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Hylonomidae

Amphibia - Hylonomidae

Taxonomy
Hylonomidae was named by Fritsch (1883). It is not extant. Its type is Hylonomus.

It was assigned to Microsauria by Hay (1902); and to Microsauria by Moodie (1916) and Kuhn (1946).

Subtaxa
Smilerpeton

Synonymy list
YearName and author
1883Hylonomidae Fritsch p. 159
1902Hylonomidae Hay p. 412
1916Hylonomidae Moodie pp. 47, 78
1946Hylonomidae Kuhn p. 52

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RankNameAuthor
kingdomAnimalia()
—Bilateria
—EubilateriaAx 1987
—Deuterostomia
phylumChordataHaeckel 1874
subphylumVertebrata
superclassGnathostomata
—Osteichthyes()
subclassSarcopterygii()
RankNameAuthor
subclassDipnotetrapodomorpha(Nelson 2006)
subclassTetrapodomorpha()
—Tetrapoda
classAmphibia
—Lepospondyli()
—Microsauria()
familyHylonomidaeFritsch 1883
familyHylonomidaeFritsch 1883

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.

Fm. †Hylonomidae Fritsch 1883
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G. †Smilerpeton Dawson 1882
Diagnosis
ReferenceDiagnosis
R. L. Moodie 1916Body slender and lizard-like; skull narrow, with smooth or faintly sculptured bones; neural spines of vertebras well developed, and long, slender ribs. Teeth smooth, or with grooved summits. The whole body covered with sculptured scutes. Internal gills may be developed. (from Lydekker, 1890, based on Fritsch, 1883-1899).