T. rex endangered species: Tables

TABLE 1. List of 61 Tyrannosaurus rex specimens that were collected by, and are curated in, a public trust. Superscript T (^T) indicates type specimens, superscript J (^J) indicates juveniles.

State/Province abbreviations: AB, Alberta, Canada; CO, Colorado; MT, Montana; ND, North Dakota; NM, New Mexico; SD, South Dakota; SK, Saskatchewan, Canada; TX, Texas; UT, Utah; WY, Wyoming. 

TABLE 2. List of 71 commercially and privately held Tyrannosaurus rex specimens; the available information on “King Kong” is contradictory and so it appears twice (#10, #43). The three specimens with the same number, “TE-36,” are indeed three separate specimens according to the now-defunct website. An asterisk (*) marks specimens that are outside of the United States; a superscript J (^J) indicates a juvenile specimen.

See Table 1 for state/province abbreviations.

TABLE 3. The nine commercially collected Tyrannosaurus rex specimens that were later accessioned into a public trust. Superscript J (^J) indicates juvenile specimens.

See Table 1 for state/province abbreviations.

TABLE 4. The prices of Tyrannosaurus rex specimens, with the original price and the current price adjusted for inflation. Asterisks indicate specimens that sold; including specimens that did not sell gives a more complete estimation of what the market expects for a T. rex fossil. The “Dueling Dinosaurs” were purchased for $6M, and the price of the T. rex is estimated here as half of that price. All prices are in USD; the US Inflation Calculator (https://www.usinflationcalculator.com/) was used to adjust for the difference in inflation between now and the year the prices were published. Data for “Barnum” is from Wikipedia (https://en.wikipedia.org/wiki/List_of_dinosaur_specimens_sold_at_auction). The price of Tinker was the amount on offer in 2014; the actual sale price is unknown.

TABLE 5. Summary of 19 commercially-obtained Tyrannosaurus rex specimens that, as of this writing, are outside of the United States. For sources see Table 2.

TABLE 6. Summary of information content in the skeleton of Tyrannosaurus rex , based on the data set of Carr (2020). The ratio of the number of states to the number of characters for each element was taken to quantify mean information value content across all parts.

Table 7. Summary of commercially- or privately owned Tyrannosaurus rex specimens that have appeared in peer-reviewed scientific and technical articles. Asterisk (*) indicates articles in which BHI 4182 is given incorrectly as BHI 4812. Table 7.