Lapideacassaceae is a

family Family (from la, familia) is a group of people related either by consanguinity (by recognized birth) or affinity (by marriage or other relationship). The purpose of the family is to maintain the well-being of its members and of society. Idea ...

haptophyte The haptophytes, classified either as the Haptophyta, Haptophytina or Prymnesiophyta (named for '' Prymnesium''), are a clade of algae. The names Haptophyceae or Prymnesiophyceae are sometimes used instead. This ending implies classification at ...

s belonging to the class

Prymnesiophyceae Prymnesiophyceae is a haptophyte class. Although it was originally described by Casper in 1972, it did not receive a Latin diagnosis (a requirement for valid publication under the International Code of Botanical Nomenclature The ''Internatio ...

. The family Lapideacassaceae accommodate ‘bell-shaped’ to cylindrical nannoliths with body consisting of a single or several vertically elongated calcite elements and often bearing apical spine(s). The family Lapideacassaceae contains two genera, '' Mennerius'' and '' Tintinnabuliformis''. Members of the Lapideacassaceae occur sporadically but widely in the

Cretaceous The Cretaceous ( ) is a geological period that lasted from about 145 to 66 million years ago (Mya). It is the third and final period of the Mesozoic Era, as well as the longest. At around 79 million years, it is the longest geological period of ...

Palaeogene The Paleogene ( ; also spelled Palaeogene or Palæogene; informally Lower Tertiary or Early Tertiary) is a geologic period and system that spans 43 million years from the end of the Cretaceous Period million years ago ( Mya) to the beginning o ...

and Neogene sediments in the Northern Hemisphere, South Atlantic, South Africa, Tanzania, Indian Ocean and Australia.

References

Nannotax3 - Mesozoic - Lapideacassaceae by: Jeremy R. Young, Paul R. Bown, Jacqueline A. Lee

(viewed: 21-6-2017) Haptophyte families Eukaryote families {{Haptophyte-stub