Attenborosaurus
sp.
Genus
nomen bakkeri
Aptychodon
sp.
Genus
Aristonectinae
Unranked clade
