A full statistical anaylsis on the detailed expansion of this region has not been conducted. There are a dozen informative positions commenting on the order of these branches with only one discrepency, however most of the positions are known to be affected by an ambiguity of some sort. So one should anticipate that the apparently solid branch order of mmL1FTE, AC4407a, AC2315b, and AC3995a will fall apart when more sequences are added to the area. These four sequences show no affinity for each other, and are probably not part of an offshoot lineage. Optimistically, AC3995a may be significantly younger than mmL1FTE, with the other 2 sequences positioned indeterminantly in between. It is unclear if these sequences emerged within a sufficiently short time span to be considered a radiative burst.