''Cretacimermis'' is a collective group
genus
Genus ( plural genera ) is a taxonomic rank used in the biological classification of living and fossil organisms as well as viruses. In the hierarchy of biological classification, genus comes above species and below family. In binomial nom ...
of fossil
nematodes from the
Cretaceous
The Cretaceous ( ) is a geological period that lasted from about 145 to 66 million years ago (Mya). It is the third and final period of the Mesozoic Era, as well as the longest. At around 79 million years, it is the longest geological period of ...
that cannot be placed in extant genera.
Species
* †''C. aphidophilus''
Poinar, 2017
* †''C. chironomae''
Poinar, 2011
* †''C. libani''
( Poinar, Acra & Acra, 1994)
* †''C. protus''
Poinar & Buckley, 2006
See also
* ''
Heydenius
''Heydenius'' is a collective group genus of fossil nematodes from the Tertiary period
Tertiary ( ) is a widely used but obsolete term for the geologic period from 66 million to 2.6 million years ago.
The period began with the demi ...
''
References
Mermithidae
Prehistoric protostome genera
Enoplea genera
Taxa named by George Poinar Jr.
{{Enoplea-stub