Nannotax3 - ntax_cenozoic - D. musicus group

D. musicus group

Classification: ntax_cenozoic -> Discoasterales -> Discoasteraceae -> Discoaster -> D. musicus group
Sister taxa: D. brouweri group, D. pentaradiatus group, D. quinqueramus group, D. variabilis group, D. exilis group, D. musicus group, D. deflandrei group ⟩⟨ D. nodifer group, D. lodoensis group, D. multiradiatus group, D. araneus group, D. sp.

Daughter taxa (time control age-window is: 0-800Ma)		Granddaughter taxa
	D. sanmiguelensis & variants - distal boss inside central area
	Discoaster sanmiguelensis A species of the D. sanmiguelensis group with parallel-sided rays and hexagonal central area periphery.
	Discoaster ulnatus A species of the D. sanmiguelensis group with relatively long rays that taper to form clubbed termi- nations.
	Discoaster patulus A species of the D. sanmiguelensis group with rays that taper and then flare to form clubbed termi- nations.
	D. musicus & variants - distal boss ridges extend beyond c area
	Discoaster musicus Similar to D. exilis , but with wide central area and large distal boss, prominent sutural ridges extending between the rays.
	Discoaster carneyi A species of the D. musicus group having slender, tapered rays with simple bifurcations
	Catinaster-like forms
	Discoaster virginianus small to medium sized Catinaster-like species with stem on both proximal and distal sides	D. catinatus D. gamberi
	Discoaster transitus Small thick discoaster with small central area, bifurcations nearly touching
	Discoaster micros Small discoaster with short arms; bifurcations almost touching and thicker than the arms	D. catillomicros D. stellimicros
	Discoaster arneyi A thick species of the D. micros group with long rays, nearly flat bifurcations and a featureless central area.
	Discoaster premicros A thick species of the D. micros group with short rays, flat bifurcations and a featureless central area

Taxonomy:

Citation: Discoaster musicus group de Kaenel et al. 2017

Rank: species group

Farinacci & Howe catalog pages: Discoaster musicus group [no catalog entry yet]

Search data:

Tags	LITHS:
Metrics	Lith size: 0->0µm;

The morphological data given here can be used on the advanced search page. See also these notes

Geological Range:
Last occurrence (top): in lower part of Tortonian Stage (24% up, 10.6Ma, in Tortonian stage). Data source: Total of range of species in this database
First occurrence (base): in mid part of Langhian Stage (49% up, 14.9Ma, in Langhian 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: Discoaster

References:

de Kaenel, E., Bergen, J. A., Browning, E., Blair, S. A. & Boesiger, T. M. (2017). Uppermost Oligocene to Middle Miocene Discoaster and Catinaster taxonomy and stratigraphy in the circum North Atlantic Basin: Gulf of Mexico and ODP Leg 154. Journal of Nannoplankton Research. 37(2-3): 215-244. gs V O

D. musicus group compiled by Jeremy R. Young, Paul R. Bown, Jacqueline A. Lees viewed: 19-4-2021

Taxon Search:

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Short stable page link: https://mikrotax.org/Nannotax3/index.php?id=1544 Go to Archive.is to create a permanent copy of this page - citation notes

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