taxonID	namePublishedIn	acceptedNameUsageID	parentNameUsageID	originalNameUsageID	kingdom	phylum	class	order	family	genus	taxonRank	scientificName	scientificNameAuthorship	canonicalName	verbatimScientificName	basionymAuthors	basionymYear	combinationAuthors	combinationYear	taxonomicStatus	nomenclaturalStatus	references	taxonRemarks
03ED0C5EFFD1FF9CFD97429A7864F83B.taxon					Animalia	Mollusca	Cephalopoda	Tarphyceratida			order	Tarphyceratida Flower 1950	Flower 1950	Tarphyceratida	Tarphyceratida Flower, 1950			Flower	1950			https://treatment.plazi.org/id/03ED0C5EFFD1FF9CFD97429A7864F83B	
03ED0C5EFFDEFF93FDEF46057E48F979.taxon					Animalia	Mollusca	Cephalopoda	Tarphyceratida	Trocholitidae		family	Trocholitidae Chapman 1857	Chapman 1857	Trocholitidae	Trocholitidae Chapman, 1857			Chapman	1857			https://treatment.plazi.org/id/03ED0C5EFFDEFF93FDEF46057E48F979	
03ED0C5EFFDEFF91FD8641B97985FC4D.taxon					Animalia	Mollusca	Cephalopoda	Tarphyceratida	Trocholitidae	Discoceras	genus	Discoceras Barrande 1867	Barrande 1867	Discoceras	Discoceras Barrande, 1867			Barrande	1867			https://treatment.plazi.org/id/03ED0C5EFFDEFF91FD8641B97985FC4D	
03ED0C5EFFDCFF95FDC744EF7CDAFA00.taxon					Animalia	Mollusca	Cephalopoda	Tarphyceratida	Trocholitidae	Discoceras	species	Discoceras antiquissimum (Eichwald 1842)	(Eichwald 1842)	Discoceras antiquissimum	Discoceras antiquissimum (Eichwald, 1842)	Eichwald	1842					https://treatment.plazi.org/id/03ED0C5EFFDCFF95FDC744EF7CDAFA00	
03ED0C5EFFDCFF95FDC744EF7CDAFA00.taxon.syn1	Eichwald E. 1842. Neuer Beitrag zur Geognosie Esthlands und Finlands. In: Eichwald E (ed.) Die Urwelt Russlands durch Abbildungen erlaeutert: 1-138. Akademie der Wissenschaften, St Petersburg.	03ED0C5EFFDCFF95FDC744EF7CDAFA00.taxon			Animalia	Mollusca	Cephalopoda	Clymeniida	Clymeniidae	Clymenia	species	Clymenia antiquissima Eichwald 1842	Eichwald 1842	Clymenia antiquissima	Clymenia antiquissima Eichwald, 1842: 33			Eichwald	1842	synonym		https://treatment.plazi.org/id/03ED0C5EFFDCFF95FDC744EF7CDAFA00	
03ED0C5EFFDCFF95FDC744EF7CDAFA00.taxon.syn2	Lossen C. 1860. Uber einige Lituiten. Zeitschrift der Deutschen geologischen Gesellschaft 12: 15-28. Available from https://www.biodiversitylibrary.org/page/34776055 [accessed 5 Nov. 2025].	03ED0C5EFFDCFF95FDC744EF7CDAFA00.taxon			Animalia	Mollusca	Cephalopoda	Astroviida	Lituitidae	Lituites	species	Lituites trapezoidalis Lossen 1860	Lossen 1860	Lituites trapezoidalis	Lituites trapezoidalis Lossen, 1860: 25			Lossen	1860	synonym		https://treatment.plazi.org/id/03ED0C5EFFDCFF95FDC744EF7CDAFA00	
03ED0C5EFFDCFF95FDC744EF7CDAFA00.taxon.syn3		03ED0C5EFFDCFF95FDC744EF7CDAFA00.taxon			Animalia	Mollusca	Cephalopoda	Astroviida	Lituitidae	Lituites	subSpecies	Lituites cornu subsp. arietites Eichwald 1860	Eichwald 1860	Lituites cornu subsp. arietites	Lituites cornu arietites			Eichwald	1860	synonym		https://treatment.plazi.org/id/03ED0C5EFFDCFF95FDC744EF7CDAFA00	
