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Microsauria

Amphibia

Taxonomy
Microsauria was named by Dawson (1863). It is not extant. It was considered paraphyletic by Laurin et al. (2000).

It was reranked as the suborder Microsauria by Cope (1875), Hay (1902) and Moodie (1909); it was reranked as the subclass Microsauria by Jaekel (1911); it was synonymized subjectively with Lepospondyli by Swinton (1934); it was misspelled as Microsauri by Gadow (1898), Moodie (1916), Perrier (1928), Roxo (1937), Kuhn (1946), Huene (1954), Olson and Barghusen (1962), Olson (1970), Haubold (1971), Daly (1973), Haubold (1974), Carroll and Gaskill (1978), Thayer (1985), Carroll (1988), Gauthier et al. (1989), Carroll (1991) and Carroll et al. (1998); it was reranked as the unranked clade Microsauria by Gardiner (1982), Reisz and Modesto (1996) and Laurin et al. (2000).

It was assigned to Reptilia by Dawson (1863); to Lepospondyli by Gadow (1898); to Stegocephali by Cope (1875) and Hay (1902); to Stegocephala by Moodie (1909); to Miosauria by Jaekel (1911); to Prosauria by Perrier (1928); to Prosauria by Roxo (1937); to Stegocephalia by Kuhn (1946); to Reptiliomorphoidea by Huene (1954); to Lepospondylia by Moodie (1916) and Haubold (1974); to Amniota by Gardiner (1982); to Lepospondyli by Olson (1970), Haubold (1971), Daly (1973), Thayer (1985) and Carroll (1988); to Tetrapoda by Gauthier et al. (1989); to Amphibia by Olson and Barghusen (1962), Carroll and Gaskill (1978) and Carroll (1991); and to Lepospondyli by Reisz and Modesto (1996), Carroll et al. (1998) and Laurin et al. (2000).

Synonymy list
YearName and author
1863Microsauria Dawson p. 47
1875Microsauria Cope p. 11
1898Microsauri Gadow p. 12
1902Microsauria Hay p. 410
1909Microsauria Moodie p. 39
1911Microsauria Jaekel p. 117
1916Microsauria Moodie p. 47
1928Microsauria Perrier p. 3117
1937Microsauria Roxo p. 42
1946Microsauria Kuhn p. 52
1954Microsauria Huene p. 19
1962Microsauria Olson and Barghusen p. 13
1970Microsauria Olson p. 403
1971Microsauria Haubold p. 11
1973Microsauria Daly p. 571
1974Microsauria Haubold p. 24
1978Microsauria Carroll and Gaskill pp. 4, 13
1982Microsauria Gardiner p. 228
1985Microsauria Thayer p. 690
1988Microsauria Carroll
1989Microsauria Gauthier et al. p. 339
1991Microsauria Carroll p. 229
1996Microsauria Reisz and Modesto pp. 704, 708
1998Microsauria Carroll et al. p. xi
2000Microsauria Laurin et al. p. 120 fig. 2b

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RankNameAuthor
kingdomAnimalia()
—Bilateria
—EubilateriaAx 1987
—Deuterostomia
phylumChordataHaeckel 1874
subphylumVertebrata
superclassGnathostomata
—Osteichthyes()
RankNameAuthor
subclassSarcopterygii()
subclassDipnotetrapodomorpha(Nelson 2006)
subclassTetrapodomorpha()
—Tetrapoda
classAmphibia
—Lepospondyli()
—Microsauria()
—Microsauria()

