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Aethiini

Reptilia - Charadriiformes - Alcidae

Taxonomy
Aethiini is an unranked clade. It is extant. Its type is Aethia.

It was assigned to Fraterculinae by Smith (2011) and Smith (2014).

Synonymy list
YearName and author
2011Aethiini Smith p. 30 figs. Figure 14
2014Aethiini Smith p. 227

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RankNameAuthor
kingdomAnimalia()
—Bilateria
—EubilateriaAx 1987
—Deuterostomia
phylumChordataHaeckel 1874
subphylumVertebrata
superclassGnathostomata
—Osteichthyes()
subclassSarcopterygii()
subclassDipnotetrapodomorpha(Nelson 2006)
subclassTetrapodomorpha()
—Tetrapoda
—Reptiliomorpha
—Anthracosauria
subclassAmphibiosauriaKuhn 1967
—Cotylosauria()
—Amniota
—Sauropsida
classReptilia
subclassEureptilia()
—Romeriida
—Diapsida()
—Archosauromorpha(Huene 1946)
RankNameAuthor
—Crocopoda
—ArchosauriformesGauthier 1986
—Eucrocopoda
—Archosauria()
informalAvemetatarsalia
—Ornithodira
—Dinosauromorpha
—Dinosauriformes
—Dinosauria()
—Theropoda()
—Neotheropoda
—AverostraPaul 2002
—Tetanurae
—Coelurosauria()
—Maniraptora
—Paraves
classAves
orderCharadriiformesHuxley 1867
superfamilyAlcoidae(Stejneger 1885)
familyAlcidaeLeach 1820
subfamilyFraterculinae
—Aethiini
—Aethiini

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.

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G. Aethia Merrem 1788 [auklet]
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†Aethia barnesi Smith 2014
Aethia cristatella Pallas 1769 [crested auklet]
Aethia psittacula Pallas 1769 [parakeet auklet]
Aethia pusilla Pallas 1811 [least auklet]
Aethia pygmaea Gmelin 1789 [whiskered auklet]
†Aethia storeri Smith 2014
Invalid names: Aethia rossmoori Howard 1968 [nomen dubium], Cyclorrhynchus Kaup 1829 [synonym]
G. Ptychoramphus Brandt 1837
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Ptychoramphus aleuticus Pallas 1811 [Cassin's auklet]
+
Invalid names: Ptychoramphus tenuis Miller and Bowman 1958 [synonym]
Diagnosis
ReferenceDiagnosis
N. A. Smith 2014Aethiini, the clade composed of Aethia Merrem
1788 and Ptychoramphus von Brandt 1837, is diagnosed
based upon the following four apomorphies: maxillopalatine
process of the maxilla dorsoventrally flattened rather
than concave in ventral view (8:1); ventral margin of the
ventral palatine crest extends ventral to the lateralmargin of
the palatine (11:1); brachial tuberosity of coracoid rounded
rather than elongated (89:0); posterior end of dorsal iliac
spine blunt rather than pointed (207:1). These characters
could not be evaluated in the extinct taxa described below,
which are all known exclusively from humeri. However,
the humeri of Aethiini can be differentiated from those of
other alcids by the following combination of characters:
the distal margin of the humeral head in posterior view
is pointed (105:1) in all Aethiini except Aethia storeri,
rather than more rounded as in many other alcids (e.g.
Cerorhinca minor); the deltopectoral crest transitions to
the humeral shaft abruptly (108:1) rather than smoothly
as in many other alcids (e.g. Brachyramphus); the m.
supracoracoideus scar is shallowly excavated (115:1); the
m. supracoracoideus scar does not broaden proximally as
in Fraterculini; the secondary pneumotricipital fossa is
shallow (130:0) rather than moderately excavated as in
Fraterculini; in anterior view the capital groove appears
rounded as in Cerorhinca monocerata (140:0) rather than
a notch or a deep groove as in all other alcids; the dorsal
supracondylar process is a small dorsally pointing projection
(147:1) as in Brachyramphus; the ventral margin of the
ventral epicondyle is flared ventrally (rather than straight)
as in all Fraterculinae.
Measurements
No measurements are available
Composition: hydroxyapatiteo
Entire body: yeso
Adult length: 10 to < 100o
Adult width: 1.0 to < 10o
Adult height: 1.0 to < 10o
Architecture: compact or denseo
Ontogeny: accretion, modification of partso
Grouping: solitaryo
Environment: marineo
Locomotion: actively mobileo
Life habit: ground dwellingo
Diet: carnivoresubo
Reproduction: oviparouso
Dispersal: direct/internalo
Dispersal 2: mobileo
Created: 2017-04-17 10:41:05
Modified: 2017-04-17 10:41:05
Source: subo = suborder, o = order
References: Marsh 1875, Benton 1983, Bush and Bambach 2015

Age range

Maximum range based only on fossils: base of the Langhian to the top of the Holocene or 15.97000 to 0.00000 Ma
Minimum age of oldest fossil (stem group age): 11.62 Ma

Collections (33 total)


Time interval Ma Country or state Original ID and collection number
Langhian - Serravallian15.97 - 11.62USA (California) Aethia rossmoori (121152)
Tortonian11.62 - 7.246USA (California) Aethia sp. (13300) Aethia sp., Aethia sp. (50069)
Blancan4.9 - 1.8USA (California) Ptychoramphus tenuis (177990 177992 178007)
Piacenzian3.6 - 2.588USA (California) Ptychoramphus tenuis (19703)
Pleistocene2.588 - 0.0117USA (California) Ptychoramphus aleuticus (176093 176094 176095 176096 176098)
Middle Pleistocene0.774 - 0.129USA (California) Ptychoramphus aleuticus (20639)
Middle Pleistocene0.774 - 0.129Japan (Aomori) Aethia cristatella (101897)
Rancholabrean0.3 - 0.012USA (California) Ptychoramphus aleuticus (176091)
Rancholabrean - Holocene0.3 - 0.0USA (California) Ptychoramphus aleuticus (84904)
Late/Upper Pleistocene0.129 - 0.0117USA (California) Ptychoramphus aleuticus (120827 120828 120829 120830 123918 125234 125235 125236 125237 176102 215552)
Late/Upper Pleistocene0.129 - 0.0117Japan (Aomori) Aethia pusilla, Aethia cristatella (101898 210642)
Holocene0.0117 - 0.0USA (Alaska) Aethia psittacula (70587) Ptychoramphus aleuticus, Cyclorrhynchus psittacula, Aethia pusilla, Aethia cristatella, Aethia pygmaea (177178 177179)
Holocene0.0117 - 0.0USA (California) Ptychoramphus aleuticus (194880)