Basic info | Taxonomic history | Classification | Included Taxa |
Morphology | Ecology and taphonomy | External Literature Search | Age range and collections |
Contractenidae
Taxonomy
Subtaxa
Synonymy list
Year | Name and author |
---|---|
1973 | Contractenidae Ljaschenko |
1994 | Contractenidae Farsan p. 53 figs. Table 9 |
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If no rank is listed, the taxon is considered an unranked clade in modern classifications. Ranks may be repeated or presented in the wrong order because authors working on different parts of the classification may disagree about how to rank taxa.
Fm. †Contractenidae Ljaschenko 1973
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G. †Contractenus Ljaschenko 1959
G. †Semicyclus Churkin and Carter 1970
Diagnosis
No diagnoses are available