When these 125 points are plotted in a two dimensional x-y space, the intercept and slope of a simple linear regression of y on x statistically distinguish between the four possible arrangements of the two assemblages along that axis of the morphospace.
Although new discoveries might slightly modify these percentages, it is improbable that the differences between the three assemblages could be the result of sampling biases, because no single dinosaur footprint has ever been found below the CPE in the Southern Alps and very few crurotarsan footprints have been found after the CPE, despite intensive sampling in the last 40 years.
The two assemblages did not come within hailing distance.
This organism was placed between the clades representing the G. muris and all the six assemblages of G. duodenalis.
Patterns of morphological diversification among the shape elements appear to covary similarly in the three assemblages.
Comparison of the bovid taxa from these two assemblages shows some taxonomic differences between these two assemblages, dated to between 5.77 5.54 Ma and just older than 5.2 Ma, respectively [6], [16].
First, we calculated the 95% confidence interval (CI) for the angle between two assemblages by re-sampling 100 specimens of each assemblage with replacement and calculating the angle between them 700 times.
Formally, this tests whether the angles between two assemblages' Mmax axes, 2-D planes, and 3- and 4-D spaces of morphological divergence are more different than the angles between two random samples of either single assemblage.
Comparison of chromosome size between the two clinical assemblage AII strains and the reference strain WB (AI), indicate difference in size of the small chromosomes, 1 and 2. Previous studies have suggested these differences to be due to recombination of regions of rDNA in the telomeres [ 30].
We then tested the null hypothesis that the angle between two assemblages could result from the random subdivision of either assemblage, i.e. that the assemblages are 'the same'.
