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Lanulatisphaera laufeldii
Taxonomy
Trachysphaeridium laufeldi was named by Vidal (1976). It is considered to be a form taxon. It is the type species of Lanulatisphaera.
It was recombined as Lanulatisphaera laufeldii by Porter and Riedman (2016).
It was recombined as Lanulatisphaera laufeldii by Porter and Riedman (2016).
Synonymy list
| Year | Name and author |
|---|---|
| 1976 | Trachysphaeridium laufeldi Vidal |
| 1983 | Trachysphaeridium laufeldi Knoll and Calder p. 494 figs. Pl 60, figs 1,2 |
| 2016 | Lanulatisphaera laufeldii Porter and Riedman p. 827 |
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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.
†Lanulatisphaera laufeldii Vidal 1976
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Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| S. M. Porter and L. A. Riedman 2016 | Double-walled, originally spheroidal, organic walled microfossil bearing abundant submicron-diameter solid filamentous processes that arise from the exterior of the inner vesicle and fuse distally forming cone-like structures ~1 to 3 μm
long or fuse and branch forming complex networks. Outer envelope bearing ~50 to 100 nm diameter mammillae; filamentous processes appear to make no contact with outer envelope (emended from Vidal, 1976b.) |
Measurements
No measurements are available
No ecological data are available
Age range: Tonian or 1000.00000 to 720.00000 Ma
Collections (19 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Tonian | Svalbard and Jan Mayen | Trachysphaeridium laufeldi (227777) | |
| Tonian | Australia (South Australia) | Lanulatisphaera laufeldii (238057 238058) | |
| Tonian | USA (Arizona) | Lanulatisphaera laufeldii (237964 237969 237970 237971 237973 237983 237984 237985 237986 237988 237993 238000 238004 238006 238008 238009) |