-
Praecambridium sigillum is an
extinct organism that
superficially resembles a
segmented trilobite-like arthropod. It was
originally described as being...
-
Fedonkin in 1985 for such
animals as ****insonia, Vendia, Cephalonega,
Praecambridium and
currently many
other Proarticulata are
described (see list). Due...
- †Marywadea †Cyanorus †
Praecambridium,
sometimes included into Yorgiidae.
Spriggina floundersi Cyanorus singularis Praecambridium sigillum Cephalozoa Yorgiidae...
- cephalothorax. In the Late
Precambrian or
Lower Cambrian Proarticulata species Praecambridium sigillum, that
superficially resembles a trilobite, the term is also...
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closest relative,
separated from ****insonia and
closer to Yorgia,
Praecambridium,
Archaeaspinus and Vendia,
since all of them are
sharing a dextrally...
- 2004 †
Praecambridium Glaessner and Wade, 1966,
previously classified as Yorgiidae; now
considered a
juvenile form of
Spriggina †
Praecambridium sigillum...
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Eukaryota Kingdom:
Animalia Phylum: †Proarticulata class: †Cephalozoa Family: †Yorgiidae Ivantsov, 2001
Genera †
Yorgia †
Archaeaspinus †
Praecambridium ?...
-
Fedonkin as a
problematic organism,
being grouped together with Vendia,
Praecambridium and
Vendomia as
possible stem-group
arthropods due to a
vague similarity...
- is
probably a
member of Proarticulata, as it is
strongly similar to
Praecambridium sigillum in the
general shape, and the
presence of
hooklike isomers;...
- a "hairband" like appearance. (example
cephalozoans include Yorgia,
Praecambridium, Andiva, Archaeaspinus, Ivovicia, Spriggina,
Marywadea and Cyanorus...