03ED0C5EFFDCFF95FDC744EF7CDAFA00.taxon.syn4		03ED0C5EFFDCFF95FDC744EF7CDAFA00.taxon			Animalia	Mollusca	Cephalopoda	Astroviida	Lituitidae	Lituites	species	Lituites antiquissimus Roemer 1861	Roemer 1861	Lituites antiquissimus	Lituites antiquissimus			Roemer	1861	synonym		https://treatment.plazi.org/id/03ED0C5EFFDCFF95FDC744EF7CDAFA00	
03ED0C5EFFDCFF95FDC744EF7CDAFA00.taxon.syn5		03ED0C5EFFDCFF95FDC744EF7CDAFA00.taxon			Animalia	Mollusca	Cephalopoda	Tarphyceratida	Trocholitidae	Trocholites	species	Trocholites antiquissimus (Eichwald 1842)	(Eichwald 1842)	Trocholites antiquissimus	Trocholites antiquissimus	Eichwald	1842			synonym		https://treatment.plazi.org/id/03ED0C5EFFDCFF95FDC744EF7CDAFA00	
03ED0C5EFFD8FF8AFD9141117829F821.taxon					Animalia	Mollusca	Cephalopoda	Tarphyceratida	Trocholitidae	Discoceras	species	Discoceras saemanni (Hyatt 1894)	(Hyatt 1894)	Discoceras saemanni	Discoceras saemanni (Hyatt, 1894)	Hyatt	1894					https://treatment.plazi.org/id/03ED0C5EFFD8FF8AFD9141117829F821	
03ED0C5EFFD8FF8AFD9141117829F821.taxon.syn1	Hyatt A. 1894. Phylogeny of an acquired characteristic. Proceedings of the American Philosophical Society 32: 349-647. https://doi.org/10.5962/bhl.title.59826	03ED0C5EFFD8FF8AFD9141117829F821.taxon			Animalia	Mollusca	Cephalopoda	Tarphyceratida	Trocholitidae	Schroederoceras	species	Schroederoceras saemanni Hyatt 1894	Hyatt 1894	Schroederoceras saemanni	Schroederoceras Saemanni Hyatt, 1894: 462			Hyatt	1894	synonym		https://treatment.plazi.org/id/03ED0C5EFFD8FF8AFD9141117829F821	
03ED0C5EFFD8FF8AFD9141117829F821.taxon.syn2	Saemann L. 1853. Ueber die Nautiliden. Palaeontographica 3: 121-167.	03ED0C5EFFD8FF8AFD9141117829F821.taxon			Animalia	Mollusca	Cephalopoda	Astroviida	Lituitidae	Lituites	species	Lituites angulatus Saemann 1853	Saemann 1853	Lituites angulatus	Lituites angulatus Saemann, 1853: 166			Saemann	1853	synonym		https://treatment.plazi.org/id/03ED0C5EFFD8FF8AFD9141117829F821	
03ED0C5EFFD8FF8AFD9141117829F821.taxon.syn3	Foord A. H. 1891. Catalogue of the Fossil Cephalopoda in the British Museum, part II. Containing the remainder of the suborder Nautiloidea, consisting of the families Lituitidae, Trochoceratidae, and Nautilidae, with a supplement. Order of the Trustees, London. https://doi.org/10.5962/bhl.title.112429	03ED0C5EFFD8FF8AFD9141117829F821.taxon			Animalia	Mollusca	Cephalopoda	Tarphyceratida	Trocholitidae	Trocholites	species	Trocholites undosus Foord 1891	Foord 1891	Trocholites undosus	Trocholites undosus Foord, 1891: 45			Foord	1891	synonym		https://treatment.plazi.org/id/03ED0C5EFFD8FF8AFD9141117829F821	
03ED0C5EFFD8FF8AFD9141117829F821.taxon.syn4	Strand T. 1933. The Upper Ordovician cephalopods of the Oslo area. Norsk geologisk Tidsskrift 14: 1-117.	03ED0C5EFFD8FF8AFD9141117829F821.taxon			Animalia	Mollusca	Cephalopoda	Tarphyceratida	Trocholitidae	Discoceras	species	Discoceras hyatti Strand 1933	Strand 1933	Discoceras hyatti	Discoceras hyatti Strand, 1933: 38			Strand	1933	synonym		https://treatment.plazi.org/id/03ED0C5EFFD8FF8AFD9141117829F821	
03ED0C5EFFD8FF8AFD9141117829F821.taxon.syn5		03ED0C5EFFD8FF8AFD9141117829F821.taxon			Animalia	Mollusca	Cephalopoda	Tarphyceratida	Trocholitidae	Discoceras	species	Discoceras undetermined		Discoceras undetermined	Discoceras sp.					synonym		https://treatment.plazi.org/id/03ED0C5EFFD8FF8AFD9141117829F821	
