PBDB Taxon

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Anaschisma

Amphibia - Temnospondyli - Metoposauridae

Taxonomy

Anaschisma was named by Branson (1905).

It was synonymized subjectively with Metoposaurus by Chowdhury (1965); it was synonymized subjectively with Dictyocephalus by Davidow-Henry (1987); it was misspelled as Anaschima by Carroll (1988) and Hunt (1989); it was considered a nomen dubium by Hunt (1993) and Schoch and Milner (2000).

It was assigned to Metoposauridae by Watson (1919), Carroll (1988) and Hunt (1989).

Species

A. browni (syn. A. brachygnatha, Borborophagus wyomingensis, Koskinonodon perfectus, Koskinonodon princeps, Buettneria calgariensis, Kalamoiketer pinkleyi, Buettneria howardensis)

Synonyms

Koskinonodon was named by Branson and Mehl (1929).

It was synonymized subjectively with Metoposaurus by Chowdhury (1965); it was synonymized subjectively with Buettneria by Hunt (1993), Long and Murry (1995) and Schoch and Milner (2000); it was synonymized subjectively with Anaschisma by Gee et al. (2020).

It was assigned to Metoposauridae by Branson and Mehl (1929) and Mueller (2007).
Borborophagus was named by Branson and Mehl (1929).

It was synonymized subjectively with Metoposaurus by Chowdhury (1965); it was synonymized subjectively with Buettneria by Hunt (1993), Long and Murry (1995) and Schoch and Milner (2000); it was synonymized subjectively with Anaschisma by Gee et al. (2020).

It was assigned to Metoposauridae by Branson and Mehl (1929).
Kalamoiketer was named by Branson and Mehl (1929).

It was synonymized subjectively with Metoposaurus by Chowdhury (1965); it was synonymized subjectively with Buettneria by Long and Murry (1995).
Buettneria was named by Case (1922). Its type is Buettneria perfecta.

It was synonymized subjectively with Metoposaurus by Chowdhury (1965); it was replaced with Koskinonodon by Mueller (2007); it was synonymized subjectively with Anaschisma by Gee et al. (2020).

It was assigned to Stegosauria by Marsh (1882); and to Metoposauridae by Hunt (1989), Hunt (1993), Long and Murry (1995), Schoch and Milner (2000) and Irmis (2005).

Synonymy list

Year	Name and author
1882	Buettneria Marsh
1905	Anaschisma Branson p. 570
1919	Anaschima Watson p. 67
1922	Buettneria Case p. 13 figs. 1-6; Pl. 1-4
1929	Borborophagus Branson and Mehl
1929	Kalamoiketer Branson and Mehl
1929	Koskinonodon Branson and Mehl
1929	Borborophagus Branson and Mehl p. 65 fig. 10
1988	Anaschima Carroll
1989	Anaschisma Hunt p. 297 fig. 1
1989	Buettneria Hunt p. 297 fig. 1
1993	Buettneria Hunt
1995	Buettneria Long and Murry
2000	Buettneria Schoch and Milner
2005	Buettneria Irmis p. 67
2007	Koskinonodon Mueller p. 225

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

Rank	Name	Author
class	Amphibia
order	Temnospondyli	()
—	Eutemnospondyli
—	Rhachitomi	()
—	Eryopiformes
—	Stereospondylomorpha
—	Stereospondyli	()
—	Superstes
—	Trematosauria
superfamily	Trematosauroidea
family	Metoposauridae
genus	Anaschisma

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.

G. †Anaschisma Branson 1905

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†Anaschisma browni Branson 1905

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Invalid names: Anaschisma brachygnatha Branson 1905 [synonym], Borborophagus wyomingensis Branson and Mehl 1929 [synonym], Koskinonodon perfectus Case 1922 [synonym]

Invalid names: Borborophagus Branson and Mehl 1929 [synonym], Buettneria Case 1922 [synonym], Koskinonodon Branson and Mehl 1929 [synonym]

Diagnosis

No diagnoses are available