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Fractofusus (Spindle)
Taxonomy
Fractofusus was named by Gehling and Narbonne (2007). It is considered to be a form taxon. Its type is Fractofusus misrai.
It was assigned to Rangeomorpha by Hofmann et al. (2008) and Brasier et al. (2012).
It was assigned to Rangeomorpha by Hofmann et al. (2008) and Brasier et al. (2012).
Species
F. andersoni, F. misrai (type species)
Synonymy list
| Year | Name and author |
|---|---|
| 2007 | Fractofusus Gehling and Narbonne pp. 372-381 figs. 4-5, 7-12, 14 |
| 2008 | Fractofusus Hofmann et al. p. 9 |
| 2012 | Fractofusus Brasier et al. p. 1119 |
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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. †Fractofusus Gehling and Narbonne 2007 [Spindle]
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†Fractofusus andersoni Gehling and Narbonne 2007 [Spindle]
†Fractofusus misrai Gehling and Narbonne 2007 [Spindle]
Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| M. D. Brasier et al. 2012 | Frond bipolar, comprising two rows of primary branches arranged in irregularly spaced alternations along a furled central axis, forming a zig-zag suture (Figs 7C–D and 8E). Inflation of first-order branches is proximal, while infla- tion of second-order branches tends to be distal. First- order branches show subparallel alignments of units, with displayed structure, often infolded or rotated in juvenile stages. These units are broadly perpendicular to the main central axis, along which they can be either furled or overlapping. Axes of second-order branches are subparal- lel to radiating, often freely displayed and overlapping towards their margins. A basal disc is not seen. |