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Madrynornis mirandus

Osteichthyes - Spheniscidae

Taxonomy
Madrynornis mirandus was named by Acosta Hospitaleche et al. (2007). Its type specimen is MEF-PV 100, a skeleton (nearly complete and articulated skeleton with well-preserved feather impressions), and it is a 3D body fossil. Its type locality is Playa Villarino, which is in a Tortonian marine horizon in the Puerto Madryn Formation of Argentina.

Synonymy list
YearName and author
2007Madrynornis mirandus Acosta Hospitaleche et al. p. 301 figs. Figs. 2-7
2008Madrynornis mirandus Acosta Hospitaleche and Tambussi p. 123
2018Madrynornis mirandus Degrange et al. p. 1
2023Madrynornis mirandus Tambussi et al. p. 273

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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()
—Archosauromorpha(Huene 1946)
—Crocopoda
—ArchosauriformesGauthier 1986
RankNameAuthor
—Eucrocopoda
—Archosauria()
informalAvemetatarsalia
—Ornithodira
—Dinosauromorpha
—Dinosauriformes
—Dinosauria()
—Saurischia()
—Theropoda()
—Neotheropoda
—AverostraPaul 2002
—Tetanurae
—Coelurosauria()
—Maniraptora
—Paraves
classAves
subclassNeornithesGadow 1893
—Aequornithes
—Feraequornithes
superorderProcellariimorphae
—Sphenisciformes(Sharpe 1891)
familySpheniscidaeBonaparte 1831
genusMadrynornis
speciesmirandus

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.

†Madrynornis mirandus Acosta Hospitaleche et al. 2007
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Diagnosis
ReferenceDiagnosis
C. Acosta Hospitaleche and C. Tambussi 2008Crista occipitalis transversa expanded
into posterolaterally directed wings (not developed in Pygo- scelis), fossa temporalis more triangular and deeper than in Paraptenodytes, processus postorbitalis slender and longer than in Spheniscus, arcus jugalis slightly curved compared to that in Eudyptes and Pygoscelis, interorbital region nar- rower than in Spheniscus and Eudyptes. Sulcus glandulae nasalis without an external edge as in Spheniscus and Par- aptenodytes (edge present in Pygoscelis); lamina parasphe- noidalis broader than in all living species. Ramus mandibiularis straight with the fossa retroarticularis longer than in Paraptenodytes and Spheniscus, and extending beyond the fossa articularis quadratica.
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 10:40:01
Modified: 2017-04-17 10:40:01
Source: subo = suborder, o = order
References: Bush and Bambach 2015, Benton 1983, Marsh 1875, Kiessling 2004

Age range: Tortonian or 11.63000 to 7.24600 Ma

Collections: one only


Time interval Ma Country or state Original ID and collection number
Tortonian11.63 - 7.246Argentina (Chubut) Madrynornis mirandus (type locality: 74614)