Elosuchus, a new genus of crocodile from the Cretaceous of the North of Africa

Broin, France de Lapparent de

doi:10.1016/s1631-0683(02)00049-0

Cited by 67 publications

(48 citation statements)

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“…In dyrosaurids, the palatine participates ventrally only in the anteromedial margin of the choanae, as in Psammosuchus (de Broin, 1965) and Elosuchus (de Broin, 1965; Lapparent de Broin, 2002), even if this participation is greater in the latter taxa. In eusuchians, the choanae are completely surrounded by the pterygoids, and the palatine forms the whole anterior margin of the choanae in the most primitive mesoeucrocodylians.…”

Section: Systematic Palaeontologysupporting

confidence: 61%

A new species of Dyrosaurus (Crocodylomorpha, Dyrosauridae) from the early Eocene of Morocco: phylogenetic implications

Jouve¹,

Iarochène²,

Bouya³

et al. 2006

Zoological Journal of the Linnean Society

105

160

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A new dyrosaurid is described from the Ypresian of the phosphatic deposits of the Oulad Abdoun Basin of Morocco. It is based on numerous cranial and postcranial remains, allowing an almost complete reconstruction. This new Dyrosaurus species, Dyrosaurus maghribensis sp. nov. , is currently only known from Morocco. It differs from D. phosphaticus , present in contemporaneous levels of Algeria and Tunisia, by several autapomorpies, including a smooth dorsal margin of the parietal and widely opened choanae. A phylogenetic analysis, using 47 taxa and 234 morphological characters, shows the dyrosaurids as the sister taxon of pholidosaurids, which include Elosuchus , Sarcosuchus , Terminonaris and Pholidosaurus , and the thalattosuchians. Goniopholididae is a non-monophyletic group; however, if dyrosaurids are not included in the analysis, the result differs and the goniopholidids form a distinct clade. If Thalattosuchia is excluded, both Goniopholididae and Pholidosauridae become paraphyletic assemblages. Thus, phylogenetic problems remain with respect to longirostrine clade, and more attention should be paid to resolving their evolutionary relationships amongst the crocodyliforms.

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Section: Systematic Palaeontologysupporting

confidence: 61%

A new species of Dyrosaurus (Crocodylomorpha, Dyrosauridae) from the early Eocene of Morocco: phylogenetic implications

Jouve¹,

Iarochène²,

Bouya³

et al. 2006

Zoological Journal of the Linnean Society

105

160

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“…Based on the preserved region, the dentary appears to be from a mesorostrine or longirostrine taxon (based on the long, narrow and dorsoventrally shallow dentary). It is similar to other tethysuchians such as ‘ Elosuchus ’ felixi (de Lapparent de Broin, ) and Dyrosauridae (e.g. Hill et al ., ; Hastings et al ., ).…”

Section: Descriptionsupporting

confidence: 68%

“…One of the major issues hampering resolution in these analyses is the paucity of ‘middle’ Cretaceous (Barremian–Turonian) marine tethysuchians, thus affecting our understanding of character polarity. In those phylogenetic analyses in which ‘pholidosaurids’ are paraphyletic, all potential dyrosaurid sister taxa ( Elosuchus , Oceanosuchus , and Terminonaris ) are from this time span (see Mook, , ; Wu et al ., ; de Lapparent de Broin, ; Hua et al ., ). Furthermore, the earliest potential dyrosaurids are Cenomanian in age (Buffetaut & Lauverjat, ; Buffetaut, Bussert & Brinkmann, ).…”

Section: Introductionmentioning

confidence: 99%

Marine tethysuchian crocodyliform from the ?Aptian-Albian (Lower Cretaceous) of the Isle of Wight, UK

