 | Striatocycloceras obliquum (Eichwald, 1860) |
Taxon description
Kröger & Isakar, 2006
Diagnosis. Straight, slightly compressedStriatocycloceraswith high apical angle of approximately 10. Six, irregularlyspaced smooth annulations at a distance that equates the cor-responding shell diameter in adult, with three annulations injuvenile specimens, respectively. Annulations slightly obliquetoward growth direction with slight lateral sinus, with ap-proximately 10 growth lines per annulation. One suture lineat every groove of the annulation, annulations slightly obli-que toward sutures.
Type specimen data
PSM ,
Synonymy list
1860
Orthoceras obliquum — Eichwald, pp. 1209, fig. 49:7
1879
Orthoceras obliquum — Dewitz, pp. 34
1880
Orthoceras obliquum — Dewitz, pp. 170
1930
Orthoceras obliquum — Teichert, pp. 270, 278
2006
Striatocycloceras obliquum (Eichwald, 1860) — Kröger & Isakar, pp. 151, fig. 7K,O; 8D, 11
2013
Striatocycloceras obliquum (Teichert, 1930) — Kröger, pp. 25
Selection of related publications
Kröger, B. & Isakar, M. 2006.
Revision of annulated orthoceridan cephalopods of the Baltoscandic Ordovician. Fossil Record 9,
1, 137-163. DOI:10.1002/mmng.200600005
References based on distribution