Species
Protovirgularia pennata (Eichwald, 1854)
Taxon description
Uchman et al., 1998
Diagnosis: Protovirgularia with deeply impressed , carinate cross section. Chevron markings faint and densely spaced (modified after Seilacher & Seilacher, 1994).
Synonymy list
1854     Caulerpites pennatus. m. — Eichwald , pp. 60
1855     Caulerpites pennatus — Eichwald , fig. 1:1
1860     Caulerpites pennatus. m. — Eichwald , pp. 47, fig. 1:1
1957     Caulerpites pennatus Eichw. — Hecker , pp. 106, fig. 11:5
1965     Caulerpites pennatus Eichw. — Hecker , fig. 11:5
1998     Protovirgularia pennatus (Eichwald, 1860) — Uchman , pp. 164, fig. 67A
2011     Caulerpites pennatus  — Nara & Ikari , fig. 3A, B
2018     Protovirgularia cf. pennatus (Eichwald, 1860) — Hammersburg et al. , pp. 32, fig. Figure 6.5, Fig. 17.2–17.4
2021     Protovirgularia pennata (Eichwald, 1854a, 1854b) — Knaust , pp. 7
Selection of related publications
Hecker, R. F. 1957. Vedenie v paleoèkologiû. pp. 1-124.  Gosudarstvennoe naučno-tehnicheskoe izdatel'stvo literatury po geologii i ohrane nedr. 
Eichwald, E. 1860. Lethaea Rossica ou Paléontologie de la Russie. Premier volume. Ancienne Période en deux sections. pp. XIX+1–1657.  E. Schweizerbart.  DOI:10.5962/bhl.title.52391
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Classification
| Organism group | Biota | 
| Ichnofossil group | Ichnofossils | 
| Bioturbation trace fossils | |
| Genus | Protovirgularia | 
| Species | dichotoma | 
| longespicata | |
| mongraensis | |
| obliterata | |
| pennata | |
| rugosa | |
| triangularis | |
| unranked | nereitatum | 
References based on distribution