Document Detail

Modular construction of early Ediacaran complex life forms.
MedLine Citation:
PMID:  15256615     Owner:  NLM     Status:  MEDLINE    
Newly discovered, exceptionally preserved, soft-bodied fossils near Spaniard's Bay in eastern Newfoundland exhibit features not previously described from Ediacaran (terminal Neoproterozoic) fossils. All of the Spaniard's Bay taxa were composed of similar architectural elements-centimeter-scale frondlets exhibiting three orders of fracticality in branching. Frondlets were combined as modules atop semi-rigid organic skeletons to form a wide array of larger constructions, including frondose and plumose structures. This architecture and construction define the "rangeomorphs," a biological clade that dominated the Mistaken Point assemblage (575 to 560 million years ago) but does not appear to be ancestral to any Phanerozoic or modern organisms.
Guy M Narbonne
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't     Date:  2004-07-15
Journal Detail:
Title:  Science (New York, N.Y.)     Volume:  305     ISSN:  1095-9203     ISO Abbreviation:  Science     Publication Date:  2004 Aug 
Date Detail:
Created Date:  2004-08-24     Completed Date:  2004-09-10     Revised Date:  2007-11-15    
Medline Journal Info:
Nlm Unique ID:  0404511     Medline TA:  Science     Country:  United States    
Other Details:
Languages:  eng     Pagination:  1141-4     Citation Subset:  IM    
Department of Geological Sciences and Geological Engineering, Queen's University, Kingston, Ontario K7L 3N6, Canada.
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MeSH Terms
Geologic Sediments
Invertebrates* / anatomy & histology,  classification
Newfoundland and Labrador
Comment In:
Science. 2004 Aug 20;305(5687):1115-7   [PMID:  15326344 ]

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