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Dasornis emuinus

Reptilia - Odontopterygiformes - Pelagornithidae

Taxonomy
Lithornis emuinus was named by Bowerbank (1854). It is a 3D body fossil. Its type locality is Isle of Sheppey (BMNH collection), which is in a Ypresian marine claystone in the London Clay Formation of the United Kingdom.

It was recombined as Megalornis emuinus by Seeley (1866); it was recombined as Argillornis emuinus by Harrison and Walker (1976), Harrison and Walker (1977), Mlikovsky (2002) and Bourdon (2005); it was recombined as Dasornis emuinus by Mayr (2008), Mayr and Smith (2010), Bourdon et al. (2010), Bourdon and Cappetta (2012), Cenizo et al. (2015) and Mayr and Smith (2019).

Synonyms
Synonymy list
YearName and author
1854Lithornis emuinus Bowerbank p. 263
1859Lithornis emuinus Gervais p. 421
1866Megalornis emuinus Seeley p. 110
1870Dasornis londinensis Owen
1878Argillornis longipennis Owen
1909Argillornis longipennis Dollo p. 111
1933Argillornis longipennis Lambrecht p. 282
1933Dasornis londinensis Lambrecht p. 578
1934Dasornis londinensis Swinton p. 2
1976Dasornis londinensis Harrison and Walker p. 24
1976Argillornis emuinus Harrison and Walker p. 26
1976Argillornis longipennis Harrison and Walker p. 27
1977Neptuniavis miranda Harrison and Walker p. 9 figs. Figs. 2-3
1977Argillornis emuinus Harrison and Walker p. 19
1977Dasornis londinensis Harrison and Walker p. 19
1977Argillornis longipennis Harrison and Walker p. 20
1985Dasornis londinensis Olson p. 195
2002Neptuniavis miranda Mlikovsky p. 78
2002Argillornis emuinus Mlikovsky p. 83
2002Argillornis longipennis Mlikovsky p. 83
2002Dasornis londinensis Mlikovsky p. 83
2005Argillornis emuinus Bourdon p. 587 figs. Fig. 2
2008Dasornis emuinus Mayr p. 1108
2010Dasornis emuinus Bourdon et al. p. 39
2010Dasornis emuinus Mayr and Smith p. 369
2012Dasornis emuinus Bourdon and Cappetta p. 965
2015Dasornis emuinus Cenizo et al. p. 10 figs. Figure 7
2019Dasornis emuinus Mayr and Smith p. 255

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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()
RankNameAuthor
—Archosauromorpha(Huene 1946)
—Crocopoda
—ArchosauriformesGauthier 1986
—Eucrocopoda
—Archosauria()
informalAvemetatarsalia
—Ornithodira
—Dinosauromorpha
—Dinosauriformes
—Dinosauria()
—Theropoda()
—Neotheropoda
—AverostraPaul 2002
—Tetanurae
—Coelurosauria()
—Maniraptora
—Paraves
classAves
orderOdontopterygiformesHoward 1957
familyPelagornithidaeFürbringer 1888
genusDasornisOwen 1870
speciesemuinus(Bowerbank 1854)

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.

†Dasornis emuinus Bowerbank 1854
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Invalid names: Argillornis longipennis Owen 1878 [synonym], Dasornis londinensis Owen 1870 [synonym], Neptuniavis miranda Harrison and Walker 1977 [synonym]
Diagnosis
ReferenceDiagnosis
E. Bourdon et al. 2010Gigantic odontopterygiform with a wingspan of 3.5–4.5 m, which differs from Dasornis toliapica in the following features: much larger size; cranium, sutura frontoparietalis more pronounced, forming curved groove; lamina parasphenoidalis caudorostrally shorter; caudal extension of cotyla quadratica otici longer and twisted ventrally; foramen pneumaticum dorsale smaller; laterosphenoid hollow triangular owing to the relatively smaller size of the prominentia lobi optici; tibiotarsus with longer sulcus musculi fibularis.
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: marinef
Locomotion: actively mobileo
Life habit: ground dwellingo
Diet: carnivoresubo
Reproduction: oviparouso
Dispersal: direct/internalo
Dispersal 2: mobileo
Created: 2017-04-17 10:40:43
Modified: 2017-04-17 10:40:43
Source: f = family, subo = suborder, o = order
References: Bush and Bambach 2015, Marsh 1875, Benton 1983

Age range: base of the Early/Lower Eocene to the top of the Lutetian or 55.80000 to 41.30000 Ma

Collections (8 total)


Time interval Ma Country or state Original ID and collection number
Ypresian56.0 - 47.8Belgium (West Flanders) Dasornis emuinus (68430)
Ypresian56.0 - 47.8Morocco Dasornis emuinus (83313 91363)
Ypresian56.0 - 47.8United Kingdom (England) Argillornis longipennis (8050) Lithornis emuinus, Dasornis londinensis, Argillornis longipennis (type locality: 13299)
Ypresian56.0 - 47.8Morocco (Oued Zem) Dasornis emuinus (35132)
Early/Lower Eocene55.8 - 48.6United Kingdom Dasornis londinensis, Argillornis longipennis, Neptuniavis miranda (215472)
Lutetian47.8 - 41.3Belgium (Brussels) Argillornis longipennis (124686)