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Majungasaurus crenatissimus

Reptilia - Abelisauridae

Taxonomy
Megalosaurus crenatissimus was named by Depéret (1896) [original types FSL 92.289, 92.290, 92.306, 92.343 set aside as per ICZN Opinion 2269.]. Its type specimen is MNHN.MAJ 1, a mandible, and it is a 3D body fossil. Its type locality is Mevarana site 2, which is in a Maastrichtian fluvial-lacustrine sandstone in the Maevarano Formation of Madagascar.

It was recombined as Dryptosaurus crenatissimus by Depéret and Savornin (1928); it was considered a nomen dubium by Sampson et al. (1998); it was recombined as Majungasaurus crenatissimus by Lavocat (1955), Lapparent (1957), Steel (1970), Russell et al. (1976), Taquet (1977), Obata and Kanie (1977), Taquet (1984), Pant et al. (1988), Bonaparte (1991), Krause and Dodson (1994), Sampson et al. (1996), Sampson et al. (1996), Currie and Padian (1997), Rowe et al. (1997), Novas (1997), Prasad and Sahni (1999), Tykoski and Rowe (2004), Sampson and Witmer (2007), Krause et al. (2007), Smith (2007), Carrano and Sampson (2008), Maganuco et al. (2008), Prasad and Sahni (2009), Bell (2010), Paulina Carabajal and Canale (2010), Smith et al. (2010), Novas et al. (2010), Mateus et al. (2011), Paulina Carabajal (2011), Ruiz et al. (2011), Carrano et al. (2012), Prasad (2012), Paulina Carabajal and Currie (2012), Burch and Carrano (2012), Machado et al. (2013), Fernandes de Azevedo et al. (2013), Bell and Coria (2013), Hendrickx and Mateus (2014), Méndez (2014), Méndez (2014), Xing et al. (2014), Tortosa et al. (2014), Chiarenza and Cau (2016), Ratsinbaholison et al. (2016), Filippi et al. (2016), Ezcurra and Agnolin (2017), Delcourt (2018), Delcourt and Grillo (2018), Buckley et al. (2018), Gutherz et al. (2020), Khosla and Bajpai (2021) and Salem et al. (2022).

