Kimmeridgian marl is described as which type of rock?

• A. A limestone-rich clay whose dominant fossil is Exogyra virgula from the Jurassic period.
• B. A pure limestone deposit with no fossils.
• C. A chalk that contains Belemnites.
• D. A limestone-rich clay whose dominant fossil is Exogyra virgula, from the Jurassic period, found in The Aube and great for Pinot Noir

Answer: (D)