liik
Striatocycloceras obliquum (Eichwald, 1857)
Taksoni kirjeldused
Kröger & Isakar, 2006
Diagnosis. Straight, slightly compressed Striatocycloceras with high apical angle of approximately 10°. Six, irregularly spaced smooth annulations at a distance that equates the corresponding shell diameter in adult, with three annulations in juvenile specimens, respectively. Annulations slightly oblique toward growth direction with slight lateral sinus, with approximately 10 growth lines per annulation. One suture line at every groove of the annulation, annulations slightly oblique to ward sutures.
Sünonüümika
1857 Orth. obliquum — Eichwald , lk. 196
1860 Orthoceras obliquum — Eichwald , lk. 1209, joon. 49:7
1879 Orthoceras obliquum — Dewitz , lk. 34
1880 Orthoceras obliquum — Dewitz , lk. 170
1930 Orthoceras obliquum — Teichert , lk. 270, 278
2006 Striatocycloceras obliquum (Eichwald, 1860) — Kröger & Isakar , lk. 151, joon. 7K,O; 8D, 11
2013 Striatocycloceras obliquum — Kröger , lk. 25
Valik taksonit käsitlevast teaduskirjandusest
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
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.
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Klassifikatsioon
organismirühm | Biota |
riik | Animalia |
hõimkond | Mollusca |
klass | Cephalopoda |
alamklass | Orthoceratia |
selts | Orthocerida |
alamselts | Orthoceratina |
sugukond | Orthoceratidae |
alamsugukond | Orthoceratinae |
perekond | Striatocycloceras |
liik | foerstei |
isbergi | |
obliquum | |
romingeri | |
undulostriatum |
See also
Levik kirjandusandmetel
- Kröger & Isakar, 2006 Odulemma vana paemurd Nabala lade
- Eichwald, 1857a Kirna
- Kröger & Isakar, 2006 Odalema Nabala lade