liik
Protovirgularia dichotoma McCoy, 1850
Taksoni kirjeldused
Hammersburg et al., 2018
Diagnosis.—Straight, bilobate trails with medial furrow and paired, convex, chevronlike, wedge-shaped projections oblique from furrow.
Sünonüümika
1850     Protovirgularia dichotoma — McCoy , lk. 272
1851     Protovirgularia dichotoma McCoy — McCoy , lk. 10, joon. Pl. 1. B. figs. 11 and 12
1853     Cladograpsus nereitarum — Richter , lk. 450, joon. 12:1,2
1855     ?Protovirgularia dichotoma M'Coy — Harkness , lk. 475
1855     Protovirgularia dichotoma McCoy — Murchison & Morris , lk. 413
1870     Protovirgularia Harknessi — Lapworth , lk. 53-54
1871     Tripiograpsus Nereitarum (Richter) — Richter , lk. 251-252, joon. 5:10-13
1879     Provirgularia(l) Nereitarum (Tripiograpsus Nereitam/mRicht.) — Gümbel , lk. 469, joon. 11, 12
1931     Protovirgularia nereitarum (Richter) — Hundt , lk. 35, 48
1958     Protovirgularia dichotoma M'Coy — Häntschel , lk. 84, joon. 5
Valik taksonit käsitlevast teaduskirjandusest
Uchman, A., Hanken, N.-M., Binns, R. 2005. Ordovician Bathyal Trace Fossils From Metasiliciclastics in Central Norway and Their Sedimentological and Paleogeographical Implications.  Ichnos   12,   2,   105-133. DOI:10.1080/10420940590914534
Klassifikatsioon
| organismirühm | Biota | 
| ihnorühm | Ichnofossils | 
| Bioturbation trace fossils | |
| perekond | Protovirgularia | 
| liik | dichotoma | 
| longespicata | |
| mongraensis | |
| obliterata | |
| pennata | |
| rugosa | |
| triangularis | |
| määratlemata | nereitatum | 
Levik kirjandusandmetel
- Uchman et al., 2005b Ordoviitsium