Synonyms
Synonymy list
YearName and author
1896Megalosaurus crenatissimus Depéret pp. 188-191 figs. Pl. 4:4-8
1898Megalosaurus crenatissimus Sauvage p. 41
1906Megalosaurus crenatissimus Lemoine p. 206
1907Megalosaurus crenatissimus Thevenin p. 15
1908Megalosaurus crenatissimus Fraas p. 117
1925Megalosaurus crenatissimus Depéret and Savornin p. 1110
1926Megalosaurus crenatissimus Huene p. 89
1926Megalosaurus crenatissimus Piveteau p. 34
1927Megalosaurus crenatissimus Huene p. 267
1928Dryptosaurus crenatissimus Depéret and Savornin pp. 262-263
1931Megalosaurus crenatissimus Stromer p. 9
1939Megalosaurus crenatissimus Kuhn p. 78
1943Megalosaurus crenatissimus Lapparent p. 11
1955Majungasaurus crenatissimus Lavocat p. 259
1957Majungasaurus crenatissimus Lapparent p. 110
1957Megalosaurus madagascariensis Lavocat p. 363
1963Megalosaurus crenatissimus Furon p. 362
1970Majungasaurus crenatissimus Steel p. 33
1976Majungasaurus crenatissimus Russell et al.
1977Majungasaurus crenatissimus Obata and Kanie p. 162
1977Majungasaurus crenatissimus Taquet p. 328
1979Majungatholus atopus Sues and Taquet p. 634 fig. 1
1984Majungasaurus crenatissimus Taquet p. 79
1986Majungatholus atopus Bonaparte p. 91
1988Majungasaurus crenatissimus Pant et al. p. 57
1988Megalosaurus crenatissimus Vianey-Liaud et al. p. 420
1990Majungatholus atopus Maryanska p. 566
1991Majungasaurus crenatissimus Bonaparte p. 2
1994Majungasaurus crenatissimus Krause and Dodson p. 32A
1994Majungatholus atopus Olshevsky and Ford p. 91
1996Majungasaurus crenatissimus Sampson et al.
1997Majungasaurus crenatissimus Currie and Padian p. 369
1997Majungatholus atopus Currie and Padian p. 369
1997Majungasaurus crenatissimus Novas p. 1
1997Majungasaurus crenatissimus Rowe et al. p. 110
1998Majungatholus atopus Sampson et al. p. 1048
1999Majungasaurus crenatissimus Prasad and Sahni p. 382
2002Majungatholus atopus Lamanna et al. p. 58
2003Majungatholus atopus Rauhut p. 33
2003Majungatholus atopus Smith and Krause p. 99A
2004Majungatholus atopus Juárez Valieri and Fiorelli p. 36
2004Majungatholus athopus Martínez et al. p. 578
2004Majungatholus atopus Novas et al. p. 68
2004Majungatholus atopus Tykoski and Rowe p. 49
2004Majungasaurus crenatissimus Tykoski and Rowe p. 50
2005Majungatholus atopus Buffetaut et al. p. 6
2005Megalosaurus crenatissimus Buffetaut et al. p. 6
2006Majungatholus atopus Candeiro et al. p. 935
2006Majungatholus atopus Coria et al. p. 1288
2006Majungatholus atopus Sullivan p. 361
2007Majungasaurus crenatissimus Krause et al. p. 2
2007Majungatholus atopus Malkani
2007Majungasaurus crenatissimus Sampson and Witmer p. 38
2007Majungasaurus crenatissimus Smith p. 105
2008Majungasaurus crenatissimus Carrano and Sampson pp. 195-196
2008Majungasaurus crenatissimus Maganuco et al. pp. 239-240
2009Majungasaurus crenatissimus Prasad and Sahni p. 372
2009Majungatholus atopus Prasad and Sahni p. 372
2010Majungasaurus crenatissimus Bell p. 1263
2010Majungasaurus crenatissimus Novas et al. p. 59
2010Majungasaurus crenatissimus Paulina Carabajal and Canale p. 249
2010Majungasaurus crenatissimus Smith et al. p. 930
2011Majungasaurus crenatissimus Mateus et al. p. 65
2011Majungasaurus crenatissimus Paulina Carabajal p. 793
2011Majungasaurus crenatissimus Ruiz et al. p. 1271
2012Majungasaurus crenatissimus Burch and Carrano p. 2
2012Majungasaurus crenatissimus Carrano et al. p. 234
2012Majungatholus atopus Fanti et al. p. 16
2012Majungasaurus crenatissimus Paulina Carabajal and Currie p. 86
2012Majungasaurus crenatissimus Prasad p. 603
2013Majungasaurus crenatissimus Bell and Coria p. 1
2013Majungasaurus crenatissimus Fernandes de Azevedo et al. p. 135
2013Majungasaurus crenatissimus Machado et al. p. 447
2014Majungasaurus crenatissimus Hendrickx and Mateus p. 19
2014Majungasaurus crenatissimus Méndez p. 99
2014Majungasaurus crenatissimus Tortosa et al. p. 64
2014Majungasaurus crenatissimus Xing et al. p. 1653
2016Majungasaurus crenatissimus Chiarenza and Cau p. 3
2016Majungasaurus crenatissimus Filippi et al. p. 210
2016Majungasaurus crenatissimus Ratsinbaholison et al. p. 282
2017Majungasaurus crenatissimus Ezcurra and Agnolin p. 485
2018Majungasaurus crenatissimus Buckley et al. p. 1227
2018Majungasaurus crenatissimus Delcourt p. 2
2018Majungasaurus crenatissimus Delcourt and Grillo p. 516
2020Majungasaurus crenatissimus Gutherz et al.
2021Mahajungasaurus crenatissimus Khosla p. 1437
2021Majungasaurus crenatissimus Khosla and Bajpai p. 206
2022Majungasaurus crenatissimus Salem et al. p. 3

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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()
—Theropoda()
—Neotheropoda
—AverostraPaul 2002
suborderCeratosauria()
superfamilyAbelisauroidea
familyAbelisauridae
subfamilyCarnotaurinae
tribeMajungasaurini()
genusMajungasaurus
speciescrenatissimus()

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.

†Majungasaurus crenatissimus Depéret 1896
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Invalid names: Majungatholus atopus Sues and Taquet 1979 [synonym]
Diagnosis
ReferenceDiagnosis
R. Lavocat 1955Dentaire assez bas, à moitié inférieure externe fortement convexe. Cloison alvéolaire de la face linguale continue. De taille moyenne.
M. T. Carrano and S. D. Sampson 2008Abelisaurid with: (1) thickened, fused, highly pneumatic nasals bearing large, bilateral foramina, (2) thin nasal lamina separating left and right premaxillary nasal processes, (3) maxilla with 17 teeth, (4) frontals with a median hornlike projection and (5) pronounced median fossa on sagittal crest (modified from Sampson et al. 1998; Krause et al. 2007)
M. T. Carrano et al. 2012Abelisaurid with: (1) thickened, fused, highly pneumatic nasals bearing large, bilateral foramina; (2) thin nasal lamina separating left and right premaxillary nasal processes; (3) maxilla with 17 teeth; (4) frontals with median hornlike projection; and (5) pronounced median fossa on sagittal crest (modified from Sampson et al. 1998; Krause et al. 2007; Sampson & Witmer 2007).