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Nyctiphruretus acudens

Reptilia - Nyctiphruretidae

Taxonomy
Nyctiphruretus acudens was named by Efremov (1938). Its type specimen is PIN 158/5, a skull, and it is a 3D body fossil. Its type locality is Kiselikha, PIN 158, Lower Mezen' River, which is in a Kazanian/Urzhumian terrestrial horizon in the Russian Federation.

Synonymy list
YearName and author
1938Nyctiphruretus acudens Efremov p. 775 fig. 4
1946Nyctiphruretus acudens Colbert p. 260
1962Nyctiphruretus acudens Olson p. 21
2008Nyctiphruretus acudens Ivakhnenko
2010Nyctiphruretus acudens Saila

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RankNameAuthor
kingdomAnimalia()
—Bilateria
—EubilateriaAx 1987
—Deuterostomia
phylumChordataHaeckel 1874
subphylumVertebrata
superclassGnathostomata
—Osteichthyes()
subclassSarcopterygii()
subclassDipnotetrapodomorpha(Nelson 2006)
subclassTetrapodomorpha()
—Tetrapoda
RankNameAuthor
—Reptiliomorpha
—Anthracosauria
subclassAmphibiosauriaKuhn 1967
—Cotylosauria()
—Amniota
—Sauropsida
classReptilia
subclassParareptiliaLawrence 1868
familyNyctiphruretidae
genusNyctiphruretus
speciesacudens

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.

†Nyctiphruretus acudens Efremov 1938
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Diagnosis
ReferenceDiagnosis
I. A. Efremov 1938Skull short with huge orbits and bluntly rounded snout. Nostrils close to one another and separated by a narrow partition. The bones of the skull roof are sculptured radially.
The occipital surface is obliquely turned backwards with temporal cavities and occipital lateral processes wanting. Teeth erect with bluntly apexes, without any traces of differentiation.. Bones of the ventral surfaces of the skull are covered with chagreen relief, and besides there are 4 nearly straight tooth rows on each pterygoideum.
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: Hendy et al. 2009, Carroll 1988

Age range: base of the Late/Upper Kazanian to the top of the Urzhumian or 272.50000 to 264.28000 Ma

Collections (7 total)


Time interval Ma Country or state Original ID and collection number
Late/Upper Kazanian - Urzhumian272.5 - 264.28Russian Federation (Arkhangelsk) Nyctiphruretus acudens (type locality: 79948 187646 187647 187648 187649 187650 187653)