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. †Microsauria Dawson 1863
show all | hide all
G. †Altenglanerpeton Glienke 2012
+
G. †Amblyodon Dawson 1882
G. †Archerpeton Carroll 1964
+
Invalid names: Archerpeton anthracos Carroll 1964 [nomen dubium]
G. †Barillopus Matthew 1903
+
†Barillopus arctus Matthew 1904
†Barillopus confusus Matthew 1904
†Barillopus unguifer Matthew 1903
G. †Cymatorhiza Olson and Barghusen 1962
+
†Cymatorhiza kittsi Olson and Barghusen 1962
G. †Dromillopus Matthew 1904
+
†Dromillopus celer Matthew 1903
†Dromillopus obtusus Matthew 1904
†Dromillopus quadrifidus Matthew 1904
G. †Eurythorax Cope 1871
+
†Eurythorax sublaevis Cope 1871
Fm. †Hylonomidae Fritsch 1883
+
G. †Smilerpeton Dawson 1882
G. †Hyphasma Cope 1875
+
†Hyphasma laevis Cope 1875
Fm. †Microbrachidae Fritsch 1883
+
G. †Microbrachis Fric 1876
+
†Microbrachis mollis Fritsch 1883
†Microbrachis pelikani Fritsch 1875
+
Invalid names: Microbrachis branchiophorus Fritsch 1883 [synonym]
Subor. †Microbrachomorpha Carroll and Gaskill 1978
+
Fm. †Hyloplesiontidae Carroll and Gaskill 1978
+
G. †Hyloplesion Fritsch 1883
+
†Hyloplesion longicostatum Fritsch 1875
Fm. †Odonterpetontidae Carroll and Gaskill 1978
+
G. †Odonterpeton Moodie 1909
+
†Odonterpeton triangulare Moodie 1909
G. †Novascoticus Carroll 1966
+
†Novascoticus multidens Dawson 1882
G. †Ornithoides Matthew 1903
+
†Ornithoides adamsi Matthew 1904
†Ornithoides trifidus Dawson 1895
G. †Paramicrobrachis Kuhn 1959
+
G. †Pariostegus Cope 1868
+
†Pariostegus myops Cope 1868
Fm. †Ptyoniidae Cope 1875
+
G. †Lepterpeton Wright and Huxley 1866
+
†Lepterpeton dobbsii Wright and Huxley 1866
G. †Puertollanopus Soler-Gijón and Moratalla 2001
+
†Puertollanopus omicrodactylus Soler-Gijón and Moratalla 2001
G. †Saxonerpeton Carroll and Gaskill 1978
+
†Saxonerpeton geinitzi Credner 1890
G. †Stenichnus Gilmore 1927
+
†Stenichnus yakiensis Gilmore 1927
G. †Thyrsidium Cope 1875
+
Subor. †Tuditanomorpha Carroll and Gaskill 1978
+
Fm. †Goniorhynchidae Carroll and Gaskill 1978
+
G. †Rhynchonkos Schulze and Foreman 1981
+
†Rhynchonkos stovalli Olson 1970
Fm. †Hapsidopareiidae Marjanović and Laurin 2019
+
Invalid names: Hapsidopareiontidae Daly 1973 [replaced]
Fm. †Trihecatontidae Vaughn 1972
+
G. †Trihecaton Vaughn 1972
+
†Trihecaton howardinus Vaughn 1972
Fm. †Tuditanidae Cope 1875
+
G. †Boii Carroll 1966
+
†Boii crassidens Fritsch 1876
G. †Crinodon Carroll and Gaskill 1978
+
†Crinodon limnophyes Steen 1938
G. †Tuditanus Cope 1871
+
†Tuditanus punctulatus Cope 1875
G. †Utaherpeton Carroll et al. 1991
+
†Utaherpeton franklini Carroll et al. 1991
Invalid names: Haplosauri Jaekel 1911 [empty], Protritonidae Nicholson and Lydekker 1889 [empty], Sauropleuridae Hay 1902 [empty], Urosauri Jaekel 1911 [empty]
Diagnosis
ReferenceDiagnosis
E. Perrier 1928
Petits Reptiles pourvus d'une armature dermique dorsale et d'une armature ventrale. Côtes bifurquées. (Longtemps rapportés aux Batraciens Stégocéphales).