Holomastigotoididae 🔍

Holomastigotoids are a group of extinct species that lived during the Cretaceous period, around 65 million years ago, and were part of the Mesozoic era. These animals had a unique adaptation called a holomastigote, which is a type of fossilized worm or insect with a long, thin body that can grow up to several meters in length and has an internal tube for feeding.