@jopabinia, the person behind the hypothesis of carcinisation in the past few years, on the constraints of evolution and Integrating fossils and molecular data.
Using methods such as micro-CT can help us unravel unknown patterns in fossils, such as 3D structure.
Fossils of developmental stages of pancrustacea, integrated with Evo-Devo molecular data, can help us understand the evolution of crown group arthropoda.
Fossils record of crabs is incomplete, however we can still see diversity arise