Genus
Striatocycloceras Kröger et Isakar, 2006
Taxon description
Kröger & Isakar, 2006
Diagnosis. Slender, circular or slightly compressed orthocones with asymmetrically curved septa and straight transverse or slightly oblique sutures. Sutures parallel, or nearly so, to the annulations. Annulations slightly irregularly spaced, with fine transverse ornament. Siphuncle eccentric, narrow, tubular or slightly expanded within the chambers. Septal necks orthochoanitic. Cameral and endosiphuncular deposits not known.
Selection of related publications
Kröger, B., Aubrechtová, M. 2018. Cephalopods from reef limestone of the Vasalemma Formation, northern Estonia (latest Sandbian, Upper Ordovician) and the establishment of a local warm-water fauna. Journal of Systematic Palaeontology 16, 10, 799-839. DOI:10.1080/14772019.2017.1347212
Kröger, B. 2013. The cephalopods of the Boda Limestone, Late Ordovician, of Dalarna, Sweden. European Journal of Taxonomy 41, 41, 1-110. DOI:10.5852/ejt.2013.41
Kröger, B., Ebbestad, J. O. R., Högström, A. E. S., Frisk, Ǻ. M. 2011. Mass concentration of Hirnantian cephalopods from the Siljan District, Sweden; taxonomy, palaeoecology and palaeobiogeographic relationships. Fossil Record 14, 1, 35-53. DOI:10.1002/mmng.201000014
Kröger, B. 2007. Concentrations of juvenile and small adult cephalopods in the Hirnantian cherts (Late Ordovician) of Porkuni, Estonia. Acta Palaeontologica Polonica 52, 3, 591–608.
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
Teichert, C. 1930. Die Cephalopoden-Fauna der Lyckholm-Stufe des Ostbaltikums. Paläontologische Zeitschrift 12, 3/4, 264-312. DOI:10.1007/BF03044452
Eichwald, E. 1857. Beitrag zur geographischen Verbreitung der fossilen Thiere Russlands. Alte Periode. (Fortsetzung. S. Bulletin 1856. N 4. pag. 555.). Klasse der Cephalopoden. Bulletin of the Moscow Society of Naturalists. Geological series 30, I, 192-219.
List of species
1. Striatocycloceras foerstei (Teichert, 1930) | Vormsi Stage
2. Striatocycloceras isbergi Kröger, 2013 | Vormsi Stage
3. Striatocycloceras obliquum (Eichwald, 1857) | Nabala Stage
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Classification
| Organism group | Biota |
| Kingdom | Animalia |
| Phylum | Mollusca |
| Class | Cephalopoda |
| Subclass | Orthoceratia |
| Order | Orthocerida |
| Suborder | Orthoceratina |
| Family | Orthoceratidae |
| Subfamily | Orthoceratinae |
| Genus | Ctenoceras |
| Orthoceras | |
| Orthocycloceras | |
| Striatocycloceras | |
| Species | foerstei |
| isbergi | |
| obliquum | |
| romingeri | |
| undulostriatum |
See also
References based on distribution
- Kröger, 2013 Osmundsberget Quarry Katian
- Kröger, 2013 Kallholn quarry Katian
- Kröger & Isakar, 2006 Paluküla Vormsi Stage
- Kröger et al., 2011a Osmundsberget Quarry Hirnantian
- Kröger & Isakar, 2006 Vasalemma Keila Stage
- Kröger & Isakar, 2006 Odulemma old quarry Nabala Stage
- Kröger & Isakar, 2006 Aluvere quarry Haljala Stage
- Kröger & Isakar, 2006 Oandu River outcrops Keila Stage
- Kröger & Isakar, 2006 Rägavere quarry Rakvere Stage
- Teichert, 1930c Saare Manor (Lyckholm) old quarry
- Teichert, 1930c Turvaste outcrop
- Eichwald, 1857a Kirna
- Kröger & Isakar, 2006 Odalema Nabala Stage