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| Morphology | Ecology and taphonomy | External Literature Search | Age range and collections |
Proterocladus major
Taxonomy
Proterocladus major was named by Butterfield et al. (1994). It is the type species of Protocladus, Proterocladus.
Synonymy list
| Year | Name and author |
|---|---|
| 1994 | Proterocladus major Butterfield et al. p. 20 figs. Figs. 6A- J, 7C |
| 2020 | Proterocladus major Tang et al. p. 544 |
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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.
†Proterocladus major Butterfield et al. 1994
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Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| Q. Tang et al. 2020 | Thallus consisting of multicellular, uniseri- ate and branching filaments with intercellular septa. Filaments are typically constricted at septa. Branches typically emanate laterally from a cell in the central axis and subjacent to a septum. Lateral branches themselves can be septate. Maximally one branch per cell. Multiple orders of branches can occur, resulting in apical or upward growth. A subdiscoidal holdfast may be present. Cells typi- cally elongate, thin-walled, mostly cylindrical but globose, clavate, cyathiformanddoliformhetermorphiccellsareoccasionallypres- ent. Cell width gradually increases distally (or adapically). Apical cells round or capitate, sometimes bearing a narrow extension at the distal end. |
Measurements
No measurements are available
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| Source: p = phylum | |||||
| Reference: Kiessling 2004 | |||||
Collections
No collection or age range data are available