Discoaster
Template:Short description Script error: No such module "Italic title". Template:Taxobox/core Script error: No such module "Side box". Discoaster is a genus of extinct star-shaped marine algae, with calcareous exoskeletons of between 5-40 μm across that are abundant as nanofossils in tropical deep-ocean deposits of Neogene age. Discoaster belongs to the haptophytes. About 100 species can be recognized.[1]
Biostratigraphic significance
The International Commission on Stratigraphy (ICS) has assigned the extinction of Discoaster brouweri as the defining biological marker for the start of the Calabrian Stage of the Pleistocene, 1.806 million years ago. ICS has assigned the extinction of Discoaster pentaradiatus and Discoaster surculus as the defining biological marker for the start of the Gelasian Stage, 2.588 million years ago, the earliest stage of the Pleistocene. ICS further assigned the extinction of Discoaster kugleri as biological marker for the start of the Tortonian Stage of the Miocene, 11.62 million years ago.
Species
Some species in this genus include:[1][2][3]
Discoaster Species Authority D. asymmetricus GartnerScript error: No such module "Check for unknown parameters". D. bellus Bukry & PercivalScript error: No such module "Check for unknown parameters". D. berggrenii BukryScript error: No such module "Check for unknown parameters". D. bollii Martini & BramletteScript error: No such module "Check for unknown parameters". D. brouweri Bramlette & RiedelScript error: No such module "Check for unknown parameters". D. calcaris GartnerScript error: No such module "Check for unknown parameters". D. exilis Martini & BramletteScript error: No such module "Check for unknown parameters". D. hamatus Martini & BramletteScript error: No such module "Check for unknown parameters". D. intercalaris BukryScript error: No such module "Check for unknown parameters". D. kugleri Martini & Bramlette (1963)Script error: No such module "Check for unknown parameters". D. loeblichii BukryScript error: No such module "Check for unknown parameters". D. neohamatus Bukry & BramletteScript error: No such module "Check for unknown parameters". D. neorectus BukryScript error: No such module "Check for unknown parameters". D. pentaradiatus (Tan, 1931) Bramlette & RiedelScript error: No such module "Check for unknown parameters". D. quintatus GartnerScript error: No such module "Check for unknown parameters". D. surculus Martini & BramletteScript error: No such module "Check for unknown parameters". D. toralus Ellis, Lohmann, & WrayScript error: No such module "Check for unknown parameters". D. triradiatus Tan (1931)Script error: No such module "Check for unknown parameters". D. variabilis Martini & BramletteScript error: No such module "Check for unknown parameters". D. arneyi —Script error: No such module "Check for unknown parameters".
References
<templatestyles src="Reflist/styles.css" />
Script error: No such module "Check for unknown parameters".