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

By S. Jouve, M. Iarochene, B. Bouya, M. Amaghzaz. 2006

110 citations recorded by the source corpus.

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. © 2006 The Linnean Society of London, Zoological Journal of the Linnean Society, 2006, 148, 603–656.

Subfields: Nature and Landscape Conservation, Paleontology

View Paper: https://www.semanticscholar.org/paper/4a2a83be990e0907331bd6665045778d5c1ac522

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In Nature and Landscape Conservation

1. A. Turner
2. Marco Brandalise de Andrade
3. J. Sertich
4. S. Brusatte
5. S. Jouve
6. M. Young
7. M. Norell
8. D. Pol

In Paleontology

1. A. Turner
2. J. Sertich
3. Marco Brandalise de Andrade
4. S. Brusatte
5. S. Jouve
6. M. Young
7. M. Norell
8. D. Pol

Citations in the corpus

• A new Sphagesaurus (Mesoeucrocodylia: Notosuchia) from the Upper Cretaceous of Monte Alto City (Bauru Group, Brazil), and a revision of the Sphagesauridae (2008, result): “Despite divergent results, Sphagesaurus is consensually related to Baurusuchidae, Notosuchidae and Comahuesuchidae (Martinelli 2003; Pol 2003; Pol and Norell 2004a, 2004b; Pol and Apesteguia 2005; Jouve et al. 2006; Zaher et al. 2006).”
• The oldest known metriorhynchid super-predator: a new genus and species from the Middle Jurassic of England, with implications for serration and mandibular evolution in predacious clades (2013, background): “Pr 3.11, NHMUK PV 61.4.1.2), fossil gavialoids (Eosuchus and Piscogavialis) and dyrosaurids (see Kraus 1998; Delfino et al. 2005; Jouve et al. 2006).”
• Mahajangasuchus insignis (Crocodyliformes: Mesoeucrocodylia) Cranial Anatomy And New Data On The Origin Of The Eusuchian-Style Palate (2008, result): “This is consistent with the fact that Peirosaurus and Lomasuchus have been recovered consistently as sister taxa in previous analyses (Gasparini et al., 1993; Larsson and Gado, 2000; Pol and Norell, 2004a,b; Jouve et al., 2006; Turner, 2006).”
• The Skull of Teleosaurus cadomensis (Crocodylomorpha; Thalattosuchia), and Phylogenetic Analysis of Thalattosuchia (2009, background): “The characters are those used in Jouve et al. (2006), but many have been modified, and 109 were added (Appendix 1; Supplementary Data, www.vertpaleo.org/publications/JVPContent.cfm).”
• Phylogenetic History of Simosuchus clarki (Crocodyliformes: Notosuchia) from the Late Cretaceous of Madagascar (2010, background): “Recent analyses by Jouve et al. (2006) and Jouve (2009) have found a sister-taxon relationship between Simosuchus and Libycosuchus from the Cenomanian of Egypt.”
• Montealtosuchus arrudacamposi , a new peirosaurid crocodile (Mesoeucrocodylia) from the Late Cretaceous Adamantina Formation of Brazil (2007, background): “Its type material lacked skull, only presented afterwards (Krause et al. 2006). In the following year, Larsson & Gado (2000) described Stolokrosuchus lapparenti from the Elrhaz formation of the Gadoufaoua (Lower Cretaceous, Aptian) in Republic of Niger. Based on phylogenetic analysis, Larsson & Gado”
• The Oldest African Crocodylian: Phylogeny, Paleobiogeography, and Differential Survivorship Of Marine Reptiles Through the Cretaceous-Tertiary Boundary (2008, methodology): “…1997, 1999, 2004a, b, 2006; Brochu and Gingerich, 2000; Buscalioni et al., 2001; Brochu and Rincon, 2004; Hua and Jouve, 2004; Jouve, 2004; Delfino et al., 2005; Jouve et al., 2006a), whereas 7 characters were modified, 34 characters are newly included, and the coding of several taxa was changed.”
• New early Eocene vertebrate assemblage from western India reveals a mixed fauna of European and Gondwana affinities (2016, background): “…1950; Jouve and Schwarz, 2004), than to that of Dyrosaurus maghribensis (OCP DEK-GE 254) from the early Eocene of Ouled Abdoun Basin, Morocco, in having the coracoid foramen closer to the glenoid facet and dorso-ventrally oval (Jouve et al., 2006). lateral, (B) dorsal, and (C) medial views.”
• Morphology of the Late Cretaceous Crocodylomorph Shamosuchus djadochtaensis and a Discussion of Neosuchian Phylogeny as Related to the Origin of Eusuchia (2009, methodology): “Storrs and Efimov (2000) noted that some of the 10 species described for Shamosuchus might be synonymous, although some of them differ markedly with respect to the remains of Shamosuchus djadochtaensis described here.”
• A new Berriasian species of Goniopholis (Mesoeucrocodylia, Neosuchia) from England, and a review of the genus (2011, methodology): “Recent works by Jouve et al. (2006), Lauprasert et al. (2007), Turner & Buckley (2008), Jouve (2009), and Pol et al. (2009) renew the available information and allow wider access to key data.”