Species
Plectochitina spongiosa (Achab, 1977)
Synonymy list
1977     Acyrochitina spongiosa sp.n. — Achab , pp. 2195-2197, fig. 1:1-9,12
1994     Plectochitina cf. spongiosa (Achab) — Nestor , pp. 76, fig. 6:1
Selection of related publications
Loydell, D. K., Nestor, V., Männik, P. 2010. Integrated biostratigraphy of the lower Silurian of the Kolka-54 core, Latvia.  Geological Magazine   147,   2,   253-280. DOI:10.1017/S0016756809990574
Loydell, D. K., Männik, P., Nestor, V. 2003. Integrated biostratigraphy of the lower Silurian of the Aizpute-41 core, Latvia.  Geological Magazine   140,   2,   205-229. DOI:10.1017/S0016756802007264
Nestor, V. 1994. Early Silurian chitinozoans of Estonia and North Latvia. pp. 1-163.  Estonian Academy Publishers. 
Occurrence in samples (CONOP) 
Ikla puurauk : 1 sample(s)
Asuküla puurauk : 1 sample(s)
Aizpute 41 puurauk : 2 sample(s)
Laeva 10 puurauk : 1 sample(s)
Laeva 18 puurauk : 7 sample(s)
Kaugatuma 509 puurauk : 4 sample(s)
Kolka 54 puurauk : 3 sample(s)
Nagli 106 puurauk : 5 sample(s)
Ohesaare puurauk : 1 sample(s)
Lõetsa 842 puurauk : 1 sample(s)
Lihula 211 puurauk : 1 sample(s)
Heimtali 422 puurauk : 8 sample(s)
Orjaku puurauk : 2 sample(s)
Rapla puurauk : 2 sample(s)
Põltsamaa H-163 puurauk : 7 sample(s)
Raikküla H-138 puurauk : 1 sample(s)
Pusku 2 puurauk : 1 sample(s)
Sõru 400 puurauk : 3 sample(s)
Taagepera puurauk : 2 sample(s)
Staicele 4 puurauk : 3 sample(s)
Sulustvere puurauk : 2 sample(s)
Tinuri 818 puurauk : 1 sample(s)
Viki puurauk : 2 sample(s)
Remte 3 puurauk : 5 sample(s)
Nitaure puurauk : 1 sample(s)
Juuru puurauk : 2 sample(s)
Nurme puurauk : 4 sample(s)
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Classification
| Organism group | Biota | 
| Kingdom | Animalia | 
| Class | Chitinozoa | 
| Order | Prosomatifera | 
| Family | Lagenochitindae | 
| Subfamily | Ancyrochitininae | 
| Genus | Plectochitina | 
| Species | magna | 
| nodifera | |
| obuti | |
| pachyderma | |
| ralphi | |
| spongiosa | 
References based on distribution
- Loydell et al., 2003 Aizpute 41 borehole Juuru Stage
- Nestor, V., 1994a Viki borehole Juuru Stage