03ED0C5EFFD8FF8AFD9141117829F821.taxon.syn6		03ED0C5EFFD8FF8AFD9141117829F821.taxon			Animalia	Mollusca	Cephalopoda	Tarphyceratida	Trocholitidae	Schroederoceras	species	Schroederoceras hyatti (Strand 1933)	(Strand 1933)	Schroederoceras hyatti	Schroederoceras hyatti	Strand	1933			synonym		https://treatment.plazi.org/id/03ED0C5EFFD8FF8AFD9141117829F821	
03ED0C5EFFD8FF8AFD9141117829F821.taxon.syn7		03ED0C5EFFD8FF8AFD9141117829F821.taxon			Animalia	Mollusca	Cephalopoda	Tarphyceratida	Tarphyceratidae	Rectanguloceras	species	Rectanguloceras undetermined		Rectanguloceras undetermined	Rectanguloceras sp.					synonym		https://treatment.plazi.org/id/03ED0C5EFFD8FF8AFD9141117829F821	
03ED0C5EFFC4FF88FD9646047829FB12.taxon					Animalia	Mollusca	Cephalopoda	Tarphyceratida	Trocholitidae	Discoceras	species	Discoceras ievense (Balashov 1953)	(Balashov 1953)	Discoceras ievense	Discoceras ievense (Balashov, 1953)	Balashov	1953					https://treatment.plazi.org/id/03ED0C5EFFC4FF88FD9646047829FB12	
03ED0C5EFFC4FF88FD9646047829FB12.taxon.syn1	Balashov Z. G. 1953. Stratigraphic distribution of nautiloids during the pre-Baltic Ordovician. Trudy vsjesojuznogo neftjanogo nauchno-issledovatelskogo geologo-razvedochnogo Instituta (VNIGRI) 78: 197-216.	03ED0C5EFFC4FF88FD9646047829FB12.taxon			Animalia	Mollusca	Cephalopoda	Tarphyceratida	Trocholitidae	Schroederoceras	species	Schroederoceras ievense Balashov 1953	Balashov 1953	Schroederoceras ievense	Schroederoceras ievense Balashov, 1953: 259			Balashov	1953	synonym		https://treatment.plazi.org/id/03ED0C5EFFC4FF88FD9646047829FB12	
03ED0C5EFFC4FF88FD9646047829FB12.taxon.syn2		03ED0C5EFFC4FF88FD9646047829FB12.taxon			Animalia	Mollusca	Cephalopoda	Tarphyceratida	Trocholitidae	Discoceras	species	Discoceras ievesense (Balaschov 1953)	(Balaschov 1953)	Discoceras ievesense	Discoceras ievesense	Balaschov	1953			synonym		https://treatment.plazi.org/id/03ED0C5EFFC4FF88FD9646047829FB12	
03ED0C5EFFC4FF88FD9646047829FB12.taxon.syn3		03ED0C5EFFC4FF88FD9646047829FB12.taxon			Animalia	Mollusca	Cephalopoda	Tarphyceratida	Tarphyceratidae	Rectanguloceras	species	Rectanguloceras ievense (Balashov 1953)	(Balashov 1953)	Rectanguloceras ievense	Rectanguloceras ievense	Balashov	1953			synonym		https://treatment.plazi.org/id/03ED0C5EFFC4FF88FD9646047829FB12	
03ED0C5EFFC5FF8EFDE942057E69FE0A.taxon					Animalia	Mollusca	Cephalopoda	Tarphyceratida	Trocholitidae	Discoceras	species	Discoceras damesii (Schroeder 1891)	(Schroeder 1891)	Discoceras damesii	Discoceras damesii (Schröder, 1891)	Schroeder	1891					https://treatment.plazi.org/id/03ED0C5EFFC5FF8EFDE942057E69FE0A	
03ED0C5EFFC5FF8EFDE942057E69FE0A.taxon.syn1	Schroder H. 1891. Untersuchungen uber silurische Cephalopoden. Palaeontologische Abhandlungen, Neue Folge 1: 1-48. https://doi.org/10.5962/bhl.title.25535	03ED0C5EFFC5FF8EFDE942057E69FE0A.taxon			Animalia	Mollusca	Cephalopoda	Tarphyceratida	Trocholitidae	Trocholites	species	Trocholites Damesii Schroder 1891	Schroder 1891	Trocholites Damesii	Trocholites Damesii Schröder, 1891: 158			Schroder	1891	synonym		https://treatment.plazi.org/id/03ED0C5EFFC5FF8EFDE942057E69FE0A	
