TORVOSAURUS GURNEYI - DATE FOR CAPTURE: 2018-03-20 - SOLD. RUSSIAN FEDERATION, 2018...

GENERAL INFORMATION:

The teeth of Torvosaurus are a big rarity, which makes of them the "Holy Grail" of the fossils of Theropods of the Upper Jurassic of Portugal.
Getting lucky to catch a tooth in perfect condition, is virtually, even rarer to get...
This, unfortunately, is not at this level of perfection desired. Still, is nonetheless a very interesting tooth, to be part of the best collections.
 
I classify this tooth as being complete. Because it is not with the broken point, but because it has a accentuated natural wear. Probably an old discarded tooth, resulting from replacement by another new tooth.
 
The preparation:
Generally I like to keep mine, fossils in the matrix... In this tooth, I have finally decided to remove it completely from the matrix.
This kind of matrix, when it begins to dry and without humidity internally, opens wide and deep cracks. Inevitably, this can bring stability problems to the fossil. To avoid this situation and also because the most interesting part of the tooth is inserted inside the matrix, I chose to completely remove the tooth.
 
J.P. Oliveira
Fossil Classification And Data Sheet:

J.P. Oliveira - Fossils Collection
Formation / Deposit: Lourinhã formation, Portugal
Layear and Age: Upper Jurassic (Kimmeridgian)
Taxonomy: Megalosauridae
Elements: Torvosaurus gurneyi., tooth 
Note: 100% natural. No repair 0%
Inventory  number: REF: TH.10 Date: 2018-03-20
Site / Zone: Lourinhã Rarity: Very, rare
Size: Tooth - 29.87mm x 14.97mm x 7.83mm
Collectors: J.P. Oliveira
Price: Contact the seller / make an offer... Sold. Russian Federation, 2018...
Shipping costs: Contact the seller
dragoshells.jp@gmail.com

 

 
T. sp. in Japan

When first described in 1979 by Galton and Jensen,[2] Torvosaurus was classified as a megalosaurid, which is the current consensus.[10] It was later assigned to Carnosauria by Ralph Molnar et al. in 1990,[16] and to a basal position in Spinosauroidea by Oliver Walter Mischa Rauhut in 2003[17] and to a very basal position in the Tetanurae by Thomas Holtz in 1994;[18] all these assignments are not supported by present phylogenetic analysis.[10] In 1985, Jensen assigned Torvosaurus a family of its own, the Torvosauridae.[8] Despite support for this concept by Paul Sereno[19] and Mateus,[14] it seems redundant as Torvosaurus is closely related to, and perhaps the sister species of, the earlier Megalosaurus within a Megalosaurinae.[10] However, Torvosauridae may be used as an alternative name for Megalosauridae if Megalosaurus is considered an indeterminable nomen dubium.[20] Though a close relative of MegalosaurusTorvosaurus is seemingly more advanced or apomorphic. Torvosaurus's larger clade, the Megalosauridae, is most commonly held as a basal branch of the Tetanurae, and considered less derived than carnosaurs or coelurosaurs, and likely related to the spinosaurids.[10]

The following is a cladogram based on the phylogenetic analysis conducted by Carrano, Benson & Sampson (2012), showing the relationships of Torvosaurus:[10]

 

Megalosauridae
Eustreptospondylinae
 
 
Megalosaurinae
 

Duriavenator Duriavenator NT.jpg

 
 
 

Megalosaurus

 
 

Torvosaurus Torvosaurus tanneri Reconstruction (Flipped).png

 
 
 
Afrovenatorinae
 

Afrovenator

 
 
 

Dubreuillosaurus Dubreuillosaurus NT Flipped.png

 
 

Magnosaurus Magnosaurus (Flipped).jpg

 
 
 

Source: en.wikipedia.org/wiki/Torvosaurus