ISSN:
1476-4687
Source:
Nature Archives 1869 - 2009
Topics:
Biology
,
Chemistry and Pharmacology
,
Medicine
,
Natural Sciences in General
,
Physics
Notes:
[Auszug] The relationships of thelodonts as previously known have been controversial: they were considered to be relatives of pteraspidiforms, anaspidiforms, gnathostomes or chondrichthyans1'2, or to be among the most primitive vertebrates2'3. Experts also disagree about their monophyly4'5. Scale structure ...
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1038/361442a0
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