1837
Prionotus folium — Hisinger
1897
Cephalograptus folium Hisinger — Perner, pp. 12, fig. 10:14
1911
Petalograptus folium (Hisinger) — Elles & Wood, pp. 282, fig. 32:8a-e; texy fig. 195
1941
Petalolithus folium (Hisinger, 1837) — Bouček & Přibyl, pp. 7, fig. 1:6-7
1952
Petalograptus (Petalolithus) folium — Münch, pp. 64, fig. 7:5a-b
1967
Petalograptus aff. foilum (Hisinger), 1837 — Obut & Sobolevskaya, pp. 67
1975
Petalograptus foilum (Hisinger, 1837) — Bjerreskov, pp. 35, fig. 12c
1979
Petalograptus folium (Hisinger, 1837) — Paškevičius , pp. 135-136, fig. 5:10; 21:13
1982
Petalograptus folium (Hisinger, 1837) — Lenz, pp. 13,14, fig. 2:C,D;12D,E
1996
Petalograptus folium (Hisinger, 1837) — Koren & Rickards, pp. 50,53, fig. 8:4,5; text fig. 10A,B
1998
Petalolithus folium (Hisinger) — Štorch, pp. 221, fig. 4:1,4,6,8-10; text fig. 2-E
2011
Petalolithus folium (Hisinger, 1837) — Snelling & Zalasiewicz, pp. 345, fig. 2A
2014
Petalolithus folium — Maletz et al., fig. 1N