| 11. | The Austin formation consists of recrystalized, fossiliferous, interbedded chalks and marls.
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| 12. | Both are flat-lying, fossiliferous formations dating from the Cretaceous Period.
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| 13. | Geologically the cliffs are of Tertiary age and are composed of fossiliferous limestone.
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| 14. | The Austin Chalk consists of recrystalized, fossiliferous, interbedded chalks and marls.
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| 15. | It consists of hard fossiliferous limestones reaching a thickness of 50 80 m.
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| 16. | The lower facies comprises the Peterborough Member, a fossiliferous organic-rich mudstone.
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| 17. | It is sculpted from fossiliferous limestone and measures.
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| 18. | The abundantly fossiliferous, nodular limestone at the base overlies the " calico ".
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| 19. | I have some samples of Ordovician fossiliferous limestone.
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| 20. | Its sediments are approximately 400 feet thick, and its upper layers feature fossiliferous invertebrates.
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