D. brouweri group

Mon, 21/01/2008 - 16:09 — Jeremy Young

Citation:

D. brouweri group of Young 1998

Description: 6-rayed discoasters without bifurcations, and forms closely related to D. brouweri with 3 to 5 rays.

Taxa included

	D. brouweri - with proximal ray tip extensions (NN10-18)
	D. asymmetricus - asymmetric 5-rayed variant of D. brouweri (common NN14-16)
	D. tamalis - 4-rayed variant of D. brouweri (common NN14-16)
	D. triradiatus - 3-rayed variant of D. brouweri (acme NN18)
	D. altus - complanate with very large bosses (NN15)
	D. braarudii - with simple ray tips (mostly NN9-11A) D. neorectus - very large with simple ray tips (NN10-11)
	D. calcaris - with asymetric ray tip extensions (NN9-10)