Vendotaenid

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.

Morphology
The fossils reach around 15 cm in length and are around a millimeter 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. 650-530 MYA.