Vendotaenids are ribbon-shaped, carbonaceous, Precambrian macrofossils. They are thought to represent giant sulfide-reducing bacteria, similar to Thiomargarita. Many form genera, including Vendotaenida, have been described.
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Morphology
The fossils reach around 15 cm in length and are around a millimetre in width.
Affinity
Originally interpreted as brown algae, the fossils are now thought to represent sulfide-reducing bacteria.
Occurrence
The carbonaceous fossils, which can be extracted by HF dissolution, are found in precambrian to Early Cambrian rocks, dating from approx. 650 to 530 million years ago.
References
Vendotaenid Wikipedia(Text) CC BY-SA