Stahleckeriidae

Stahleckeriidae is a family of dicynodont therapsids whose fossils are known from the Triassic of North America, South America, Asia and Africa.^[2]

Stahleckeriids Temporal range: Triassic, Induan–Rhaetian PreꞒ Ꞓ O S D C P T J K Pg N
Mounted skeleton of Ischigualastia jenseni
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Chordata
Clade:	Synapsida
Clade:	Therapsida
Suborder:	†Anomodontia
Clade:	†Dicynodontia
Clade:	†Kannemeyeriiformes
Family:	†Stahleckeriidae Cox, 1965
Subgroups
†Sungeodon? †Woznikella[1] †Placeriinae †Argodicynodon †Lisowicia †Moghreberia †Placerias †Pentasaurus †Zambiasaurus †Stahleckeriinae †Eubrachiosaurus †Ischigualastia †Jachaleria †Sangusaurus †Stahleckeria †Ufudocyclops

Classification

Phylogeny

Below is a cladogram from Szczygielski and Sulej (2023):^[3]

Stahleckeriidae	Placeriinae Zambiasaurus Pentasaurus Lisowicia Moghreberia Placerias Stahleckeriinae Stahleckeria Eubrachiosaurus Sangusaurus Ischigualastia Jachaleria

Genera

Genus	Status	Age	Location	Description	Images
Argodicynodon	Valid	Norian[4]	United States
Eubrachiosaurus	Valid	Norian[5]	United States
Ischigualastia	Valid	Carnian	Argentina
Lisowicia	Valid	Late Norian — Early Rhaetian?	Poland
Jachaleria	Valid	Norian[6]	Argentina and Brazil
Moghreberia	Valid	Carnian	Morocco
Placerias	Valid	Norian[7]	United States
Pentasaurus	Valid	Late Triassic	South Africa
Sangusaurus	Valid	Anisian	Zambia
Stahleckeria	Valid	Ladinian	Brazil and Namibia
Sungeodon?	Valid	Induan	China	Initially identified as a stahleckeriid, possibly a more basal genus.
Ufudocyclops	Valid	Anisian?	South Africa
Woznikella[1]	Valid	Carnian	Germany and Poland
Zambiasaurus	Valid	Anisian	Zambia

References

1. Szczygielski, T.; Sulej, T. (2023). "Woznikella triradiata n. gen., n. sp. – a new kannemeyeriiform dicynodont from the Late Triassic of northern Pangea and the global distribution of Triassic dic ynodonts". Comptes Rendus Palevol. 22 (16): 279–406. doi:10.5852/cr-palevol2023v22a16.
2. Kammerer, C. F.; Fröbisch, J. R.; Angielczyk, K. D. (2013). Farke, Andrew A (ed.). "On the Validity and Phylogenetic Position of Eubrachiosaurus browni, a Kannemeyeriiform Dicynodont (Anomodontia) from Triassic North America". PLOS ONE. 8 (5): e64203. Bibcode:2013PLoSO...864203K. doi:10.1371/journal.pone.0064203. PMC 3669350. PMID 23741307.
3. Szczygielski, T.; Sulej, T. (2023). "Woznikella triradiata n. gen., n. sp. – a new kannemeyeriiform dicynodont from the Late Triassic of northern Pangea and the global distribution of Triassic dicynodonts". Comptes Rendus Palevol. 22 (16): 279–406. doi:10.5852/cr-palevol2023v22a16.
4. Mueller, B. D.; Huttenlocker, A. K.; Small, B. J.; Pinto, J. L.; Dean-Wallace, K.; Chatterjee, S. (2023). "A new kannemeyeriiform dicynodont (Synapsida) from a Late Triassic vertebrate assemblage in west Texas, U.S.A." Journal of Vertebrate Paleontology. e2255236. doi:10.1080/02724634.2023.2255236.
5. Kammerer, C. F.; Fröbisch, J. R.; Angielczyk, K. D. (2013). Farke, Andrew A. (ed.). "On the Validity and Phylogenetic Position of Eubrachiosaurus browni, a Kannemeyeriiform Dicynodont (Anomodontia) from Triassic North America". PLOS ONE. 8 (5): e64203. Bibcode:2013PLoSO...864203K. doi:10.1371/journal.pone.0064203. PMC 3669350. PMID 23741307.
6. Kammerer, C. F.; Ordoñez, M. D. (2021). "Dicynodonts (Therapsida: Anomodontia) of South America". Journal of South American Earth Sciences. 108: 103171. Bibcode:2021JSAES.10803171K. doi:10.1016/j.jsames.2021.103171. S2CID 233565963.
7. Irmis, Randall B.; Mundil, Roland; Martz, Jeffrey W.; Parker, William G. (2011-09-15). "High-resolution U–Pb ages from the Upper Triassic Chinle Formation (New Mexico, USA) support a diachronous rise of dinosaurs". Earth and Planetary Science Letters. 309 (3): 258–267. Bibcode:2011E&PSL.309..258I. doi:10.1016/j.epsl.2011.07.015. ISSN 0012-821X.