List of the Ancient Chondricthyans genuses and families that survived the Permian-Triassic Extinction Event 252 Million Years ago

[Joseph Fossil]

The Permian-Trassic Extinction event of 252 Million Years (caused by massive volcanic eruptions in what is now Siberia) was one of the biggest mass extinctions in Earth's history (killing 75% of all land genera and 95% of all marine genera). The event marked the end of the Paleozoic the and beginning of the Mesozoic. Famous survivors of the extinction event include the Dicynodont Lystrosaurus, the Therocephalians Moschorhinus, Tetracynodon, Promoschorhynchus, the Archosaur Proterosuchus, the Amphibian Broomistega, and the Cynodont Thrinaxodon.

 

But in the decimated realm of the Oceans, one resilient group of fish beat the odds and survived the extinction event...the Chondrichthyans!!!

 

Both Ancient groups of Chondricthyans and the Ancestors of today's Sharks and Rays survived the Great Dying. The Chondricthyans's survival served a crucial role in establishing balance to the nearly destroyed Marine and Freshwater Ecosystems, a role they still proudly and effectively play to the present day. In celebration of this group and to encourage greater respect, protection, and conservation these animals deserve, here's a list of all the currently known Chondricthyan genuses and families that survived the Permian-Trassic Extinction Event.

 

If I forget any examples, please let me know and I'll the examples to the list promptly.

 

Eugeneodontids

 

Caseodus (Eugeneodontid) (Carboniferous-Early Triassic, 306.95-247.2 Million Years ago)

http://www.fossilworks.org/cgi-bin/bridge.pl?a=taxonInfo&taxon_no=34451

 

https://www.researchgate.net/publication/249552180_New_eugeneodontid_sharks_from_the_Lower_Triassic_Sulphur_Mountain_Formation_of_Western_Canada

 

 

Fadenia (Eugeneodontid) (Carboniferous-Early Triassic, 314.6-247.2 Million Years ago)

http://www.fossilworks.org/cgi-bin/bridge.pl?a=taxonInfo&taxon_no=34456

 

https://www.researchgate.net/publication/249552180_New_eugeneodontid_sharks_from_the_Lower_Triassic_Sulphur_Mountain_Formation_of_Western_Canada

 

 

Ctenacanthiformes

 

https://www.nature.com/articles/ncomms3669

https://www.sbpbrasil.org/revista/edicoes/8_2/8(2)mutter.pdf

https://www.tandfonline.com/doi/abs/10.1080/08912963.2018.1539971?journalCode=ghbi20

 

 

Listracanthidae

 

Listracanthus (Listracanthid) (Carboniferous-Early Triassic, 326.4-247.2 Million Years ago)

http://www.fossilworks.org/cgi-bin/bridge.pl?a=taxonInfo&taxon_no=151730

 

https://www.app.pan.pl/archive/published/app51/app51-271.pdf

 

 

Falcatidae

 

https://www.tandfonline.com/doi/abs/10.1080/08912963.2018.1539971?journalCode=ghbi20

 

 

Hybodontiformes

 

Lissodus (Hybodontid) (Early Carboniferous-Late Cretaceous, 345.3-66 Million Years ago)

http://www.fossilworks.org/cgi-bin/bridge.pl?a=taxonInfo&taxon_no=34501

 

https://research-information.bris.ac.uk/ws/portalfiles/portal/34500507/423991.pdf

 

 

Omanoselache (Hybodontid) (Late Permian-Late Triassic, 268.0-221.5 Million Years ago)

http://www.fossilworks.org/cgi-bin/bridge.pl?a=taxonInfo&taxon_no=262009

 

https://onlinelibrary.wiley.com/doi/full/10.1111/j.1475-4983.2012.01199.x

 

https://dialnet.unirioja.es/servlet/tesis?codigo=298243

 

 

http://www.fossilworks.org/cgi-bin/bridge.pl?a=taxonInfo&taxon_no=34498

https://bpb-eu-w2.wpmucdn.com/blogs.bristol.ac.uk/dist/5/537/files/2019/07/2013ESR.pdf

https://research-information.bris.ac.uk/ws/portalfiles/portal/34500507/423991.pdf

 

Xenacanthiformes

 

Pleuracanthus (Xenacanthid) (Carboniferous-Middle Triassic, 314.6-235.0 Million Years ago)

http://www.fossilworks.org/cgi-bin/bridge.pl?a=taxonInfo&taxon_no=209484

 

https://core.ac.uk/download/pdf/149235994.pdf

 

 

Triodus (Xenacanthid) (Carboniferous-Late Triassic, 318.1-212.1 Million Years ago)

http://www.fossilworks.org/cgi-bin/bridge.pl?a=taxonInfo&taxon_no=105053

 

https://nmgs.nmt.edu/publications/guidebooks/downloads/56/56_p0319_p0334.pdf

 

 

Neoselachii

 

Synechodus (Neoselachian) (Permian-Eocene, 296-41.3 Million Years ago)

http://www.fossilworks.org/cgi-bin/bridge.pl?a=taxonInfo&taxon_no=34673

 

https://www.researchgate.net/publication/228487527_Early_Permian_chondrichthyans_of_the_Middle_and_South_Urals

 

https://www.duo.uio.no/bitstream/handle/10852/96918/Synn-veMoSaugen_MasterThesis.pdf?sequence=1

 

 

I hope you all find this list helpful!!!

