-
Sprigginidae is an
extinct family of the
class Cephalozoa,
characterized by
having a
greater number of
isomers than its
sister taxon, Yorgiidae. They lived...
- (millions of
years ago).
Cephalozoa includes the
families Yorgiidae and
Sprigginidae: †
Archaeaspinus Ivantsov, 2007 (synonym of Archaeaspis) † Archaeaspinus...
-
Praecambridium sigillum is an
extinct organism that
superficially resembles a
segmented trilobite-like arthropod. It was
originally described as being...
- 1955 †****insoniidae
Harrington & Moore, 1955 †Cephalozoa Ivantsov. 2004 †
Sprigginidae Glaessner, 1958 †Yorgiidae Ivantsov, 2001 For more taxa, see text...
- Kingdom:
Animalia Phylum: †Proarticulata class: †Cephalozoa Family: †
Sprigginidae Genus: †Spriggina Glaessner, 1958 Species: †S. floundersi
Binomial name...
- Kingdom:
Animalia Phylum: †Proarticulata class: †Cephalozoa Family: †
Sprigginidae Genus: †Cyanorus Ivanstov, 2004 Species: †C. singularis
Binomial name...
- Kingdom:
Animalia Phylum: †Proarticulata class: †Cephalozoa Family: †
Sprigginidae Genus: †Marywadea Glaessner, 1976 Species: †M. ovata
Binomial name †Marywadea...
