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Aberratiodontus wui

Reptilia - Yanornithiformes - Yanornithidae

Taxonomy
Aberratiodontus wui was named by Gong et al. (2004). Its type specimen is LHV0001a,b, a skeleton (A nearly completely articulated skeleton), and it is a compression preserving soft parts. Its type locality is Shangheshou, which is in an Aptian lacustrine sandstone/mudstone in the Jiufotang Formation of China. It is the type species of Aberratiodontus.

It was synonymized subjectively with Yanornis martini by Zhou and Wang (2010).

Synonymy list
YearName and author
2004Aberratiodontus wui Gong et al.

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RankNameAuthor
kingdomAnimalia()
Bilateria
EubilateriaAx 1987
Life
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()
Tetanurae
Coelurosauria()
Maniraptora
Paraves
classAves
PygostyliaChiappe 2002
Ornithothoraces
OrnithuromorphaChiappe et al. 1999
subclassOrnithurae
orderYanornithiformes
familyYanornithidae
genusAberratiodontus
specieswui

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.

Aberratiodontus wui Gong et al. 2004
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Diagnosis
ReferenceDiagnosis
E. Gong et al. 2004The holotype is a primitive enantiornithine bird about twice as large as Longipteryx (Zhang et al., 2001). The skull is situated lower and has a well-developed postorbital. The quadrate is like a pillar at the lower region and expanded in the upper region. The furcula differs from that of any other known enantiomithine birds (Sanz et al., 1995; Sanz and Chiappe, 1996), and is similar to that of Confuciusomis (Hou et al., 1999b) or Archaeopteryx (Martin, 1995); but its clavicular branch is longer than those of other known enantiornithine birds. The lateral process of the coracoids is well-developed at the distal end and the scapula is curved externally at the distal end, which differs from that of Confuciusornis and Archaeopteryx. The fact that this bird has the largest number of teeth (up to 21 teeth on the lower jaw of each side) among all of the known early birds is significant. The rows of teeth show characteristics of pseudoheterodont and set it apart from those of the other early birds. The teeth on the rostral side are thin and fine, and the front cheek teeth are very large, like “dentes canini”, and then like Eoenantiornis (Hou et al., 1999a), the middle cheek teeth become smaller, and the biggest teeth are in the back. Additionaly, on the rows of teeth there are some new teeth in different developmental stages. The new teeth grew out of the insides of the rows of teeth, which is similar to what was found in Archaeopteryx (Mixtin, 1991; Howgate, 1984) and crocodilian (Cong et al., 1998).
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: terrestrialo
Locomotion: actively mobileo
Life habit: ground dwellingo
Diet: carnivoresubo
Reproduction: oviparouso
Dispersal: direct/internalo
Dispersal 2: mobileo
Created: 2009-01-03 20:39:15
Modified: 2009-01-03 22:39:15
Source: subo = suborder, o = order
References: Marsh 1875, Benton 1983

Age range: Aptian or 125.00000 to 113.00000 Ma

Collections: one only


Time interval Ma Country or state Original ID and collection number
Aptian125.0 - 113.0China (Liaoning) Aberratiodontus wui (type locality: 79518)