Young

Steel

Foffa

et al. 2014

Biol J Linn Soc Lond

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A marine tethysuchian crocodyliform from the Isle of Wight, most likely from the Upper Greensand Formation (upper Albian, Lower Cretaceous), is described. However, we cannot preclude it being from the Ferruginous Sands Formation (upper Aptian), or more remotely, the Sandrock Formation (upper Aptian-upper Albian). The specimen consists of the anterior region of the right dentary, from the tip of the dentary to the incomplete fourth alveolus. This specimen increases the known geological range of marine tethysuchians back into the late Lower Cretaceous. Although we refer it to Tethysuchia incertae sedis, there are seven anterior dentary characteristics that suggest a possible relationship with the Maastrichtian-Eocene clade Dyrosauridae. We also review 'middle' Cretaceous marine tethysuchians, including putative Cenomanian dyrosaurids. We conclude that there is insufficient evidence to be certain that any known Cenomanian specimen can be safely referred to Dyrosauridae, as there are some cranial similarities between basal dyrosaurids and Cenomanian-Turonian marine 'pholidosaurids'. Future study of middle Cretaceous tethysuchians could help unlock the origins of Dyrosauridae and improve our understanding of tethysuchian macroevolutionary trends.

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“…Composition: Elosuchus cherifiensis (Lavocat, 1955), Elosuchus felixi Lapparent de Broin, 2002, Meridiosaurus vallisparadisi Mones, 1980, Oceanosuchus boecensis Hua et al ., 2007, Pholidosaurus purbeckensis (Mansel‐Pleydell, 1888) Pholidosaurus schaumburgensis (Meyer, 1841), Sarcosuchus hartii (Marsh, 1869), Sarcosuchus imperator de Broin & Taquet, 1966, Terminonaris browni (Osborn, 1904), Terminonaris robusta (Mook, 1934). Putative pholidosaurids are Anglosuchus geoffroyi (Owen, 1884) and A. laticeps (Owen, 1884), Crocodilaemus robustus Jourdan in Gervais (1871), and Pholidosaurus meyeri (Dunker, 1843).…”

mentioning

confidence: 99%

Redescription and phylogenetic relationships ofMeridiosaurus vallisparadisi, a pholidosaurid from the Late Jurassic of Uruguay

Fortier

Perea

Schultz

2011

Zoological Journal of the Linnean Society

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Meridiosaurus vallisparadisi Mones, 1980, a freshwater pholidosaurid from the Late Jurassic of Uruguay, is redescribed herein. It can be diagnosed by the possession of the following combination of features: (1) lateral constriction of the rostrum at premaxilla–maxilla contact, strong lateral expansion of the premaxilla with the fifth tooth placed in the widest portion; (2) sinusoidal premaxilla–maxilla suture in palatal view, posteromedially directed on its lateral half, and anteromedially directed along its medial region; (3) evaginated maxillary alveolar edges forming a discrete collar at each alveolus, lateroventrally oriented; (4) greater number of maxillary teeth (at least 27) with respect to Elosuchus (less than 20 maxillary teeth); (5) nasals do not meet premaxilla dorsally; (6) strong sinusoidal lateral contour of snout in dorsal view, with respect to the similar condition of Elosuchus, forming two waves (‘festooned’); and (7) third, fourth, and fifth alveoli are equally enlarged. A phylogenetic analysis was performed, including six pholidosaurids: Elosuchus, Meridiosaurus, Oceanosuchus, Pholidosaurus, Sarcosuchus, and Terminonaris. The analysis confirmed the monophyly of Pholidosauridae, and a new definition is proposed: a stem‐based group name including Pholidosaurus schaumburgensis Meyer, 1841 and all taxa closer to it than to Dyrosaurus phosphaticus (Thomas, 1893) or Pelagosaurus typus Bronn, 1841. Pholidosauridae originated in Europe during the Middle Jurassic, dispersed to Africa, and North and South America, in several dispersal events, and completely disappeared in the Late Cretaceous. © 2011 The Linnean Society of London, Zoological Journal of the Linnean Society, 2011, 163, S257–S272.

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Elosuchus, a new genus of crocodile from the Cretaceous of the North of Africa

Cited by 67 publications

References 0 publications

A new species of Dyrosaurus (Crocodylomorpha, Dyrosauridae) from the early Eocene of Morocco: phylogenetic implications

A new species of Dyrosaurus (Crocodylomorpha, Dyrosauridae) from the early Eocene of Morocco: phylogenetic implications

Marine tethysuchian crocodyliform from the ?Aptian-Albian (Lower Cretaceous) of the Isle of Wight, UK

Redescription and phylogenetic relationships ofMeridiosaurus vallisparadisi, a pholidosaurid from the Late Jurassic of Uruguay

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