perekond

Lacrimichnus Santos, Mayoral et Muñiz, 2003

Taksoni kirjeldused

Wisshak et al., 2019a

Attachment; substrate calcareous; tracemaker invertebrate

Buatois et al., 2017

Category of architectural design: 2.76. Single circular to tear-shaped attachment bioerosion traces.

Knaust, 2012a

Unbranched, cylindrical.

Santos et al., 2003

Diagnosis: Surface marks with oval to slightly ellipsoidal margin terminating on sharp end, with overall teardrop-shape. The margin clearly distinguished by colour of surrounding substrate, which is usually more heavily weathered or eroded, or by fairly deep, wide boring. Marks are smooth or exhibit light ornamentation consisting of discrete, shallow series of eccentric borings on interior.

Valik taksonit käsitlevast teaduskirjandusest
Semenov, N, K., Mirantsev, G. V. 2022. The oldest traces of possible Platyceratida (Mollusca, Gastropoda) on echinoderms from the Middle Ordovician of Baltoscandia (In Russian). Paleontologiâ i stratigrafiâ: sovremennoe sostoânie i puti razvitiâ. Materialy LXVIII sessii Paleontologičeskogo obŝestva pri RAN, posvâŝennoj 100- letiû so dnâ roždeniâ Aleksandra Ivanoviča Žamojdy, pp. 119-121. VSEGEI Publishing House.
Santos, A., Mayoral, E., Muñiz, F. 2004. Additional note to new trace fossils produced by etching molluscs from the Upper Neogene of the southwestern Iberian Peninsula. Acta Geologica Polonica 54, 1, 53-54.
Santos, A., Mayoral, E., Muñiz, F. 2003. New trace fossils produced by etching molluscs from the Upper Neogene of the southwestern Iberian Peninsula. Acta Geologica Polonica 53, 3, 181-188.