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11 results for “Hamadasuchus”
Figure 5 in Cranial osteology and phylogenetic relationships of Hamadasuchus rebouli (Crocodyliformes: Mesoeucrocodylia) from the Cretaceous of Morocco
Figure 5. Details of the cranium of Hamadasuchus rebouli (ROM 52620). A, right posterodorsolateral view into orbit showing prefrontal pillar. B, posteroventral view of occiput. Scale bar = 10 cm.
Figure 2 in Cranial osteology and phylogenetic relationships of Hamadasuchus rebouli (Crocodyliformes: Mesoeucrocodylia) from the Cretaceous of Morocco
Figure 2. Cranium of Hamadasuchus rebouli (ROM 52620). A, right lateral and C, occipital view. B and D, outline drawings corresponding to each view. Scale bar = 10 cm. Anatomical abbreviations are defined in Appendix 1.
Figure 1 in Cranial osteology and phylogenetic relationships of Hamadasuchus rebouli (Crocodyliformes: Mesoeucrocodylia) from the Cretaceous of Morocco
Figure 1. Cranium of Hamadasuchus rebouli (ROM 52620). A, dorsal and C, ventral view. B and D, outline drawings corresponding to each view. Scale bar = 10 cm. Anatomical abbreviations are defined in Appendix 1.
Figure 3 in Cranial osteology and phylogenetic relationships of Hamadasuchus rebouli (Crocodyliformes: Mesoeucrocodylia) from the Cretaceous of Morocco
Figure 3. Details of the cranium of Hamadasuchus rebouli (ROM 52620). Upper details are to same scale; scale bar = 10 cm. Details of the dentition are to same scale; scale bar = 2 cm.
Figure 7 in Cranial osteology and phylogenetic relationships of Hamadasuchus rebouli (Crocodyliformes: Mesoeucrocodylia) from the Cretaceous of Morocco
Figure 7. Partial juvenile crania of Hamadasuchus rebouli. A and C, dorsal and occipital views of ROM 52059. B and D, dorsal and occipital views of ROM 54511. E, partial cranium of Moroccan 'Libycosuchus' (modified from Buffetaut, 1976: fig. 3). Scale bar = 10 cm.
Figure 6 in Cranial osteology and phylogenetic relationships of Hamadasuchus rebouli (Crocodyliformes: Mesoeucrocodylia) from the Cretaceous of Morocco
Figure 6. Partial left dentary of Hamadasuchus rebouli (ROM 49282) in A, lateral, B, medial, C, ventral, and D, dorsal views. Scale bar = 10 cm. Anatomical abbreviations are defined in Appendix 1.
Figure 4 in Cranial osteology and phylogenetic relationships of Hamadasuchus rebouli (Crocodyliformes: Mesoeucrocodylia) from the Cretaceous of Morocco
Figure 4. Details of the cranium of Hamadasuchus rebouli (ROM 52620). Scale bar = 10 cm.
Figure 9 in Cranial osteology and phylogenetic relationships of Hamadasuchus rebouli (Crocodyliformes: Mesoeucrocodylia) from the Cretaceous of Morocco
Figure 9. Taxonomic arrangement of Mesosuchia based on Fig. 8C.
Data from: A peirosaurid mandible from the Albian (Lower Cretaceous) of Algeria and the taxonomic content of Hamadasuchus (Crocodylomorpha, Peirosauridae)
<p><span>Peirosaurids form an extinct clade of terrestrial crocodylomorphs known from the Cretaceous of Africa and South America. Here, we describe a new mandibular ramus attributable to <em>Hamadasuchus</em> cf. <em>rebouli</em> from the Albian/Cenomanian of La Gara Samani (Algeria). We propose an emended diagnosis for this taxon, originally described from a left dentary fragment from the Kem Kem beds of Morocco and discuss the assignation of the specimens currently referred to it. Using ontogenetic series of extant crocodylians, we show that several mandibular characters commonly used to differentiate between close taxa instead record intraspecific or ontogenetic variability. On the other hand, reliable mandibular characters allow us to propose that the current taxonomic content of <em>Hamadasuchus</em> <em>rebouli</em> should be reduced to three specimens, pending future description of relatable cranial remains that will confirm or not this hypothesis. Finally, we demonstrate the importance of mandibular characters in phylogenies, by recovering the new specimen from La Gara Samani as closely related to North African peirosaurids on the basis of a data matrix designed solely on mandibular characters.</span></p>
Data from: A peirosaurid mandible from the Albian (Lower Cretaceous) of Algeria and the taxonomic content of Hamadasuchus (Crocodylomorpha, Peirosauridae)
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Figure 8 in Cranial osteology and phylogenetic relationships of Hamadasuchus rebouli (Crocodyliformes: Mesoeucrocodylia) from the Cretaceous of Morocco
Figure 8. Results of phylogenetic analysis. A, strict consensus of the 48 most parsimonious trees with all taxa included. Tree length is 548 steps, consistency index is 0.3923, retention index is 0.6623, and rescaled consistency index is 0.2598. Bootstrap support values are given above each branch for values greater than 50%. Bremer decay values are given below each branch. B, Adams consensus of the same set of trees with Adams decay values below each branch. C, strict consensus of the 138 most parsimonious trees of the reduced taxon set. Tree length is 540 steps, consistency index is 0.3981, retention index is 0.6546, and rescaled consistency index is 0.2606. Bootstrap support values greater than 50% are presented above each branch and Bremer decay values below each branch. D, Adams consensus of this set of trees with Adams decay values below each branch.
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