Mammalian phylogenetics at the ordinal level remains one of the outstanding problems in systematics because of the lack of congruence between different data sets.
Children were asked whether they could determine, based on their ordinal position within different classes and families, which of two turtles was faster or taller.
The report continues with a discussion of the various ministries of deacons, including the basis as expressed in the ordinal at ordination in a new trial liturgy in the Diocese of Salisbury.
Data indicating familial and ordinal positions are not available.
It is difficult to establish an accurate ordinal assignment of the taxa described above based on the current knowledge.
The same procedure was followed for the two most abundant taxa identified at the ordinal level.
In his work he clarified a remark by Russell and formulated precisely the paradox of the largest ordinal .
While all of the phyla but one were established during the Cambrian explosion, taxonomic increases during the Ordovician were manifest at lower taxonomic levels although ordinal level diversity doubled.
The answers were transformed to an ordinal scale with values from 0 to 6.
The Mann-Whitney U test is appropriate when the independent variable has two levels and the dependent variable is measured on an ordinal scale.