Calcareous (/kælˈkɛəriəs/) is an adjective meaning "mostly or partly composed of calcium carbonate", in other words, containing lime or being chalky. The...

The calcareous sponges (class Calcarea) are members of the animal phylum Porifera, the cellular sponges. They are characterized by spicules made of calcium...

Calcareous grassland (or alkaline grassland) is an ecosystem associated with thin basic soil, such as that on chalk and limestone downland. Plants on calcareous...

A calcareous glade is a type of ecological community that is found in the central Eastern United States. Calcareous glades occur where bedrock such as...

Calcareous dinoflagellate cysts or calcareous dinocysts are dinoflagellate cysts produced by a group of peridinoid dinoflagellates, called calcareous...

J.J. Amann – Arizona calcareous moss Mnium blyttii Bruch & Schimp. – Blytt's calcareous moss Mnium hornum Hedw. – horn calcareous moss Mnium jungermannia...

Calcareous nannofossils are a class of tiny (less than 30 microns in diameter) microfossils that are similar to coccoliths deposited by the modern-day...

The Calcareous Grit is a geologic formation in England. It preserves fossils dating back to the Jurassic period. Earth sciences portal England portal Paleontology...

Raphidonema is an extinct genus of calcareous sponges. This genus is known in the fossil records from the Cretaceous period of France and United Kingdom...

Alps (‹See Tfd›German: Nördliche Kalkalpen), also called the Northern Calcareous Alps, are the ranges of the Eastern Alps north of the Central Eastern...