03ED0C5EFFC5FF8EFDE942057E69FE0A.taxon.syn2	Hyatt A. 1894. Phylogeny of an acquired characteristic. Proceedings of the American Philosophical Society 32: 349-647. https://doi.org/10.5962/bhl.title.59826	03ED0C5EFFC5FF8EFDE942057E69FE0A.taxon			Animalia	Mollusca	Cephalopoda	Tarphyceratida	Trocholitidae	Schroederoceras	species	Schroederoceras Damesi Hyatt 1894	Hyatt 1894	Schroederoceras Damesi	Schroederoceras Damesi – Hyatt 1894: 469 – 470			Hyatt	1894	synonym		https://treatment.plazi.org/id/03ED0C5EFFC5FF8EFDE942057E69FE0A	
03ED0C5EFFC5FF8EFDE942057E69FE0A.taxon.syn3		03ED0C5EFFC5FF8EFDE942057E69FE0A.taxon			Animalia	Mollusca	Cephalopoda	Tarphyceratida	Trocholitidae	Discoceras	species	Discoceras damesi spec (Eichwald 1842	spec (Eichwald 1842	Discoceras damesi	Discoceras damesi			spec (Eichwald	1842	synonym		https://treatment.plazi.org/id/03ED0C5EFFC5FF8EFDE942057E69FE0A	
03ED0C5EFFC5FF8EFDE942057E69FE0A.taxon.syn4		03ED0C5EFFC5FF8EFDE942057E69FE0A.taxon			Animalia	Mollusca	Cephalopoda	Tarphyceratida	Trocholitidae	Trocholites	species	Trocholites damesii (Schröder 1891)	(Schröder 1891)	Trocholites damesii	Trocholites damesii	Schröder	1891			synonym		https://treatment.plazi.org/id/03ED0C5EFFC5FF8EFDE942057E69FE0A	
03ED0C5EFFC3FF8CFDEE45287856FBA3.taxon					Animalia	Mollusca	Cephalopoda	Tarphyceratida	Trocholitidae	Discoceras	species	Discoceras paopense Kroger 2025	Kroger 2025	Discoceras paopense	Discoceras cf. paopense Kröger, 2025			Kroger	2025			https://treatment.plazi.org/id/03ED0C5EFFC3FF8CFDEE45287856FBA3	
03ED0C5EFFC1FF83FDCA4371796DFC2A.taxon					Animalia	Mollusca	Cephalopoda	Tarphyceratida	Trocholitidae	Discoceras	species	Discoceras gubkovense Balashov 1953	Balashov 1953	Discoceras gubkovense	Discoceras cf. gubkovense Balashov, 1953			Balashov	1953			https://treatment.plazi.org/id/03ED0C5EFFC1FF83FDCA4371796DFC2A	
03ED0C5EFFCFFF85FD9146057826FB58.taxon					Animalia	Mollusca	Cephalopoda	Tarphyceratida	Trocholitidae	Discoceras	species	Discoceras bandonis Remele 1890	Remele 1890	Discoceras bandonis	Discoceras bandonis Remelé, 1890			Remele	1890			https://treatment.plazi.org/id/03ED0C5EFFCFFF85FD9146057826FB58	
03ED0C5EFFCFFF85FD9146057826FB58.taxon.syn1	Schroder H. 1891. Untersuchungen uber silurische Cephalopoden. Palaeontologische Abhandlungen, Neue Folge 1: 1-48. https://doi.org/10.5962/bhl.title.25535	03ED0C5EFFCFFF85FD9146057826FB58.taxon			Animalia	Mollusca	Cephalopoda	Tarphyceratida	Trocholitidae	Discoceras	species	Discoceras Bandonis Schroder 1891	Schroder 1891	Discoceras Bandonis	Discoceras Bandonis – Schröder 1891: 24 – 25			Schroder	1891	synonym		https://treatment.plazi.org/id/03ED0C5EFFCFFF85FD9146057826FB58	
03ED0C5EFFCFFF85FD9146057826FB58.taxon.syn2		03ED0C5EFFCFFF85FD9146057826FB58.taxon			Animalia	Mollusca	Cephalopoda	Tarphyceratida	Tarphyceratidae	Sweetoceras	species	Sweetoceras bandonis (Remele 1890)	(Remele 1890)	Sweetoceras bandonis	Sweetoceras bandonis	Remele	1890			synonym		https://treatment.plazi.org/id/03ED0C5EFFCFFF85FD9146057826FB58	
