Palaeoanatomy and biological affinities of a Cambrian deuterostome (Stylophora)

Nature ◽  
2005 ◽  
Vol 438 (7066) ◽  
pp. 351-354 ◽  
Author(s):  
Sébastien Clausen ◽  
Andrew B. Smith
Keyword(s):  
Biological Affinities

A revision ofReduviasporonitesWilson 1962: Description, illustration, comparison and biological affinities

Palynology ◽  
2002 ◽  
Vol 26 (1) ◽  
pp. 35-58 ◽  
Author(s):  
C.B. Foster ◽  
M.H. Stephenson ◽  
C. Marshall ◽  
G.A. Logan ◽  
P.F. Greenwood
Keyword(s):  
Biological Affinities

Spindle-shaped Ediacara fossils from the Mistaken Point assemblage, Avalon Zone, Newfoundland

2007 ◽  
Vol 44 (3) ◽  
pp. 367-387 ◽  
Author(s):  
James G Gehling ◽  
Guy M Narbonne
Keyword(s):  
Deep Sea ◽  
Phylogenetic Position ◽  
Photic Zone ◽  
Sea Floor ◽  
Biological Affinities

The Mistaken Point assemblage of the Ediacara fossils is dominated by rangeomorphs with homologous fractal branching elements. The most distinctive are the fusiform fossils, herein named Fractofusus misrai n.gen., and n.sp., and Fractofusus andersoni n.gen., and n.sp. Although endemic to the Newfoundland portion of the Avalonia terrane, they dominated deep sea-floor communities below the photic zone, in the mid-Ediacaran Period (ca. 575–560 Ma). Their biological affinities remain uncertain, but their architecture suggests a phylogenetic position near the base of the Metazoa.

Evidence from Recent Plankton Regarding the Biological Affinities of Tasmanites Newton 1875 and Leiosphaeridia Eisenack 1958

1962 ◽  
Vol 99 (4) ◽  
pp. 353-362 ◽  
Author(s):  
D. Wall
Keyword(s):  
Green Algae ◽  
Systematic Position ◽  
Previous Literature ◽  
Mode Of Life ◽  
Biological Affinities

AbstractFollowing a bricf survey of previous literature concerning microfossils of the genera Tasmanites Newton 1875 and Leiosphaeridia Eisenack 1958 (generally known as leiospheres), two present day green algae are described (Pachysphaera pelagica Ostenfeld 1899 and Halosphaera minor Ostenfeld 1899). These organisms are compared with members of the fossil genera reviewed above and on the basis of this comparison it is concluded that the biological affinities of Tasmanites and some species of Leiosphaeridia lie with the Chlorophyceae. A possible mode of life is suggested for the fossils and the systematic position of the genera Tasmanites and Leiosphaeridia is reviewed but not altered.

Sign in / Sign up

Export Citation Format

Share Document