perekond
Polykladichnus Fürsich, 1981
Taksoni kirjeldused
Schlirf, 2005
Emended diagnosis: Lined or unlined, vertical to steeply oblique tubes with single or multiple Y- or U-shaped, upward branched bifurcation and slight enlargement at junctions; tubes usually connecting to the bedding surface.
Hanken et al., 2016
This trace fossil occurs as very thin, tubular, branched structures in sandstones, about 1 mm wide, forming arcs and irregular forks with upward branches. They are filledwith muddy material. The upward branching differs in this trace fossil from Chondrites.
Valik taksonit käsitlevast teaduskirjandusest
Hanken, N.-M., Uchman, A., Nielsen, J. K., Olaussen, S., Eggebø, T., Steinsland, R. 2016. Late Ordovician trace fossils from offshore to shallow water mixed siliciclastic and carbonate facies in the Ringerike Area, Oslo Region, Norway. Ichnos 23, 3-4, 189-221. DOI:10.1080/10420940.2016.1199427
Klassifikatsioon
Levik kirjandusandmetel
- Hanken et al., 2016 Store Svartøya Ülem-Ordoviitsium