perekond
Canaliparva Furlong et McRoberts, 2014
Taksoni kirjeldused
Wisshak et al., 2019a
Microboring; substrate calcareous; tracemaker invertebrate
Buatois et al., 2017
Category of architectural design: 2.61. U-shaped borings.
Furlong & McRoberts, 2014
Diagnosis.—Cylindrical tunnels, straight to moderately curved, circular in cross section with very small diameters (~0.2 mm), variable in length; branching/forking infrequently; walls smooth. Fully developed tunnels vertically U-shaped, entering and exiting at very low angles to the shell surface; tunnel entrances and exits vary from circular to elliptical. Tunnels that are not fully U-shaped may terminate with a tapering or swollen chamber or maintain a uniform diameter along the length of the tunnel. All borings are located within the upper and middle shell substrate of the host.
Klassifikatsioon
organismirühm | Biota |
ihnorühm | Ichnofossils |
Bioerosional trace fossils | |
sugukond | Osteichnidae |
perekond | Asthenopodichnium |
Canaliparva | |
liik | circularis |
perekond | Caulostrepsis |
Maeandropolydora | |
Osteichnus | |
Pseudopolydorites | |
Sertaterebrites |