 | Cycadeoidea dakotensis |
 | Cycadeoidea marylandica |
Tracheophyta
Lophotrochozoa
Echinodermata
Vertebrata
Osteichthyes
 | Notelops brama |
 | Brannerion |
 | Calamopleurus cylindricus |
 | Cladocyclurus sp. |
 | Ichthyodectes anaides |
 | Neoproscinetes penalvai |
 | Obaichthys decoratus |
 | Spaniodon blondeli |
 | Teoichthys kallistos |
 | Xiphactinus audax |
Sarcopterygii
Amniota
Testudinata
Squamata
 | Estesia mongoliensis |
 | Platycarpus tympaniticus |
 | Polyglyphanodon sternbergi |
 | Plotosaurus bennisoni |
 | Tylosaurus proriger |
Archosauromorpha (Stem-Archosauria)
Eosauropterygia
Archosauria
Pterosauria
Dinosauria
