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.

Synonyymit
1937     Dictyoporus nodosus n. sp. — Mägdefrau , pp. 55, fig. 4:10
1957     Clionia fenestralis — Elias , pp. 383, fig. 4:2
1962     Dictyoporus nodosus Mägdefrau, 1937 — Häntzschel , pp. W230, fig. 144-5 (reproduced from Mägdefrau 1937)
1965     Dictyoporus nodosus Mägdefrau, 1937 — Pugaczewska , pp. 75, fig. 1:1
1970     Dictyoporus nodosus Mägdefrau, 1937 — Pugaczewska , pp. 427
1975     Dictyoporus nodosus Mägdefrau, 1937 — Häntzschel , pp. W127, fig. 78-5 (reproduced from Mägdefrau 1937)
1977     Cicatricula retiformis ichnosp. nov. — Palmer & Palmer , pp. 185, fig. 6
1979     borings without name — Lindström , pp. 154, fig. 2A-C
1980     Dictyoporus garsonensis ichnosp. nov. — Elias , pp. 273, fig. 1-3
1982     Calcideletrix breviramosa — Ghare , pp. 132, fig. 1:6
Aiheeseen liittyvät julkaisut
Breton, G., Wisshak, M., Néraudeau, D., Morel, N. 2017. Parasitic gastropod bioerosion trace fossil on Cenomanian oysters from Le Mans, France and its ichnologic and taphonomic context. Acta Palaeontologica Polonica 62, 1, 45–57. DOI:10.4202/app.00304.2016
Wisshak, M. 2017. Taming an ichnotaxonomical Pandora's box: revision of dendritic and rosetted microborings (ichnofamily: Dendrinidae). European Journal of Taxonomy 390, 1-99. DOI:10.5852/ejt.2017.390
Lindström, M. 1979. Probable sponge borings in Lower Ordovician limestone of Sweden. Geology 7, 3, 152-155. DOI:10.1130/0091-7613(1979)7<152:PSBILO>2.0.CO;2
Palmer, T. J., Palmer, C. D. 1977. Faunal distribution and colonization strategy in a Middle Ordovician hardground community. Lethaia 10, 3, 179-199. DOI:10.1111/j.1502-3931.1977.tb00608.x
Loading...
Luokittelu
Organism groupBiota
Ichnofossil groupIchnofossils
Bioerosional trace fossils
FamilyDendrinidae
GenusDictyoporus
Speciesbalani
garsonensis
nodosus
Levinneisyys ja viitteet