The Cryptobranchoidea are a suborder of salamanders found in Asia, European Russia, and the United States. They are known as primitive salamanders, in contrast to Salamandroidea, the advanced salamanders.[1] It has two living subdivisions, Cryptobranchidae (Asian giant salamanders and hellbenders), and Hynobiidae, commonly known as Asian salamanders.
Giant salamanders are obligate paedomorphs with partial metamorphosis,[2] but Asiatic salamander goes through a full metamorphosis. The only known exceptions are the Longdong stream salamander, which has been documented as facultatively neotenic, and the Ezo salamander, where a now assumed extinct population from Lake Kuttarush in Hokkaido had neotenic traits like gills in adults.[3]
The oldest members of the group are known from the Middle Jurassic (Bathonian) aged Yanliao Biota of China.[4]
^Heying, Heather. "ADW:Family Cryptobranchidae: giant salamanders and hellbenders".
^Evidence for complex life cycle constraints on salamander body form diversification
^Osteology of Batrachuperus londongensis (Urodela, Hynobiidae): study of bony anatomy of a facultatively neotenic salamander from Mount Emei, Sichuan Province, China
^Jia, Jia; Anderson, Jason S.; Gao, Ke-Qin (2021-07-23). "Middle Jurassic stem hynobiids from China shed light on the evolution of basal salamanders". iScience. 24 (7): 102744. doi:10.1016/j.isci.2021.102744. ISSN 2589-0042. PMC 8264161. PMID 34278256.
The Cryptobranchoidea are a suborder of salamanders found in Asia, European Russia, and the United States. They are known as primitive salamanders, in...
late Permian, and initially were similar to modern members of the Cryptobranchoidea. Their resemblance to lizards is the result of symplesiomorphy, their...
Asiatic salamanders belonging to the family Hynobiidae—within the Cryptobranchoidea, one of two main divisions of living salamanders. The largest species...
and this conclusion has been supported by subsequent analyses. The Cryptobranchoidea and the Salamandroidea, also known as Diadectosalamandroidei, are...
List of amphibian genera lists the vertebrate class of amphibians by genus, spanning two superorders. Frogs Family Alytidae - sometimes called Discoglossidae...
to forage for worms, insects and other invertebrates. The suborder Cryptobranchoidea contains the primitive salamanders. A number of fossil cryptobranchids...
Middle to Late Jurassic Yanliao Biota of China. These belong to the Cryptobranchoidea, which contains living Asiatic and giant salamanders. Beiyanerpeton...
salamanders (family Cryptobranchidae), with which they form the suborder Cryptobranchoidea. About half of hynobiids currently described are endemic to Japan...
Amphibians are ectothermic, tetrapod vertebrates of the class Amphibia. All living amphibians belong to the group Lissamphibia. They inhabit a wide variety...
Antarctica, sub-Saharan Africa, and Oceania. They differ from suborder Cryptobranchoidea as the angular and prearticular bones in their lower jaws are fused...
group of modern salamanders. A 2021 study found it to be a member of Cryptobranchoidea outside of Cryptobranchidae. In 2022 a more extensive analysis, with...
This is a checklist of amphibians found in Northern America, based mainly on publications by the Society for the Study of Amphibians and Reptiles. The...
has been described, Iridotriton hechti. It is likely a member of Cryptobranchoidea. Paleontology portal Prehistoric amphibian List of prehistoric amphibians...
who enter a nesting site. Paternal care has also been observed in Cryptobranchoidea, the other suborder with external fertilization. This is critical...
Animalia Phylum: Chordata Class: Amphibia Order: Urodela Suborder: Cryptobranchoidea Genus: †Pangerpeton Wang & Evans, 2006 Type species †Pangerpeton sinensis...
Siphonopidae Family Typhlonectidae (aquatic caecilians) Suborder Cryptobranchoidea Family Cryptobranchidae (giant salamanders) Family Hynobiidae (Asiatic...
Animalia Phylum: Chordata Class: Amphibia Order: Urodela Suborder: Cryptobranchoidea Genus: †Regalerpeton Zhang et al., 2009 Species R. weichangensis Zhang...
Jia; Ke-Qin Gao (2019). "A new stem hynobiid salamander (Urodela, Cryptobranchoidea) from the Upper Jurassic (Oxfordian) of Liaoning Province, China"...
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