| Basic info | Taxonomic history | Classification | Included Taxa |
| Morphology | Ecology and taphonomy | External Literature Search | Age range and collections |
Heteroschisma alternatus
Taxonomy
Codaster alternatus was named by Lyon (1857).
It was recombined as Heteroschisma alternatum by Macurda (1983); it was recombined as Heteroschisma alternatus by Bauer (2018).
It was recombined as Heteroschisma alternatum by Macurda (1983); it was recombined as Heteroschisma alternatus by Bauer (2018).
Sister species lacking formal opinion data
Synonymy list
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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.
†Heteroschisma alternatus Lyon 1857
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Diagnosis
No diagnoses are available
Measurements
No measurements are available
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| Source: o = order, c = class, p = phylum | |||||
| References: Whittington et al. 1997, Aberhan 1992, Aberhan et al. 2004 | |||||
Age range: Southwoodian or 393.47000 to 387.95000 Ma
Collections: one only
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Southwoodian | USA (Indiana) | Codaster alternatus (230505) |