Chroniosuchia

Chroniosuchia; Temporal range: Middle Permian–Upper Triassic PreꞒ Ꞓ O S D C P T J K Pg N
	Suchonica
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Chordata
Clade:	Reptiliomorpha (?)
Order:	†Chroniosuchia; Kuhn, 1970
Subgroups
	See text.
Synonyms
	Chroniosuchida Tatarinov, 1972;

Chroniosuchia is a group of

therapsids, or to strengthen the axial skeleton for terrestrial locomotion. Indeed, femoral microanatomy of Chroniosaurus suggests that it was amphibious to terrestrial.^[5]

Description

The most distinguishing features of chroniosuchians are the rows of interlocking bony plates called

neural arches of vertebra by an extension of bone on their undersurfaces. The front margin of each osteoderm has a pair of "anterior wings" that slip into a notch in the posterior margin of the osteoderm in front of it.^[6]

Bystrowiella schumanni

.

Chroniosuchians are distinguished from other early reptiliomorphs by the lack of

body of the vertebra while the intercentrum is small and wedge-like.^[6]

Classification

Taxonomy

Reptiliomorpha
Order Chroniosuchia
- Family Bystrowianidae
  - Axitectum
  - Bystrowiana
  - Bystrowiella^[2]
  - Dromotectum
  - Hassiacoscutum
  - Jiyuanitectum
  - Synesuchus
- Family Chroniosuchidae
  - Chroniosaurus
  - Chroniosuchus
  - Ingentidens^[7]
  - Jarilinus^[8]
  - Madygenerpeton^[1]
  - Phratochronis^[7]
  - Uralerpeton^[9]
  - Suchonica^[10]
  - Laosuchus

Phylogeny

Below is the cladogram showing the preferred phylogeny of Buchwitz et al. (2012):^[6]

Chroniosuchia

Madygenerpeton

Chroniosaurus dongusensis

Chroniosaurus levis

	Synesuchus

	Bystrowiella

Bystrowiana

	Axitectum

	Dromotectum

Chroniosuchidae

Gallery

References

^
doi:10.1111/j.1096-3642.2009.00613.x
.

^
S2CID 8161364
.

doi:10.1111/j.1475-4983.2012.01137.x
.

ISBN 978-0-520-26647-6
.

S2CID 13808379
.

^
doi:10.1111/j.1475-4983.2012.01137.x
.

^ ^a ^b Jin-Ling Li; Zheng-Wu Cheng (1999). "New Anthracosaur and Temnospondyl Amphibians from Gansu, China - The Fifth Report on Late Permian Dashankou Lower Tetrapod Fauna" (PDF). Vertebrata PalAsiatica. 37 (3): 234–247.

^ V. K. Golubev (1998). "Revision of the Late Permian Chroniosuchians (Amphibia, Anthracosauromorpha) from Eastern Europe" (PDF). Paleontological Journal. 32 (4): 390–401.

^ V. K. Golubev (1998). "Narrow-armored Chroniosuchians (Amphibia, Anthracosauromorpha) from the Late Permian of Eastern Europe" (PDF). Paleontological Journal. 32 (3): 278–287.

^ V. K. Golubev (1999). "A New Narrow-Armored Chroniosuchian (Amphibia, Anthracosauromorpha) from the Upper Permian of Eastern Europe" (PDF). Paleontological Journal. 33 (2): 166–173.

External links

at Paleos [1]

Retrieved from "https://en.wikipedia.org/w/index.php?title=Chroniosuchia&oldid=1219663042"

[MadygenerSchoch-1] 
doi:10.1111/j.1096-3642.2009.00613.x
.

[Witzmann08-2] 
S2CID 8161364
.

[Buchwitz12-3] :10.1111/j.1475-4983.2012.01137.x
.

[4] ISBN 978-0-520-26647-6
.

[Laetal04-5] S2CID 13808379
.

[BFKV12-6] 
doi:10.1111/j.1475-4983.2012.01137.x
.

[Li&Cheng99-7] Jin-Ling Li; Zheng-Wu Cheng (1999). "New Anthracosaur and Temnospondyl Amphibians from Gansu, China - The Fifth Report on Late Permian Dashankou Lower Tetrapod Fauna" (PDF). Vertebrata PalAsiatica. 37 (3): 234–247.

[Golubev98-8] V. K. Golubev (1998). "Revision of the Late Permian Chroniosuchians (Amphibia, Anthracosauromorpha) from Eastern Europe" (PDF). Paleontological Journal. 32 (4): 390–401.

[Golubev98a-9] V. K. Golubev (1998). "Narrow-armored Chroniosuchians (Amphibia, Anthracosauromorpha) from the Late Permian of Eastern Europe" (PDF). Paleontological Journal. 32 (3): 278–287.

[Golubev99-10] V. K. Golubev (1999). "A New Narrow-Armored Chroniosuchian (Amphibia, Anthracosauromorpha) from the Upper Permian of Eastern Europe" (PDF). Paleontological Journal. 33 (2): 166–173.

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