Overview
Taxonomy
The Suborder Plesiosauroidea is a member of the Order Plesiosauria. Here is the complete "parentage" of Plesiosauroidea:
- Domain: Eukaryota
Whittaker & Margulis,1978 - eukaryotes
- Kingdom: Animalia
C. Linnaeus, 1758 - animals
- Subkingdom: Bilateria
(Hatschek, 1888) Cavalier-Smith, 1983 - bilaterians
- Branch: Deuterostomia
Grobben, 1908 - Deuterostomes
- Infrakingdom: Chordonia
(Haeckel, 1874) Cavalier-Smith, 1998
- Phylum: Chordata
Bateson, 1885 - Chordates
- Subphylum: Vertebrata
Cuvier, 1812 - Vertebrates
- Infraphylum: Gnathostomata
auct. - Jawed Vertebrates
- Superclass: Tetrapoda
Goodrich, 1930 - Tetrapods
- Class: Sauropsida
- Subclass: Diapsida
- Infraclass: Lepidosauromorpha
- Superorder: Sauropterygia
- Order: Plesiosauria
- Suborder: Plesiosauroidea
- Order: Plesiosauria
- Superorder: Sauropterygia
- Infraclass: Lepidosauromorpha
- Subclass: Diapsida
- Class: Sauropsida
- Superclass: Tetrapoda
Goodrich, 1930 - Tetrapods
- Infraphylum: Gnathostomata
auct. - Jawed Vertebrates
- Subphylum: Vertebrata
Cuvier, 1812 - Vertebrates
- Phylum: Chordata
Bateson, 1885 - Chordates
- Infrakingdom: Chordonia
(Haeckel, 1874) Cavalier-Smith, 1998
- Branch: Deuterostomia
Grobben, 1908 - Deuterostomes
- Subkingdom: Bilateria
(Hatschek, 1888) Cavalier-Smith, 1983 - bilaterians
- Kingdom: Animalia
C. Linnaeus, 1758 - animals
The Suborder Plesiosauroidea is further organized into finer groupings including:
- Series (1): Amniota
- Family (4): Cimoliasauridae · Cryptoclididae · Elasmosauridae · Polycotylidae
Families
Cimoliasauridae
Elasmosauridae was a family of plesiosaurs. They had the longest necks of the plesiosaurs and survived from the Late Triassic to the end of the Cretaceous. They had a diet of fish and shelless cephalopods. [more]
Cryptoclididae
Cryptoclididae is a family of medium-sized plesiosaurs that lived from the Middle Jurassic to the Late Cretaceous. In 2010, Kaiwhekea was transferred to Leptocleididae and Aristonectes was transferred to Elasmosauridae. [more]
Elasmosauridae
Polycotylidae
At least 5 species and subspecies belong to the Family Polycotylidae.
More info about the Family Polycotylidae may be found here.
Sources
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