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Erniettomorpha
Taxonomy
Erniettomorpha was named by Pflug (1972).
It was reranked as the unranked clade Erniettomorpha by Elliott et al. (2016).
It was assigned to Cnidaria by Sepkoski (2002); and to Metazoa by Erwin et al. (2011) and Elliott et al. (2016).
It was reranked as the unranked clade Erniettomorpha by Elliott et al. (2016).
It was assigned to Cnidaria by Sepkoski (2002); and to Metazoa by Erwin et al. (2011) and Elliott et al. (2016).
Synonymy list
| Year | Name and author |
|---|---|
| 1972 | Erniettomorpha Pflug |
| 2002 | Erniettamorpha Sepkoski |
| 2011 | Erniettomorpha Erwin et al. pp. SOM 13 |
| 2016 | Erniettomorpha Elliott et al. |
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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.
Unr. †Erniettomorpha Pflug 1972
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G. †Pteridinium Gürich 1930
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†Pteridinium carolinaense St. Jean 1973
Invalid names: Onegia Keller et al. 1974 [synonym]
Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| D. H. Erwin et al. 2011 | Erniettomorphs are a monophyletic clade of modular organisms in which the modules are smooth, unbranched, and cylindrical in shape. Several taxa are multi-foliate, meaning three or more identical leaf-like petaloids composed of modular tubes are arranged around a central axis. Tubes typically alternate from side to side along the central midline, implying that they are not truly bilaterally symmetrical. Growth results from sequentially adding modular segments that are approximately the same size and shape. |