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Palaeospheniscus bergi

Reptilia

Taxonomy
Palaeospheniscus bergi was named by Moreno and Mercerat (1891). Its type specimen is Museo de La Plata, a set of limb elements (humerus, radius, tarsometatarsus), and it is a 3D body fossil. Its type locality is Cerro del Castillo, Trelew, which is in an Aquitanian/Burdigalian shallow subtidal sandstone in the Gaiman Formation of Argentina.

It was recombined as Paraspheniscus bergi by Ameghino (1905), Lambrecht (1933), Simpson (1946) and Brodkorb (1963).

Synonyms
Synonymy list
YearName and author
1891Palaeospheniscus bergi Ameghino p. 447
1891Palaeospheniscus bergi Moreno and Mercerat
1899Palaeospheniscus gracilis Ameghino
1901Palaeospheniscus nereius Ameghino p. 81
1905Neculus rothi Ameghino
1905Pseudospheniscus convexus Ameghino
1905Palaeospheniscus medianus Ameghino p. 108 figs. Plate 1, Fig 6a
1905Palaeospheniscus planus Ameghino p. 109 figs. Plate 1, Fig. 7a
1905Palaeospheniscus rothi Ameghino p. 110 figs. Plate 2, Fig. 8a
1905Palaeospheniscus gracilis Ameghino p. 111
1905Paraspheniscus bergi Ameghino p. 115
1905Paraspheniscus nereius Ameghino p. 116
1905Pseudospheniscus interplanus Ameghino p. 123
1905Pseudospheniscus concavus Ameghino p. 124 figs. Plate 3, Fig. 20
1905Neculus rothi Ameghino p. 127
1905Pseudospheniscus convexus Ameghino p. 164 figs. Plate III, Fig. 20
1905Pseudospheniscus planus Ameghino p. 164 figs. Plate III, Fig. 19
1933Palaeospheniscus medianus Lambrecht p. 227
1933Palaeospheniscus planus Lambrecht p. 227
1933Palaeospheniscus rothi Lambrecht p. 227
1933Palaeospheniscus gracilis Lambrecht p. 228
1933Paraspheniscus bergi Lambrecht p. 228
1933Paraspheniscus nereius Lambrecht p. 229
1933Pseudospheniscus concavus Lambrecht p. 230
1933Pseudospheniscus interplanus Lambrecht p. 230
1933Neculus rothi Lambrecht p. 231
1946Palaeospheniscus gracilis Simpson p. 24
1946Neculus rothi Simpson p. 26
1946Palaeospheniscus medianus Simpson p. 26
1946Palaeospheniscus planus Simpson p. 26
1946Palaeospheniscus rothi Simpson p. 26
1946Paraspheniscus nereius Simpson p. 29
1946Paraspheniscus bergi Simpson p. 30
1946Pseudospheniscus concavus Simpson p. 30
1963Palaeospheniscus gracilis Brodkorb p. 236
1963Palaeospheniscus rothi Brodkorb p. 237
1963Paraspheniscus bergi Brodkorb p. 238
1963Paraspheniscus nereius Brodkorb p. 238
1963Neculus rothi Brodkorb p. 240
1963Pseudospheniscus concavus Brodkorb p. 240
1963Pseudospheniscus interplanus Brodkorb p. 240
1972Palaeospheniscus bergi Simpson p. 7
1972Palaeospheniscus gracilis Simpson p. 7
2007Palaeospheniscus bergi Acosta Hospitaleche
2008Palaeospheniscus bergi Acosta Hospitaleche and Tambussi p. 115
2023Palaeospheniscus bergi Tambussi et al. p. 273

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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
subclassNeornithesGadow 1893
Aequornithes
Feraequornithes
superorderProcellariimorphae
Sphenisciformes(Sharpe 1891)
subfamilyPalaeospheniscinae
genusPalaeospheniscus
speciesbergi

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.

Palaeospheniscus bergi Moreno and Mercerat 1891
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Invalid names: Palaeospheniscus concavus Ameghino 1905 [synonym], Palaeospheniscus gracilis Ameghino 1899 [synonym], Palaeospheniscus interplanus Ameghino 1905 [synonym], Palaeospheniscus planus Ameghino 1905 [synonym], Palaeospheniscus rothi Ameghino 1905 [synonym], Pseudospheniscus convexus Ameghino 1905 [synonym]
Diagnosis
ReferenceDiagnosis
C. Acosta Hospitaleche and C. Tambussi 2008Tarsometatarsus. Slender, in accordance with the smaller size of the genus, total length between 28 and 36 mm and an elongation index between 2.06 and 2.16.