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Choanata

Taxonomy
Choanata was named by Säve-Söderbergh (1934). It is extant.

It was reranked as the infraclass Choanata by Miles (1977) and Gardiner (1982).

It was assigned to Gnathostomata by Säve-Söderbergh (1934); to Sarcopterygii by Miles (1977) and Gardiner (1982); to Dipnotetrapodomorpha by Nelson (2006); and to Sarcopterygii by Schultze and Reed (2012).

Sister taxa
Eutetrapoda, Stegocephali

Synonymy list
YearName and author
1934Choanata Säve-Söderbergh p. 8
1977Choanata Miles
1982Choanata Gardiner p. 228
2006Choanata Nelson
2012Choanata Schultze and Reed

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RankNameAuthor
kingdomAnimalia()
Bilateria
EubilateriaAx 1987
Life
Deuterostomia
phylumChordataHaeckel 1874
subphylumVertebrata
RankNameAuthor
superclassGnathostomata
Osteichthyes()
subclassSarcopterygii()
subclassDipnotetrapodomorpha(Nelson 2006)
Choanata
Choanata

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.

Unr. Choanata Säve-Söderbergh 1934
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Unr. Eutetrapoda Säve-Söderbergh 1934
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Unr. †Reptiliomorphoidea Huene 1954
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Invalid names: Anthrembolomeri Huene 1949 [empty]
Unr. †Sauromorphoidea Huene 1954
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Invalid names: Neosauromorpha Huene 1954 [empty]
Invalid names: Batrachomorpha Säve-Söderbergh 1934 [empty], Batrachomorphoidea Huene 1954 [empty], Theromorphoidea Huene 1954 [empty]
Unr. Stegocephali Cope 1868
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Or. †Adelospondyli Watson 1930
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Fm. †Adelogyrinidae Watson 1930
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G. †Adelogyrinus Watson 1928
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G. †Adelospondylus Carroll 1967
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Adelospondylus watsoni Carroll 1967
G. †Dolichopareias Watson 1928
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Dolichopareias disjectus Watson 1929
G. †Palaeomolgophis Brough and Brough 1967
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Palaeomolgophis scoticus Brough and Brough 1967
Fm. †Lysorophidae Williston 1908
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G. †Lysorocephalus Huene and Bock 1954
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Lysorocephalus gwyneddensis Huene and Bock 1954
Subor. †Branchiosauria
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G. †Micrerpeton Moodie 1909
G. †Goniocephalus Broili 1913
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Goniocephalus willistoni Broili 1913
Or. †Phyllospondyli Watson 1921
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Fm. †Peliontidae Cope 1875
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G. †Pelion Wyman
Invalid names: Eugyrinidae Watson 1940 [empty], Miobatrachidae Watson 1940 [empty]
Invalid names: Apoecospondyli Hay 1902 [empty], Embolospondyli Huene 1954 [empty], Ganocephala Owen 1859 [empty], Loxembolomeri Huene 1954 [empty], Neorhachitomi Efremov 1940 [empty]
Diagnosis
No diagnoses are available
Measurements
No measurements are available
Composition: phosphaticsubp
Environment: marinesubp
Locomotion: actively mobilec
Created: 2009-07-20 21:50:54
Modified: 2009-07-20 23:50:54
Source: c = class, subp = subphylum
References: Carroll 1988, Hendy et al. 2009

Age range

Maximum range based only on fossils: base of the Tournaisian to the top of the Late/Upper Triassic or 358.90000 to 201.30000 Ma
Minimum age of oldest fossil (stem group age): 346.7 Ma

Collections (16 total)


Time interval Ma Country or state Original ID and collection number
Tournaisian358.9 - 346.7United Kingdom (Scotland) Dolichopareias disjectus (175813)
Visean346.7 - 330.9United Kingdom (Scotland) Adelogyrinus simorhynchus (175811 176673) Dolichopareias disjectus (175812) Palaeomolgophis scoticus (174063)
Pendleian326.4 - 318.1United Kingdom (Scotland) Adelospondylus watsoni (174421)
Cisuralian298.9 - 272.3USA (West Virginia) Stegocephalia indet. (123877)
Permian298.9 - 252.17USA (West Virginia) Stegocephalia indet. (123878 123883)
Kungurian279.3 - 272.3USA (Texas) Goniocephalus willistoni (28267)
Wordian268.8 - 265.1Russian Federation Batrachomorpha indet. (197595)
Induan252.17 - 251.2Russian Federation (Orenburg) Batrachomorpha indet. (196045)
Spathian251.3 - 247.2Russian Federation (Orenburg) Batrachomorpha indet. (195825)
Spathian251.3 - 247.2Russian Federation (Bashkortostan) Batrachomorpha indet. (195806)
Anisian247.2 - 242.0Israel Stegocephalia sp. (63924)
Late/Upper Triassic237.0 - 201.3Madagascar (Toliara) Stegocephala indet. (106539)