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Aethia (auklet)

Reptilia - Avetheropoda - Alcidae

Taxonomy
Aethia was named by Merrem (1788). It is extant. It is the type genus of Aethiini. It was considered monophyletic by Smith (2014).

It was assigned to Alcinae by Howard (1982); to Aethiini by Smith (2011) and Smith (2014); and to Alcidae by Howard (1968), Howard (1978), Olson (1985), Carroll (1988) and Clements et al. (2017).

Synonyms
Synonymy list
YearName and author
1788Aethia Merrem
1829Cyclorrhynchus Kaup
1968Aethia Howard p. 16
1968Aethia rossmoori Howard p. 16 figs. Fig. 2 I, J
1978Aethia Howard p. 21
1982Aethia Howard p. 3
1985Aethia Olson p. 183
1985Aethia rossmoori Olson p. 183
1988Aethia Carroll
2011Aethia Smith p. 30 figs. Figure 14
2014Aethia Smith p. 228
2017Aethia Clements et al.

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RankNameAuthor
kingdomAnimalia()
Triploblastica
Nephrozoa
Deuterostomia
phylumChordataHaeckel 1847
subphylumVertebrata
superclassGnathostomata
Osteichthyes()
Sarcopterygii
subclassDipnotetrapodomorpha(Nelson 2006)
subclassTetrapodomorpha()
Tetrapoda()
Reptiliomorpha
Anthracosauria
Batrachosauria()
Cotylosauria()
Amniota
Sauropsida
classReptilia
subclassEureptilia()
Romeriida
Diapsida()
Eosuchia()
Neodiapsida
SauriaGauthier 1984
Archosauromorpha(Huene 1946)
RankNameAuthor
Crocopoda
ArchosauriformesGauthier 1986
Eucrocopoda
Archosauria()
informalAvemetatarsalia
Ornithodira
Dinosauromorpha
Dinosauriformes
Dinosauria()
Saurischia()
Theropoda()
Neotheropoda
AverostraPaul 2002
Tetanurae
orderAvetheropoda
suborderCoelurosauria
Maniraptora
Paraves
classAves
orderCharadriiformesHuxley 1867
Panalcidae
familyAlcidaeLeach 1820
subfamilyFraterculinae
Aethiini
genusAethiaMerrem 1788

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.

Diagnosis
ReferenceDiagnosis
N. A. Smith 2014Aethia is differentiated from Ptychoramphus
based upon the following four locally optimized apomorphies:
possession of a lateral sternal fenestra rather than
an unenclosed lateral sternal notch (66:1); distal extent of
articulation facet for manual digit II:1 level with articulation
facet for manual digit III:1 (196:0); post-acetabular
dorsal iliac crest broadens (205:0), rather than narrows;
nest site a natural crevice rather than a bare rock (266:1).
As with the diagnostic characters of Aethiini, these characters
could not be evaluated in the extinct taxa described
below, which are known only from humeri. There are no
autapomorphies of the humerus of Ptychoramphus aleuticus
that differentiate the humeri of that species from the
humeri of Aethia species. Ptychoramphus tenuis is known
only from an isolated tarsometatarsus.