Taxon description
Bradshaw, 1981
Description: Vertical infilled tubes, 10-20 mm in diameter and approximately 60 mm long. May be found as scattered, isolated tubes (Fig. 22) or in small groups. The infilled burrows weather out as rods, often with a rounded base.
Discussion: Cylindricum differs from Skolithos in its greater diameter and shallower depth, and resembles burrows in Miocene and Recent river sands that are attributed to tiger beetles (see Frey 1975, fig. 2.1).
Classification
References based on distribution
- Kaljo, 1958b Saku Oandu Stage
- Kaljo, 1961a Odulemma old quarry Nabala Stage
- Kaljo, 1961a Kõrgessaare outcrop Vormsi Stage
- Kaljo, 1961a Saxby Vormsi Stage
- Kaljo, 1961a Rabivere quarry Pirgu Stage
- Kaljo, 1961a Hosholm shore Pirgu Stage
- Kaljo, 1970a (ed) Paadla Stage
- Wedekind, 1927 Djupvik, Gotland Silurian
- Eichwald, 1861a Silurian
- Stridsberg, 1985 Gotland Ludlow
- Dybowski, 1873c Suuremõisa, Hiiumaa
- Dybowski, 1873c Vormsi Island