Razanandrongobe

This new predator was described by Maganuco S., Dal Sasso C., and Pasini G., 2006 - the published paper describes the holotype  material comes from the Isalo IIIb subunit of the Mahajunga basin.  Here is an abstract from that paper:

Abstract ­    Here we report on the finding of new vertebrate remains from the
Middle Jurassic (Bathonian) of the Mahajanga basin, NW Madagascar, that represent one of the largest predatory archosaurs from Gondwana. The remains consist of a fragmentary right maxilla bearing three teeth and seven isolated teeth that clearly belong to a single taxon. Although the scarcity of the remains rendersestablishment of affinities difficult, the presence of a unique combination of features including a well developed medial shelf of the maxilla, rostral and lateral teeth respectively U-shaped and sub-oval in cross-section, and very large tooth denticles (1 per mm), allows us to erect a new taxon, Razanandrongobe sakalavae. Additionally, the structure of the teeth, the peculiar wear of their enamel, and the morphology of the maxilla strongly suggest that Razanandrongobe sakalavae often crushed the bones of its prey.  The jaw fragment and teeth are similar to the representative bones of theropod dinosaurs and some types of crocodylomorphs, and the authors refrained from assigning the genus to either group. They interpreted the stout teeth as having been used for crushing bones. The fragment suggests a considerable size for the species, comparable to that of Tyrannosaurus.

The paper goes on to say that' Razanandrongobe' is either a crocodylomorph or a theropod Although' Razanandrongobe sakalavae' differs in some aspects from any currently known member of the Crocodylomorpha and Theropoda, it belongs certainly to one of those taxons.  The preserved maxillary fragment is 192 mm long, 124 mm high, and 96 mm wide, and the describers suggest that Razanandrongobe may have been of a similar size to either Sarcosuchus Imperator (if a crocodilian) or Daspletosaurus(if a theropod). Either way a huge super predator that would have terrorised Gondwana.  'Razanandrongobe'  dentition show striking similarities to a Tyrannosaurus  (but not enough to indicate a close phylogenetic relationship, just a similar mode of predatory behavior), these teeth clearly are the teeth of a bone crusher similar to T REX.  'Razanandrongobe' most likely fed on sauropods such as Lapparentosaurus and Archaeodontosaurus say the authors.   Beyond rare and  the only one available for sale worldwide ,only a jaw and some isolated teeth ever found,this is a lateral tooth  lateral teeth from this beast is described as sub-oval in cross-section; smallest lateral teeth, globe-shaped; denticles present on both carinae in all the teeth, and very large (0.8- 1.4 per mm) (unambiguous autapomorphy of the taxon)." 
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(Click Photo to Enlarge)

Name:  Razanandrongobe sakalavae (giant archosaur)
Geologic Age: Mid Jurassic
Stratigraphic detail:   Bathonian-age Isalo Illb rock unit of Mahajanga
Location:  Madagscar
Comments:    This is a BIG TOOTH!!  It measures 2 5/16" long and has a circumference of 3.25"!  The enamel is good with some whitening from roots or exposure to the sun.. there is one hydration crack present as well.. but there are BIG SERRATIONS present on this tooth and a cool wear pattern to the tip. 

Razanandrongobe Tooth 3 Price $1350.00                                              

(Click Photo to Enlarge)

Name:  Razanandrongobe sakalavae (giant archosaur)
Geologic Age: Mid Jurassic
Stratigraphic detail:   Bathonian-age Isalo Illb rock unit of Mahajanga
Location:  Madagscar
Comments:    This is a RARE DINOSAUR CLAW from Madagascar!   This claw is very solid and heavy.  The blood groove is distinct on both sides with good rear articulation surfaces present.  Wonderful shape and immediately recognizable as a dinosaur claw!

Razanandrongobe Claw 1 Price $2500.00                                              

(Click Photo to Enlarge)

Name:  Razanandrongobe sakalavae (giant archosaur)
Geologic Age: Mid Jurassic
Stratigraphic detail:   Bathonian-age Isalo Illb rock unit of Mahajanga
Location:  Madagscar
Comments:    This tooth is from a juvenile dinosaur.. while not in the BEST of shape, it is still an example of a RARE DINOSAUR..

Razanandrongobe Tooth 1 Price $85.00                                              

(Click Photo to Enlarge)

Name:  Razanandrongobe sakalavae (giant archosaur)
Geologic Age: Mid Jurassic
Stratigraphic detail:   Bathonian-age Isalo Illb rock unit of Mahajanga
Location:  Madagscar
Comments:    This tooth is another from a juvenile dinosaur.. The tip of the tooth appears to have been broken but it is well worn, so appears to have broken and continued to be used afterwards.. It is a nice example of a RARE DINOSAUR..

Razanandrongobe Tooth 2 Price $235.00