[rocket]

3 minutes ago, Joseph Fossil said:

The Permian-Trassic Extinction event of 252 Million Years (caused by massive volcanic eruptions in what is now Siberia) was one of the biggest mass extinctions in Earth's history (killing 75% of all land genera and 95% of all marine genera). The event marked the end of the Paleozoic the and beginning of the Mesozoic. Famous survivors of the extinction event include the Dicynodont Lystrosaurus, the Therocephalians Moschorhinus, Tetracynodon, Promoschorhynchus, the Archosaur Proterosuchus, the Amphibian Broomistega, and the Cynodont Thrinaxodon.

 

 

If I forget any examples, please let me know and I'll the examples to the list promptly.

 

 

I hope you all find this list helpful!!!

 

Helpful? Thats more than helpful, great work and thanks a lot! 

[siteseer]

Nice list.  One correction, though.  The plural of genus is genera.

[Joseph Fossil]

9 hours ago, siteseer said:

Nice list.  One correction, though.  The plural of genus is genera.

 

@siteseer Thanks for the tip!!!

[Joseph Fossil]

18 hours ago, rocket said:

 

Helpful? Thats more than helpful, great work and thanks a lot! 

 

@rocket Thanks dude! I appreciate it!!

[Joseph Fossil]

Also here are some more additional Chondricthyan taxon.

 

Chimaeroidea

 

http://www.fossilworks.org/cgi-bin/bridge.pl?a=taxonInfo&taxon_no=285293

https://academic.oup.com/mbe/article/27/11/2576/1121974

 

 

Neoselachii

 

Nemacanthus (Neoselachian)(Permian-Triassic, 268-201 Million Years ago)

http://www.fossilworks.org/cgi-bin/bridge.pl?a=taxonInfo&taxon_no=34668

 

https://onlinelibrary.wiley.com/doi/full/10.1111/j.1475-4983.2012.01199.x

 

https://www.researchgate.net/publication/328183978_Chondrichthyans_from_the_Grippia_bonebed_Early_Triassic_of_Marmierfjellet_Spitsbergen

 

[Joseph Fossil]

Also here are some more additional Chondricthyan taxon.

 

Jalodontidae 

https://www.researchgate.net/publication/353415934_Youngest_jalodontid_shark_from_the_Triassic_of_Europe_and_a_revision_of_the_Jalodontidae

 

 

Hybodontiformes

Acrodus (Hybodontid) (Early Permian-Early Paleocene, 298.9-55.8 Million Years ago)
http://www.fossilworks.org/cgi-bin/bridge.pl?a=taxonInfo&taxon_no=34478

 

https://www.uv.es/everlab/PUBLICACIONES/2020/Dankina2020_Article_ALatePermianIchthyofaunaFromTh.pdf

 

https://sjpp.springeropen.com/articles/10.1186/s13358-023-00269-3

 

Polyacrodus (Hybodontid) (Late Permian-Late Cretaceous, 279.5-70.6 Million Years ago)
http://www.fossilworks.org/cgi-bin/bridge.pl?a=taxonInfo&taxon_no=34508

 

https://www.researchgate.net/publication/228487527_Early_Permian_chondrichthyans_of_the_Middle_and_South_Urals

 

https://fr.copernicus.org/articles/6/147/2003/fr-6-147-2003.pdf

 

 

Ctenacanthiformes

Amelacanthus (Ctenacanthid) (Early Carboniferous-Early Triassic, 360.7-247.2 Million Years ago)
http://www.fossilworks.org/cgi-bin/bridge.pl?a=taxonInfo&taxon_no=34480

 

https://www.researchgate.net/publication/270395486_New_hybodontiform_and_neoselachian_sharks_from_the_Lower_Triassic_of_Oman

 

 

Neoselachii

Polyfaciodus (Neoselachian) (Late Permian-Early Triassic, 252.1-247.2 Million Years ago)
http://www.fossilworks.org/cgi-bin/bridge.pl?a=taxonInfo&taxon_no=328388

 

https://www.researchgate.net/publication/270395486_New_hybodontiform_and_neoselachian_sharks_from_the_Lower_Triassic_of_Oman

 

[Joseph Fossil]

Also here are some more additional Chondricthyan taxon.

 

Eugeneodontids

 

Helicampodus (Eugeneodontid) (Late Permian-Early Triassic, 254.0-251.3 Million Years ago)

http://www.fossilworks.org/cgi-bin/bridge.pl?a=taxonInfo&taxon_no=34458

 

https://www.semanticscholar.org/paper/Elasmobranchs-from-the-Lower-Triassic-Sulphur-near-Mutter-Blanger/23975103a7be511734ad9a7aea924ae4d66e06a4

 

https://research-information.bris.ac.uk/ws/portalfiles/portal/34500507/423991.pdf