Species
Laufeldochitina toilaensis Nõlvak, Liang et Hints, 2019
Taxon description
Nõlvak et al., 2019
Diagnosis. Elongated species of Laufeldochitina with a claviform chamber, whole vesicle covered with longitudinal discontinuous striae (longitudinal ridges), sharp basal margin carries a very short thickened carina, flexure and shoulder inconspicuous.
Description. Its main characteristic is the presence of closely spaced linear striae (with height of 2–4 μm), which follow the outlines of the overall shape of the vesicle. The cylindrical neck comprises about 1/2 of the total length. The base is flat or rarely covered with concentric thickenings. The short carina at the margin of the flattened vesicles is often broken. The aperture is straight.
Type specimen data
Synonymy list
2002 Laufeldochitina stentor (Eisenack) — Sennikov et Obut, 2002 , fig. Pl. 1:10
2019 Laufeldochitina toilaensis n. sp. — Nõlvak et al.
Selection of related publications
Nõlvak, J., Liang, Y., Hints, O. 2019. Early diversification of Ordovician chitinozoans on Baltica: New data from the Jägala waterfall section, northern Estonia. Palaeogeography, Palaeoclimatology, Palaeoecology 525, 14-24. DOI:10.1016/j.palaeo.2019.04.002
Sennikov, N. V., Obut, O. T. 2002. Testing the chitinozoan zonal succession according to the graptolite zonal scale (Ordovician, Gorny Altai and Moscow syneclise). Geologia i geofizika 5, 51-63.
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Classification
| Organism group | Biota |
| Kingdom | Animalia |
| Class | Chitinozoa |
| Order | Prosomatifera |
| Family | Conochitinidae |
| Subfamily | Tanuchitininae |
| Genus | Laufeldochitina |
| Species | stentor |
| striata | |
| toilaensis |
References based on distribution
- Nõlvak et al., 2019 Jägala waterfall Volkhov Stage
- Sennikov & Obut, 2002 Lezhskaya 1 borehole
- Nõlvak et al., 2019 Uuga Cliff 1, Parki peninsula Volkhov Stage
- Nõlvak et al., 2019 Kaldase 60 borehole Volkhov Stage