Table 5 in Taxonomic Status of Nanotyrannus lancensis (Dinosauria: Tyrannosauroidea) - A Distinct Taxon of Small-Bodied Tyrannosaur

Table 5. LAG data, body mass, and growth rate estimates rounded to the nearest kg for Sue (FMNH PR 2081), Petey (BMRP 2006.4.4), and Jane (BMRP 2002.4.4) based on femoral circumferences, including corrected values for Jane based on a split multi-LAG interpretation [49]. Campione et al. [50] estimate Sue’s mass at death (i.e., after LAG #23) as 7377 kg after applying a correction for non-circular femoral cross-section. Hutchinson et al. [104] estimate Jane’s mass at death (i.e., after LAG #9) as 954 kg based on 3D modeling. See Supplemental File for equations used in calculations. Note that LAG #1 and the periosteum do not record a full year of growth. Periosteum is assigned a LAG pseudo-number of +0.5 after the final LAG, indicating that death could have occurred at any point after the last yearly marker was deposited while assigning an age at the midpoint of that final year. Jane required estimation of LAG/periosteum circumferences from LAG spacing and femoral width due to the incomplete cross-section of the femur midshaft. (1) LAG (or periosteum) distance from endosteum is measured at the time of death, (2) femoral width at midshaft (including medullary cavity) is measured at time of death and back estimated using LAG spacing, (3) femoral circumference derived from femoral width at a given year is approximated as a circular cross-section. Data sources: Campione et al. [50]; Cullen et al. [49]; Woodward et al. [46].
SpecimenNicknameTaxonLAG No.Circumference (mm)Mass (kg) (Campione et al., 2014), Equation (7))Mass Increase from Previous LAG (kg)FMNH PR 2081SueTyrannosaurus1338.71924NAFMNH PR 2081SueTyrannosaurus23872777853FMNH PR 2081SueTyrannosaurus3415.73382605FMNH PR 2081SueTyrannosaurus4440.33962580FMNH PR 2081SueTyrannosaurus5459.74461500FMNH PR 2081SueTyrannosaurus6485.55185724FMNH PR 2081SueTyrannosaurus7511.15973788FMNH PR 2081SueTyrannosaurus8527.16503529FMNH PR 2081SueTyrannosaurus9542.87050547FMNH PR 2081SueTyrannosaurus10551.67369319FMNH PR 2081SueTyrannosaurus11559.37656287FMNH PR 2081SueTyrannosaurus12564.97869213FMNH PR 2081SueTyrannosaurus13565.7790031FMNH PR 2081SueTyrannosaurus14566.5793131FMNH PR 2081SueTyrannosaurus15567.4796535FMNH PR 2081SueTyrannosaurus16568.2799631FMNH PR 2081SueTyrannosaurus17569802731FMNH PR 2081SueTyrannosaurus18569.8805931FMNH PR 2081SueTyrannosaurus19570.7809435FMNH PR 2081SueTyrannosaurus20571.5812531FMNH PR 2081SueTyrannosaurus21572.3815631FMNH PR 2081SueTyrannosaurus22573.1818831FMNH PR 2081SueTyrannosaurus23574822335FMNH PR 2081SueTyrannosaurusPeriosteum5798422199BMRP 2006.4.4PeteyNanotyrannus1148.4198NABMRP 2006.4.4PeteyNanotyrannus2165.926971BMRP 2006.4.4PeteyNanotyrannus3194.7419149BMRP 2006.4.4PeteyNanotyrannus4214.5547128BMRP 2006.4.4PeteyNanotyrannus5223.661366BMRP 2006.4.4PeteyNanotyrannus6229.465845BMRP 2006.4.4PeteyNanotyrannus7234.870144BMRP 2006.4.4PeteyNanotyrannusPeriosteum244.778684BMRP 2002.4.4JaneNanotyrannus1195.9426NABMRP 2002.4.4JaneNanotyrannus2218.4575149BMRP 2002.4.4JaneNanotyrannus3231.8677102BMRP 2002.4.4JaneNanotyrannus4247.3809132BMRP 2002.4.4JaneNanotyrannus5248.682011BMRP 2002.4.4JaneNanotyrannus6255.388463BMRP 2002.4.4JaneNanotyrannus7257.790623BMRP 2002.4.4JaneNanotyrannus8265.798679BMRP 2002.4.4JaneNanotyrannus9266.69959BMRP 2002.4.4JaneNanotyrannusPeriosteum273.2106469BMRP 2002.4.4Jane (corrected)Nanotyrannus1195.9426NABMRP 2002.4.4Jane (corrected)Nanotyrannus2218.4575149BMRP 2002.4.4Jane (corrected)Nanotyrannus3231.8677102BMRP 2002.4.4Jane (corrected)Nanotyrannus4248.6820144BMRP 2002.4.4Jane (corrected)Nanotyrannus5257.790686BMRP 2002.4.4Jane (corrected)Nanotyrannus6266.699588BMRP 2002.4.4Jane (corrected)NanotyrannusPeriosteum273.2106469