Species

Dictyoporus nodosus Mägdefrau, 1937

Taxon description

Donovan & Simpson, 2021

Diagnosis:(Slightly modified after Wisshak2017,p. 43).‘Radiating, reticulate system of etched channelsor prostrate tubular borings at or immediately beneaththe surface of calcareous or bone substrates. Highdegree of anastomosis, leaving only a few peripheralbranches blind ending.’(See also H€antzschel1975,p.W127; Taylor and Wilson2003, table 2).

Wisshak, 2017

Emended diagnosis. Overall shape as well as gallery diameter and mesh-size varies but generally decreases towards the periphery of the trace. Branching points flattened parallel to the substrate surface and with rounded outline. Peripheral branches taper to pointed ends and have a jagged appearance. Galleries either developed as open channels and/or prostrate tunnels with few rhizoidal connections to the substrate surface.

Synonymy list

1937 Dictyoporus nodosus n. sp. — Mägdefrau , pp. 55, fig. pl. 4 fig. 10

1957 Clionia fenestralis — Elias

1962 Dictyoporus nodosus Mägdefrau, 1937 — Häntzschel , pp. 230

1965 Dictyoporus nodosus Mägdefrau, 1937 — Pugaczewska , pp. 75, fig. pl. 1:1

1970 Dictyoporus nodosus Mägdefrau, 1937 — Pugaczewska , pp. 427

1977 Cicatricula retiformis — Palmer & Palmer

2017 Dictyoporus nodosus Mägdefrau, 1937 — Wisshak , pp. 44, fig. 15

2021 Dictyoporus nodosus Mägdefrau, 1937 — Donovan & Simpson , pp. 57, fig. Fig. 1

Classification

Organism group	Biota
Ichnofossil group	Ichnofossils
	Bioerosional trace fossils
Family	Dendrinidae
Genus	Dictyoporus
Species	balani
	garsonensis
	nodosus