Perichelydia
Perichelydia (from Greek "peri" "near" and "chelys" "turtle") is a clade within Pantestudines (turtles and their extinct relatives) known from the Middle Jurassic to Holocene. Alongside crown group Testudines, it also contains Helochelydridae, which is known from the Cretaceous of Europe and North America, Sichuanchelyidae from the Middle Jurassic to Paleocene of Asia and Europe, Meiolaniformes, which is known from the Cretaceous to Holocene of South America, Australia and Oceania, and "Spoochelys", known from the Mid-Cretaceous Griman Creek Formation of Australia. "Kallokibotion" from the Late Cretaceous of Europe is also considered part of this group.

The clade Perichelydia was created by W. G. Joyce in 2017. They are distinguished from other mesochelydians by two characters: the presence of "processus trochlearis oticum", and a closed "interpterygoid vacuity".
Q9129
Greek
Concept
Q713623
clade
Concept
Q20220074
Pantestudines
Concept
Q500054
Middle Jurassic
MEDIA
Q25445
Holocene
TIME
Q1462809
crown group
Concept
Q223044
Testudines
Concept
Q3489339
Helochelydridae
Concept
Q20817886
Sichuanchelyidae
Concept
Q500054
Middle Jurassic
MEDIA
Q76252
Paleocene
TIME
Q21226122
Meiolaniformes
MISC
None
Spoochelys
UNK
Q5609226
Griman Creek Formation
LOC
Q16568526
Kallokibotion
Concept
Q68334453
mesochelydia
MISC
Q64043742
Perichelydia
MISC
Q64043742
Perichelydia
MISC
2017-01-01T00:00:00Z^^http://www.w3.org/2001/XMLSchema#dateTime
2017
DATE
instance of
parent taxon
instance of
parent taxon