Coccolith genera inc sed

Daughter taxa (time control age-window is: 0-800Ma)					Granddaughter taxa
				Aliculosphaera Placolith with strongly distal shield, showing high birefringence	Aliculosphaera subantarctica
				Biantholithus Circular to stellate placoliths contructed from 6-12, large, radial elements. Often give the appearance of stellate nannoliths with low birefringence in LM.	Biantholithus astralis Biantholithus flosculus Biantholithus hughesii Biantholithus sparsus Biantholithus sp.
				Camuralithus Small, inconspicuous 3-tiered placoliths with central area spanned by diagonal cross bars.	Camuralithus pelliculatus Camuralithus sp.
				Centumgemina Small oblong placolith coccoliths with the rim apparently formed from a single cycle of elements. Addtional elements are present in the central area of C. simplex but absent from it (possibly due to preservation) in C. scissurata. Numerous coccoliths per coccosphere.	Centumgemina scissurata Centumgemina simplex Hornibrookina apellanizii
				Craterolithus	Craterolithus hoerstgensis
				Ellipsolithus Elliptical to oblong placoliths with shields formed from numerous narrow elements and central areas spanned by plates that may be perforate.	Ellipsolithus anadoluensis Ellipsolithus aubryae Ellipsolithus bollii Ellipsolithus distichus Ellipsolithus lajollaensis Ellipsolithus macellus Ellipsolithus pumex Ellipsolithus sp.
				Gladiolithus Dimorphic - BCs tube-like; AACs simple plates, typically formed of two elements.	Gladiolithus flabellatus Gladiolithus striatus Gladiolithus adeyi Gladiolithus brevis Gladiolithus contus Gladiolithus ornatus Gladiolithus sp.
				Ilselithina Placolith-like coccoliths, with distal shield reduced to ring of spines.	Ilselithina fusa Ilselithina iris Ilselithina sp.
				Leesella Relatively tall nannofossils that flare from a small basal disc to form a trumpet shape. They have a narrow, axial canal and are usually seen in side view.	Leesella procera Leesella sp.
				Luminocanthus	Luminocanthus eolutetiensis Luminocanthus hirsutus Luminocanthus plenilutetiensis
				Pedinocyclus Typically circular planolith coccoliths with broad, flat shield and rim elements joined along inclined sutures. Shield is dark in XPL but a narrow, brighter tube cycle may be present.	Pedinocyclus gibbsiae Pedinocyclus larvalis Geminilithella okayi Pedinocyclus sp.
				Petasus Medum-sized, narrow-rimmed placolith surmounted by domal protrusion with hexagonal pores	Petasus faviformis

Taxonomy:

Distinguishing features:
Parent taxon (Coccolith families inc sed): 2N: Various heterococcolith groups not obviously related to the well-defined orders
N: mostly unknown
This taxon: Heterococcolith genera which cannot be assigned to any family

Farinacci & Howe catalog pages: Coccolith genera inc sed [no catalog entry yet]

Morphology:

Ecology & Biogeography

Geological Range:
Last occurrence (top): Extant. Data source: Total of range of species in this database
First occurrence (base): at base of Danian Stage (0% up, 66Ma, in Danian stage). Data source: Total of range of species in this database

Plot of occurrence data:

• Range-bar - range as quoted above, pink interval top occurs in, green interval base occurs in.
• Triangles indicate an event for which a precise placement has been suggested
• Neptune data: this is a higher taxon page so Neptune data is not plotted. For the customisable plot option go to a genus page Parent: Coccolith families inc sed

Coccolith genera inc sed compiled by Jeremy R. Young, Paul R. Bown, Jacqueline A. Lees viewed: 8-2-2023 Taxon Search: Advanced Search AphiaID: not found Short stable page link: https://mikrotax.org/Nannotax3/index.php?id=312 Go to Archive.is to create a permanent copy of this page - citation notes

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