Tantallognathus

Tantallognathus; Temporal range: late Tournaisian-early Visean PreꞒ Ꞓ O S D C P T J K Pg N
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Chordata
Clade:	Sarcopterygii
Clade:	Tetrapodomorpha
Clade:	Stegocephali
Genus:	†Tantallognathus; Chen et al., 2018
Type species
	†Tantallognathus woodi; Chen et al., 2018

Tantallognathus is an extinct genus of four-limbed vertebrate ("tetrapod") from the Mississippian of Scotland. It is based on a small jaw fragment which shows similarities to Crassigyrinus, baphetids, and crown group tetrapods. This fossil was found near Tantallon Castle (namesake of the genus), and the species name honors famed Scottish fossil collector Stan Wood. Tantallognathus is one of the most advanced tetrapods found in the Ballagan Formation, a geological unit known for a diverse fauna of stegocephalians. Like other Ballagan Formation vertebrates, it helps to clarify a pulse of tetrapod evolution during Romer's gap, a time interval when fossils of tetrapods and their relatives are otherwise very rare.^[1]

References

^ Chen, Donglei; Alavi, Yasaman; Brazeau, Martin D.; Blom, Henning; Millward, David; Ahlberg, Per E. (2017). "A partial lower jaw of a tetrapod from "Romer's Gap"". Earth and Environmental Science Transactions of the Royal Society of Edinburgh. 108 (1): 55–65. doi:10.1017/S1755691018000099. ISSN 1755-6910. S2CID 135127547.

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[1] Chen, Donglei; Alavi, Yasaman; Brazeau, Martin D.; Blom, Henning; Millward, David; Ahlberg, Per E. (2017). "A partial lower jaw of a tetrapod from "Romer's Gap"". Earth and Environmental Science Transactions of the Royal Society of Edinburgh. 108 (1): 55–65. doi:10.1017/S1755691018000099. ISSN 1755-6910. S2CID 135127547.

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