| Basic info | Taxonomic history | Classification | Included Taxa |
| Morphology | Ecology and taphonomy | External Literature Search | Age range and collections |
Tetrathecidae
Taxonomy
Subtaxa
Synonymy list
| Year | Name and author |
|---|---|
| 1968 | Tetrathecidae Sysoyev |
| 2002 | Tetrathecidae Kruse p. 369 |
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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. †Tetrathecidae Sysoyev 1968
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Diagnosis
No diagnoses are available
Measurements
No measurements are available
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| Source: p = phylum | |||||
| Reference: Hendy et al. 2009 | |||||
Age range: base of the Templetonian to the top of the Branchian or 508.00000 to 506.50000 Ma
Collections (3 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Branchian | Canada (Newfoundland and Labrador) | Holmitheca quadricostatus (99574) Hyolithes quadricostatus (99495) | |
| Templetonian | Australia (Queensland) | Holmitheca sp. (70041) |