|Basic info||Taxonomic history||Classification||Relationships|
|Morphology||Ecology and taphonomy||External Literature Search||Age range and collections|
Reptilia - Avetheropoda - Alcidae
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).
|Year||Name and author|
|1968||Aethia Howard p. 16|
|1968||Aethia rossmoori Howard p. 16 figs. Fig. 2 I, J|
|1978||Aethia Howard p. 21|
|1982||Aethia Howard p. 3|
|1985||Aethia Olson p. 183|
|1985||Aethia rossmoori Olson p. 183|
|2011||Aethia Smith p. 30 figs. Figure 14|
|2014||Aethia Smith p. 228|
|2017||Aethia Clements et al.|
Is something missing? Join the Paleobiology Database and enter the data
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.
|N. A. Smith 2014||Aethia 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.