The second ring of architectural nodes and termini exist at a distance of 4.5-7.5 (and possibly up to 9.5) km from the epicenter.
Closest to this diet were individuals interred in large raised residential plazas adjacent to causeway termini.
In some instances, we had to remove a layer of depositional soil to trace several causeways to their termini.
As mentioned earlier, no ritual paraphernalia is associated archaeologically with any of the specialfunction causeway termini.
Several splicing variants in each subtype have been identified in both brain stem and spinal cord based on molecular diversities in the two termini.
Like the first-ring termini, the second-ring termini often have elite groups joined to their central architectural plazas by spur causeways.
All of the known termini from this initial ring have plazas that are as large as the major plazas in the epicenter.
As in the epicenter, however, spur causeways connect elite residential groups and their associated temple-pyramids with these outlying termini.
