This book redefines evolution by emphasizing the role of environmental stress in driving epigenetic and morphologic adaptations across unicellular to vertebrate life forms through niche construction. It challenges conventional Darwinian theory with evidence of "reverse evolution" in Ammonites and mammals, proposing that evolution is a stress-induced, reciprocal process guided by cell-cell interactions and conserved physiological principles, rather than solely genetic or reproductive mechanisms.

This article discusses the definition of the Triassic-Jurassic boundary (TJB), proposing the lowest occurrence (LO) of Psiloceras tilmanni in the New York Canyon area of Nevada, USA, as the boundary marker event due to its optimal global correlation potential. The authors evaluate other potential marker events (such as bivalves, conodonts, radiolarians, mass extinction, and carbon isotope excursions) but conclude that they have less correlation potential and cannot replace an ammonite-based definition.

This article primarily discusses recent refinements to the Unitary Association Method (UAM), proposing optimizations through an analysis of Devonian ammonoid biochronology in Morocco. It also reviews the application of this method in paleontological studies, such as quantitative biochronology of Neogene Antarctic diatoms and the Early Toarcian anoxia event, with a list of relevant references provided.