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Roxochelys wanderleyi

Osteichthyes - Testudines

Taxonomy
Roxochelys wanderleyi was named by Price (1953). Its type specimen is DGM 216-R, a shell, and it is a 3D body fossil. Its type locality is Between Jupiá and Araçatuba (Km 101-104), which is in a Campanian/Maastrichtian terrestrial horizon in the Adamantina Formation of Brazil. It is the type species of Roxochelys.

Synonyms
Synonymy list
YearName and author
1953Roxochelys wanderleyi Price
1981Roxochelys wanderleyi Campos and de Broin
2005Cambaremys langertoni França and Langer p. 395 figs. 2-8
2007Cambaremys langertoni Oliveira and Romano
2007Roxochelys wanderleyi Oliveira and Romano
2014Cambaremys langertoni de la Fuente et al.
2014Roxochelys wanderleyi de la Fuente et al.
2018Roxochelys wanderleyi Ferreira et al.
2023Roxochelys wanderleyi Bogado et al.

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RankNameAuthor
kingdomAnimalia()
Bilateria
EubilateriaAx 1987
Deuterostomia
phylumChordataHaeckel 1874
subphylumVertebrata
superclassGnathostomata
classOsteichthyes
subclassSarcopterygii()
subclassDipnotetrapodomorpha(Nelson 2006)
subclassTetrapodomorpha()
Tetrapoda
Reptiliomorpha
RankNameAuthor
Anthracosauria
subclassAmphibiosauriaKuhn 1967
Cotylosauria()
Amniota
Sauropsida
classReptilia
Testudinata(Oppel 1811)
orderTestudinesBatsch 1788
suborderPleurodira
Pelomedusoides(Broin 1988)
superfamilyPodocnemidoidae
genusRoxochelys
specieswanderleyi

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.

Roxochelys wanderleyi Price 1953
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Invalid names: Cambaremys langertoni França and Langer 2005 [synonym]
Diagnosis
ReferenceDiagnosis
G. S. Ferreira et al. 2018A medium-size Podocnemidoidae (more than 300 mm of carapace length) with a shell surface with ne sculpturing composed of small polygons; vertebral scutes 2–4 hexagonal and narrower than the pleural scutes; a relatively short and wide nuchal bone (in comparison to other non-Podocnemididae Podocnemidoidae), with a wide anterior edge; four-sided rst neural bone; axillary buttress extending onto costal bones 2 and reaching the peripheral bones 3 anteriorly; suture for axillary buttress medially broad and laterally narrow; costal bones 2 thickened around the axillary buttress suture; bridge peripheral bones ungut- tered; iliac scar on costal bone 7 with concave anterior out- line that crosses from costal bone 8 onto costal bone 7 both medially and laterally; internal gutter of posterior peripheral bones and pygal bone absent; gular scutes restricted to the epiplastra; intergular scute relatively wide; long midline contact between humeral scutes; pectoral scutes reach the entoplastron but not the epiplastra or mesoplastra.
J. P. Bogado et al. 2023Roxochelys wanderleyi can be distinguished from other Podocnemidoidae due to the combination of the following characteristics: shell surface with sculpturing composed of a network of well-developed and relatively deep grooves (compared to other Podocnemidoidae), forming a mosaic of small polygons in low-relief; vertebral scutes 2–4 hexagonal; a relatively short and wide nuchal bone (in comparison to other non-sided first neural; axillary buttress extending onto costal bones 2 and reaching the peripheral bones 3 anteriorly; suture for axillary buttress medially broad and laterally narrow; costal bones 2 thickened around the axillary buttress suture; pleuro-marginal sulci in the bridge peripherals not deeply incised (opposed to other Late Cretaceous and Palaeogene pelomedusoids); iliac scar on costal bone 7 with concave anterior outline that crosses from costal bone 8 onto costal bone 7 both medially and laterally; internal gutter of posterior peripheral bones and pygal bone absent; anterior plastral lobe with a short semi-circular projection in the cranialmost extremity of the epiplastra, ventrally limited by the gular-extragular sulci; extragular scutes restricted to the epiplastra; gular scute relatively wide; long midline contact between humeral scutes; pectoral scutes reach the entoplastron but not the epiplastra or mesoplastra.
Measurements
No measurements are available
Composition: phosphaticsubp
Environment: freshwatersubo
Locomotion: actively mobilec
Life habit: amphibioussubo
Diet: omnivoresubo
Reproduction: oviparoussubo
Created: 2005-08-26 14:50:50
Modified: 2005-08-26 16:50:50
Source: subo = suborder, c = class, subp = subphylum
References: Carroll 1988, Uetz 2005, Hendy et al. 2009, Kiessling 2004

Age range: Late/Upper Maastrichtian or 72.20000 to 66.00000 Ma

Collections (5 total)


Time interval Ma Country or state Original ID and collection number
Late/Upper Campanian - Early/Lower Maastrichtian83.6 - 66.0Brazil (São Paulo) Roxochelys wanderleyi (120506 182522 type locality: 189029 231097)
Late/Upper Maastrichtian72.2 - 66.0Brazil (Minas Gerais) Chelonia indet. (32346)