-
Extinct family of
cephalozoans...
- free of isomers,
often making a "hairband" like
appearance (example
cephalozoans include Yorgia, Praecambridium, Andiva, Archaeaspinus, Ivovicia, Podolimirus...
- (example
cephalozoans include Yorgia, Praecambridium, Andiva, Archaeaspinus, Ivovicia, Spriggina,
Marywadea and Cyanorus. Some
cephalozoans from the family...
- symmetry,
meaning they do not have true
bilateral symmetry. As with
other cephalozoans,
their initial right isomer extends right across the body,
forming a...
- 571–551 Ma PreꞒ Ꞓ O S D C P T J K Pg N
Fossil of
Yorgia waggoneri, a
cephalozoan found on the s****s of the
White Sea.
Scientific classification Domain:...
-
Within that, its
class is
Cephalozoa and
family Yorgiidae.
Until 2004
Cephalozoans were
categorized within the
class Vendiamorpha, so
older records of the...
- ecdysozoans.
Followed by the zero
similarity between the
priapulids with the
cephalozoans that at the time were
pointed out as
ancestors of the arthropods. The...
