Tyrannosaur - Nanotyrannus tooth from the Hell Creek Formation of South Dakota.

Tyrannosaur - Nanotyrannus cf. lancensis

$350.00

Vendor: Fossil Soup

SKU Number: SQ5472616

A controversial genus of tyrannosaurid dinosaur that is still in question and may in fact be a Juvenile Tyrannosaurus rex. Nanotyrannus was a carnivorous theropod that lived at the very end of the Mesozoic era around 66-67 million years ago.

This tooth comes from the Hell Creek Formation, Harding County, South Dakota. It is a nice example of a lateral maxillary or dentary (upper or lower jaw) tooth that exhibits some natural wear due to erosion.

The surface of the tooth is worn and the tip of the crown seems to have been worn flat. There does not appear to have been any repair or restoration to the tooth. It should be noted that it is very difficult to determine tooth position based on the inspection of isolated examples. Therefore we use certain morphological features to suggest general location. A morphological diagram is provided further down the page.

Full dimensions are listed below.

Vendor: Fossil Soup

SKU Number: SQ5472616

Full dimensions are listed below.

Specimen Details
Genus Name:Nanotyrannus cf. lancensisClade / Family:Theropoda, TyrannosauridaeAge:Upper CretaceousLocality:Harding County, South DakotaFormation:Hell Creek Formation

Matrix Dimensions
Dimensions:In CentimetersLength:N/AWidth:N/AHeight:N/AWeight:N/A grams

Specimen Dimensions
Dimensions:In CentimetersLength:2.18 cmWidth:1.07 cmDepth:0.53 cmWeight:N/A grams

Shipping Dimensions
Dimensions:In InchesLength:8.50 inchesWidth:5.50 inchesHeight:1.75 inchesWeight:1.0 lbs  (Small Flat Rate Box)

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Additional Information

Tyrannosaurus rex was a large theropod dinosaur that lived throughout what is now western North America, on what was then an island continent known as Laramidia. Teeth attributed to Nanotyrannus are still heavily debated, and may in fact be juvenile T. rex teeth.

T. rex was one of the largest land carnivores of all time. One of the largest and the most complete specimens, nicknamed Sue, is located at the Field Museum of Natural History. Sue measured 12.3–12.4 m (40.4–40.7 ft) long, was 3.66–3.96 meters (12–13 ft) tall at the hips, and according to the most recent studies, using a variety of techniques, maximum body masses have been estimated approximately 8.4 metric tons (9.3 short tons).