| Basic info | Taxonomic history | Classification | Included Taxa |
| Morphology | Ecology and taphonomy | External Literature Search | Age range and collections |
Heterolasma
Taxonomy
Heterolasma was named by Ehlers (1919) [Sepkoski's age data: S Ldov-u , S Wenl-l]. It is not extant.
It was assigned to Ketophyllidae by Hill (1981); and to Rugosa by Sepkoski (2002).
It was assigned to Ketophyllidae by Hill (1981); and to Rugosa by Sepkoski (2002).
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.
G. †Heterolasma Ehlers 1919
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Diagnosis
No diagnoses are available
Measurements
No measurements are available
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| Source: o = order, c = class | |||||
| Reference: Kiessling 2004 | |||||
Age range: Llandovery or 443.40000 to 433.40000 Ma
Collections: one only
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Llandovery | Canada (Ontario) | H. sp. (513) |