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Macrogryphosaurus gondwanicus

Reptilia

Taxonomy
Macrogryphosaurus gondwanicus was named by Calvo et al. (2007). Its type specimen is MUCPv-321, a set of postcrania, and it is not a trace fossil. Its type locality is Lago Mari Menuco [MUCP], which is in a Coniacian/Coniacian terrestrial horizon in the Sierra Barrosa Formation of Argentina.

Synonymy list
YearName and author
2007Macrogryphosaurus gondwanicus Calvo et al. p. 472 figs. 1, 3-9, 12-13
2016Macrogryphosaurus gondwanicus Cruzado-Caballero p. 49
2016Macrogryphosaurus gondwanicus Cruzado-Caballero et al. p. 146
2018Macrogryphosaurus gondwanicus Cruzado-Caballero et al. p. 182
2018Macrogryphosaurus gondwanicus Herne et al. p. 15
2018Macrogryphosaurus gondwanicus Madzia et al. p. 969
2019Macrogryphosaurus gondwanicus Cruzado-Caballero et al. p. 211
2019Macrogryphosaurus gondwanicus Herne et al. p. 578
2019Macrogryphosaurus gondwanicus Ibiricu et al. p. 279
2020Macrogryphosaurus gondwanicus Dieudonné et al.

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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
RankNameAuthor
—Diapsida()
—Archosauromorpha(Huene 1946)
—Crocopoda
—ArchosauriformesGauthier 1986
—Eucrocopoda
—Archosauria()
informalAvemetatarsalia
—Ornithodira
—Dinosauromorpha
—Dinosauriformes
—Dinosauria()
—Ornithischia()
—Genasauria
—Cerapoda
—Ornithopoda()
—Clypeodonta
—Iguanodontia()
—Elasmaria
genusMacrogryphosaurus
speciesgondwanicus

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.

†Macrogryphosaurus gondwanicus Calvo et al. 2007
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Diagnosis
ReferenceDiagnosis
J. O. Calvo et al. 2007Triradiate sternum with the anterior border tribranched, two laterally placed and outward directed and one centrally placed smaller and forwardly directed. Sternal ribs flattened, twisted and distally expanded. Last dorsal with well-developed hyposphene. A thin plate-like is located in front of the sterna. Together with these autapomorphies this Elasmarian euiguanodontian differs from Talenkauen santacrucensis by having the pubic peduncle of ilium less developed, a more acute angle between the anterior process of ilium and the pubic peduncle, the acetabular cavity slightly marked. Ten cervical vertebrae, fourteen dorsal vertebrae, epipophyses on the 3rd cervical placed over the distal end of the postzygapophyses and posteriorly projected.
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: gregariouso
Environment: terrestrialo
Locomotion: actively mobileo
Life habit: ground dwellingo
Diet: herbivoresubo
Reproduction: oviparouso
Dispersal: direct/internalo
Dispersal 2: mobileo
Created: 2009-01-03 20:40:05
Modified: 2009-01-03 22:40:05
Source: subo = suborder, o = order
References: Benton 1983, Marsh 1875

Age range: base of the Middle Coniacian to the top of the Late/Upper Coniacian or 89.80000 to 85.70000 Ma

Collections: one only


Time interval Ma Country or state Original ID and collection number
Middle Coniacian - Late/Upper Coniacian89.8 - 85.7Argentina (Neuquén) Iguanodontia indet. (type locality: 55444)