The PEDIGREE of
Subclass Diapsida

     (giant ichthyosaurs were as large as, and similar in many ways to, the largest whales)

 "Child(ren)":       Infraclass Lepidosauromorpha   ;   Infraclass Archosauromorpha   ;   Ichthyosaurs   ;   other extinct orders
________________________________________________________________________________________________________ 
/-- Superphylum Deuterostomia (kin)   +====> [ 76]
/-- Phylum Chordata (Vertebrates, tunicates, and lancelets)
/-- Clade Craniata
/-- Subphylum Vertebrata
/-- Infraphylum Gnathostomata (Jawed Vertebrates)
/-- Microphylum Teleostomi (Bony fishes & Spiny sharks)
/-- Superclass Osteichthyes (Bony fishes)
/-- Class Sarcopterygii (Lobe-finned Fishes)
/-- Clade of Rhipidistia
/-- Subclass Tetrapodamorpha
/-- Infraphylum Tetrapoda
/-- Clade Reptiliomorpha
/-- Microphylum Amniota (Mammals, Reptiles, etc.)
/-- Class Sauropsida (Reptiles)
/-- Clade Romeriida
/  
- Subclass Diapsida
 

 
  (poss.) ``2-Great Grandchildren:''       Hypoorder Toxicofera   ;   Suborder Scleroglossa   ;   Order Crocodilia   ;   Clade Dinosauria   ;   Suborder Cryptodira
 

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