Genus
Apectoichnus Donovan, 2018
Taxon description
Mayoral et al., 2020
Revised diagnosis: Apectoichnus predominantly parallel to the grain or fibres in a xylic substrate, length/width ratio greater than 5. Sinuous to contort.
Melnyk et al., 2020 (for 2021)
Emended diagnosis.—Elongate borings in xylic substrata and associated resins, nearly circular in cross section, with an approximately constant diameter. Borings are straight to sinuous or contorted and intertwined and predominantly occur parallel to the fibers of xylic substrata (modified from Donovan, 2018; Mayoral et al., 2020).
Wisshak et al., 2019a
Macroboring; substrate xylic; tracemaker invertebrate
Selection of related publications
Knaust, D., Schnick, H. 2024. Trace fossils from the Maastrichtian chalk of the Isle of Rügen, north-east Germany. Geologie en Mijnbouw 103, DOI:10.1017/njg.2024.6
Mayoral, E., Santos, A., Vintaned, J. G., Wisshak, M., Neumann, C., Uchman, A., Nel, A. 2020. Bivalve bioerosion in Cretaceous-Neogene amber around the globe, with implications for the ichnogenera Teredolites and Apectoichnus. Palaeogeography, Palaeoclimatology, Palaeoecology 538, 109410. DOI:10.1016/j.palaeo.2019.109410
Melnyk, S., Packer, S., Zonneveld, J., Gingras, M. K. 2020. A new marine woodground ichnotaxon from the Lower Cretaceous Mannville Group, Saskatchewan, Canada. Journal of Paleontology 95, 1, 162-169. DOI:10.1017/jpa.2020.63
Donovan, S. K., Portell, R. W. 2019. Invertebrate borings from the Eocene of Seven Rivers, parish of St. James, western Jamaica. Swiss Journal of Palaeontology 138, 2, 277-283. DOI:10.1007/s13358-019-00190-8
Donovan, S. K., den Ouden, N., Jagt, J. W. M. 2018. Preservation of borings: contrasting examples from the type Maastrichtian (Upper Cretaceous), southern Limburg, the Netherlands. Proceedings of the Geologists' Association 129, 1, 12-16. DOI:10.1016/j.pgeola.2017.08.004
Kelly, S. R. A., Bromley, R. G. 1984. Ichnological nomenclature of clavate borings. Palaeontology 27, 4, 793-807.
List of species
1. Apectoichnus lignummasticans Melnyk et al., 2020 | Albian
Klassificering
| Organism group | Biota |
| Ichnofossil group | Ichnofossils |
| Bioerosional trace fossils | |
| Family | Gastrochaenolitidae |
| Genus | Apectoichnus |
| Species | lignummasticans |
| longissimus | |
| Genus | Clavichnus |
| Gastrochaenolites | |
| Palaeosabella | |
| Phrixichnus | |
| Teredolites | |
| Xylokrypta |
References based on distribution