liik

Striatocycloceras foerstei (Teichert, 1930)

Taksoni kirjeldused

Kröger & Isakar, 2006

Diagnosis. Straight Striatocycloceras with circular cross-section and medium apical angle of approximately 8°. Seven irregularly spaced annulations at a distance that equates the corresponding shell diameter. Acute annulations slightly oblique toward growth direction with slight lateral sinus, with approximately 10 growth lines per annulation. One suture lineat every groove of the annulation, sutures and annulations run parallel. Siphuncle central. Short orthochoanitic septal necks.

Sünonüümika

1858 Orthoceras arcuolyratum — Schmidt , lk. 196

1916 Orthoceras arcuolyratum — Twenhofel , lk. 298

1930 Leurocycloceras foerstei n. sp — Teichert , lk. 278, joon. 6:13-16

1962 Leurocycloceras foerstei — Balashov , lk. 110, joon. 48:3

2006 Striatocycloceras foerstei (Teichert, 1930) — Kröger & Isakar , joon. 7q, 10h

2013 Striatocycloceras foerstei (Teichert, 1930) — Kröger , lk. 25

Valik taksonit käsitlevast teaduskirjandusest

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., 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

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