PBDB Taxon

Basic info	Taxonomic history	Classification	Included Taxa
Morphology	Ecology and taphonomy	External Literature Search	Age range and collections

Diademodon tetragonus

Osteichthyes

Taxonomy

Diademodon tetragonus was named by Seeley (1894).

Sister species lacking formal opinion data

D. kannemeyeri

Synonyms

Cragievarus kitchingi was named by Brink (1965).

It was synonymized subjectively with Diademodon tetragonus by Hopson and Kitching (1972).
Diademodon laticeps was named by Brink (1955). It is not extant.

It was synonymized subjectively with Diademodon tetragonus by Hopson and Kitching (1972).
Diademodon rhodesiensis was named by Brink (1963). It is a 3D body fossil. Its type locality is Locality 16, Upper Luangwa Valley, 0.75 miles north Sitwe, which is in an Anisian terrestrial mudstone/sandstone in the Ntawere Formation of Zambia.

It was synonymized subjectively with Diademodon tetragonus by Abdala and Ribeiro (2010).
Diademodon parringtoni was named by Brink (1955).

It was synonymized subjectively with Diademodon tetragonus by Hopson and Kitching (1972).
Diademodon ontomophonus was named by Seeley (1908).

It was synonymized subjectively with Diademodon tetragonus by Hopson and Kitching (1972).

Synonymy list

Year	Name and author
1894	Diademodon tetragonus Seeley
1908	Diademodon ontomophonus Seeley
1955	Diademodon laticeps Brink
1955	Diademodon parringtoni Brink
1963	Diademodon rhodesiensis Brink
1965	Cragievarus kitchingi Brink
2009	Diademodon tetragonus Martinelli et al.

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Rank	Name	Author
kingdom	Animalia	()
—	Bilateria
—	Eubilateria	Ax 1987
—	Deuterostomia
phylum	Chordata	Haeckel 1874
subphylum	Vertebrata
superclass	Gnathostomata
class	Osteichthyes
subclass	Sarcopterygii	()
subclass	Dipnotetrapodomorpha	(Nelson 2006)
subclass	Tetrapodomorpha	()
—	Tetrapoda
—	Reptiliomorpha

Rank	Name	Author
—	Anthracosauria
subclass	Amphibiosauria	Kuhn 1967
—	Cotylosauria	()
—	Amniota
subclass	Synapsida
—	Therapsida	()
infraorder	Cynodontia	()
—	Epicynodontia
infraorder	Cynognathia
—	Gomphodontia	(Seeley 1895)
genus	Diademodon	Seeley 1895
species	tetragonus	Seeley 1894

If no rank is listed, the taxon is considered an unranked clade in modern classifications. Ranks may be repeated or presented in the wrong order because authors working on different parts of the classification may disagree about how to rank taxa.

†Diademodon tetragonus Seeley 1894

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Invalid names: Cragievarus kitchingi Brink 1965 [synonym], Diademodon laticeps Brink 1955 [synonym], Diademodon ontomophonus Seeley 1908 [synonym], Diademodon parringtoni Brink 1955 [synonym], Diademodon rhodesiensis Brink 1963 [synonym]

Diagnosis

No diagnoses are available

Measurements

No measurements are available

Composition:

phosphaticsubp

Environment:

terrestrialuc

Locomotion:

actively mobilec

Created:

2017-04-17 15:15:35

Modified:

2017-04-17 15:15:35

Source: c = class, subp = subphylum, uc = unranked clade

References: Carroll 1988, Kiessling 2004, Hendy et al. 2009

Age range: base of the Anisian to the top of the Julian or 246.70000 to 233.60000 Ma

Collections (7 total)

Time interval	Ma	Country or state	Original ID and collection number
Anisian	246.7 - 241.464	Namibia	Diademodon tetragonus (99457)
Anisian	246.7 - 241.464	South Africa (Eastern Cape)	Diademodon tetragonus (92312 101957 177025 197000)
Anisian	246.7 - 241.464	Zambia	Diademodon rhodesiensis (99436)
Julian	237.0 - 233.6	Argentina (Mendoza)	Diademodon tetragonus (98604)