👉 Pelagophyceae are a group of marine gastropod mollusks, which belong to the class Gastropoda and have a wide range of morphological features in terms of their external appearance. They are known for their large size, with some species reaching up to 1 meter long and weighing several hundred pounds. Pelagophyceae include several families, including the Chondrichthyes (whales), which are characterized by their streamlined bodies, while the Proter
