List of Lobe-finned (Sarcopterygian) fish genera and families that survived that Permian-Triassic Extinction Event 252 Million Years ago

[Joseph Fossil]

The Sarcopterygian fish (also called lobed-fined fish) are an ancient group of fish that emerged in the Late Silurian 425 Million Years ago and gave rise to the direct ancestors of the first land vertebrates, the amphibians during the Late Devonian. Today represented by the still living Coelacanths and Lungfish, These fish were incredibly common and diverse during the late Paleozoic. But the Permian-Triassic Extinction Event 252 Million Years ago nearly decimated the group. 

 

But thankfully some of the Sacopterygii survived and all living Sarcopterygians and trace their origins to these few hardy survivors. Here's a list of all currently known Sacropterygian fish genera and families that survived the Permian-Triassic Extinction Event. If I forget any examples, please let me know and I'll add the examples to the list promptly.

 

 

Sarcopterygii

 

 

Dipnoi (Lungfish) 

 

Gnathorhiza (Dipnoid) (Carboniferous-Early Triassic, 318.1-247.2 Million Years ago)

 

http://www.fossilworks.org/cgi-bin/bridge.pl?a=taxonInfo&taxon_no=90709

 

https://www.researchgate.net/publication/278743788_Environmental_significance_of_lungfish_burrows_Gnathorhiza_within_Lower_Permian_Wolfcampian_paleosols_of_the_US_midcontinent

 

https://www.researchgate.net/publication/291808594_The_westernmost_occurrence_of_Gnathorhiza_in_the_Triassic_with_a_discussion_of_the_stratigraphic_and_palaeogeographic_distribution_of_the_genus

 

 

Ceratodontiformes 

 

https://www.researchgate.net/publication/284186167_The_first_find_of_Permian_ceratodontids_Dipnoi_Osteichthyes_in_Russia

 

 

 

Coelacanthiformes (Coelacanth fish)

 

Coelacanthus (Coelacanthid) (Carboniferous-Early Triassic, 314.6-247.2 Million Years ago)

 

http://www.fossilworks.org/cgi-bin/bridge.pl?a=taxonInfo&taxon_no=34911

 

https://www.researchgate.net/publication/226724498_Erratum_to_A_coelacanthid-rich_site_at_Hasbergen_NW_Germany_taphonomy_and_palaeoenvironment_of_a_first_systematic_excavation_in_the_Kupferschiefer_Upper_Permian_Lopingian

 

https://www.researchgate.net/publication/265184906_Coelacanths_from_the_Middle_Triassic_Luoping_Biota_Yunnan_South_China_with_the_earliest_evidence_of_ovoviviparity

 

 

I hope you all find this list helpful!!!