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Leptosomiformes

Osteichthyes - Leptosomiformes

Taxonomy
Leptosomiformes was named by Sharpe (1891). It is extant.

It was assigned to Aves by del Hoyo et al. (2014); and to Neornithes by Clements et al. (2017).

Subtaxa
Leptosomidae, Plesiocathartes, Waltonavis
Entered
by M. Clapham on 2018-04-11; modified by G. Lloyd on 2019-12-05

Synonymy list
YearName and author
1891Leptosomiformes Sharpe
2014Leptosomiformes del Hoyo et al.
2017Leptosomiformes Clements et al.

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RankNameAuthor
kingdomAnimalia()
—Bilateria
—EubilateriaAx 1987
—Deuterostomia
phylumChordataHaeckel 1874
subphylumVertebrata
superclassGnathostomata
classOsteichthyes
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
subclassNeornithesGadow 1893
orderLeptosomiformesSharpe 1891
orderLeptosomiformesSharpe 1891

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.

Or. Leptosomiformes Sharpe 1891
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Fm. Leptosomidae Bonaparte 1850
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G. Leptosomus Vieillot 1816
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Leptosomus discolor Hermann 1783 [Cuckoo roller]
G. †Plesiocathartes Gaillard 1908
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†Plesiocathartes europaeus Gaillard 1908
†Plesiocathartes gaillardi Crusafont and Villalta 1955
†Plesiocathartes insolitipes Mayr and Kitchener 2023
G. †Waltonavis Mayr and Kitchener 2023
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†Waltonavis danielsi Mayr and Kitchener 2023
†Waltonavis paraleptosomus Mayr and Kitchener 2023
Diagnosis
No diagnoses are available
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: Kiessling 2004, Benton 1983, Marsh 1875

Age range

Maximum range based only on fossils: base of the Late/Upper Paleocene to the top of the Holocene or 59.24000 to 0.00000 Ma
Minimum age of oldest fossil (stem group age): 56.0 Ma

Collections (8 total)


Time interval Ma Country or state Original ID and collection number
Late/Upper Paleocene59.24 - 56.0France (Oise) Leptosomiformes indet. (166598)
Ypresian56.0 - 48.07Belgium (West Flanders) Plesiocathartes sp. (68430)
Ypresian56.0 - 48.07United Kingdom (England) Plesiocathartes insolitipes, Waltonavis paraleptosomus, Waltonavis danielsi (224382)
MP 1148.07 - 41.03Germany (Hessen) Plesiocathartes kelleri (120798)
Late/Upper Eocene - Early/Lower Oligocene37.71 - 27.3France Plesiocathartes europaeus (13325)
Late/Upper Pleistocene - Holocene0.129 - 0.0Madagascar Leptosomus discolor (195018)
Holocene0.0117 - 0.0Madagascar (Beanka) Leptosomus discolor (205190 205193)