Basic info | Taxonomic history | Classification | Included Taxa |
Morphology | Ecology and taphonomy | External Literature Search | Age range and collections |
Coronatida
Taxonomy
Subtaxa
Synonymy list
Year | Name and author |
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2002 | Coronatida Sepkoski |
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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.
Or. †Coronatida
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G. †Octomedusa Johnson and Richardson, Jr. 1968
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†Octomedusa pieckorum Johnson and Richardson, Jr. 1968
Diagnosis
No diagnoses are available
Measurements
No measurements are available
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Source: c = class | |||||
Reference: Aberhan et al. 2004 |
Age range
Maximum range based only on fossils: base of the Middle Cambrian to the top of the Desmoinesian or 509.00000 to 306.00000 Ma
Minimum age of oldest fossil (stem group age): 497.0 Ma
Minimum age of oldest fossil (stem group age): 497.0 Ma
Collections (2 total)
Time interval | Ma | Country or state | Original ID and collection number |
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Middle Cambrian | USA (Utah) | Coronatida indet. (96868) | |
Desmoinesian | USA (Illinois) | Octomedusa pieckorum (232886) |