Genus
Palaeodawsonocerina Kröger et Isakar, 2006
Taxon description
Kröger & Isakar, 2006
Diagnosis. Straight or slightly cyrtoconic, circular or subcir-cular shell, with prominent, narrowly spaced annulations, growth lines, and numerous subordinate filiform longitudinally raised lines, producing a fine reticulate pattern. Siphuncle central or slightly eccentric, slightly expanded, with achoanitic to very short orthochoanitic septal necks. Apex blunt, slightly cyrtoconic, annulated.
Selection of related publications
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., 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
List of species
1. Palaeodawsonocerina nicolletoides Kröger, 2013 | Katian
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Classification
| Organism group | Biota |
| Kingdom | Animalia |
| Phylum | Mollusca |
| Class | Cephalopoda |
| Subclass | Orthoceratia |
| Order | Orthocerida |
| Suborder | Orthoceratina |
| Family | Dawsonoceratidae |
| Genus | Dawsonoceras |
| Palaeodawsonocerina | |
| Species | nicolletoides |
| senckenbergi |
See also
References based on distribution
- Kröger, 2013 Kallholn quarry Katian
- Teichert, 1930c Saare Manor (Lyckholm) old quarry