IPB Morphologies, Space Risk & Archeology

a) Suggest local hyperthrophy of the frontal IPB at 353' - Space Risk 1
b) Suggest two IPB (1&2) stacked to each other as Double IPB.
c) IPB Archeology - Sheep
d) Introflession of the IPB structure at 295' - Space Risk 8
e) Local absence of the IPB structure at 325' - Space Risk 5
f) Suggest Squared IPB.