Haptophyta

Haptophyta, also known as Prymnesiophyceae, are a class of algae. Many of these organisms possess a unique, hair-like appendage called a haptonema, located between their two flagella. They lack tubular hairs on their flagella and often have organic scales, some of which can deposit calcium carbonate to form coccoliths.1

Coccolithophorids, a type of haptophyte, may play a role in global warming by absorbing significant amounts of carbon from ocean water. These algae are predominantly marine and planktonic, with approximately 300 known species. Fossil records indicate a significant presence of coccolithophores, particularly during the Mesozoic Era.12