03ED0C5EFFCFFF85FD9146057826FB58.taxon.syn3		03ED0C5EFFCFFF85FD9146057826FB58.taxon			Animalia	Mollusca	Cephalopoda	Tarphyceratida	Trocholitidae	Schroederoceras	species	Schroederoceras bandonis (Remele 1890)	(Remele 1890)	Schroederoceras bandonis	Schroederoceras bandonis	Remele	1890			synonym		https://treatment.plazi.org/id/03ED0C5EFFCFFF85FD9146057826FB58	
03ED0C5EFFC8FFB9FDC943D9790BFEA7.taxon					Animalia	Mollusca	Cephalopoda	Tarphyceratida	Trocholitidae	Discoceras	species	Discoceras danckelmanni (Remele 1880)	(Remele 1880)	Discoceras danckelmanni	Discoceras danckelmanni (Remelé, 1880)	Remele	1880					https://treatment.plazi.org/id/03ED0C5EFFC8FFB9FDC943D9790BFEA7	
03ED0C5EFFC8FFB9FDC943D9790BFEA7.taxon.syn1	Remele A. 1880. Ueber einige neue oder seltene Versteinerungen aus silurischen Diluvialgeschieben der Gegend von Eberswalde. In: Festschrift fur die Funfzigjahrige Jubelfeier der Forstakademie Eberswalde: 179-252. Julius Springer, Berlin.	03ED0C5EFFC8FFB9FDC943D9790BFEA7.taxon			Animalia	Mollusca	Cephalopoda	Astroviida	Lituitidae	Lituites	species	Lituites Danckelmanni Remele 1880	Remele 1880	Lituites Danckelmanni	Lituites Danckelmanni Remelé, 1880: 241			Remele	1880	synonym		https://treatment.plazi.org/id/03ED0C5EFFC8FFB9FDC943D9790BFEA7	
03ED0C5EFFC8FFB9FDC943D9790BFEA7.taxon.syn2		03ED0C5EFFC8FFB9FDC943D9790BFEA7.taxon			Animalia	Mollusca	Cephalopoda	Astroviida	Lituitidae	Lituites	species	Lituites (Trocholites) cornuarietis		Lituites (Trocholites) cornuarietis	Lituites (Trocholites) cornuarietis					synonym		https://treatment.plazi.org/id/03ED0C5EFFC8FFB9FDC943D9790BFEA7	
03ED0C5EFFC8FFB9FDC943D9790BFEA7.taxon.syn3	Remele A. 1890. Untersuchungen uber die versteinerungsfuhrenden Diluvialgeschiebe des norddeutschen Flachlandes mit besonderer Berucksichtigung der Mark Brandenburg. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-662-32621-3	03ED0C5EFFC8FFB9FDC943D9790BFEA7.taxon			Animalia	Mollusca	Cephalopoda	Tarphyceratida	Trocholitidae	Discoceras	species	Discoceras (Lituites) Danckelmanni Remele 1890	Remele 1890	Discoceras (Lituites) Danckelmanni	Discoceras (Lituites) Danckelmanni – Remelé 1890: 32			Remele	1890	synonym		https://treatment.plazi.org/id/03ED0C5EFFC8FFB9FDC943D9790BFEA7	
03ED0C5EFFC8FFB9FDC943D9790BFEA7.taxon.syn4	Schroder H. 1891. Untersuchungen uber silurische Cephalopoden. Palaeontologische Abhandlungen, Neue Folge 1: 1-48. https://doi.org/10.5962/bhl.title.25535	03ED0C5EFFC8FFB9FDC943D9790BFEA7.taxon			Animalia	Mollusca	Cephalopoda	Tarphyceratida	Trocholitidae	Discoceras	species	Discoceras Danckelmanni Schroder 1891	Schroder 1891	Discoceras Danckelmanni	Discoceras Danckelmanni – Schröder 1891: 25			Schroder	1891	synonym		https://treatment.plazi.org/id/03ED0C5EFFC8FFB9FDC943D9790BFEA7	
03ED0C5EFFC8FFB9FDC943D9790BFEA7.taxon.syn5		03ED0C5EFFC8FFB9FDC943D9790BFEA7.taxon			Animalia	Mollusca	Cephalopoda	Tarphyceratida	Trocholitidae	Schroederoceras	species	Schroederoceras danckelmanni (Remele 1880)	(Remele 1880)	Schroederoceras danckelmanni	Schroederoceras danckelmanni	Remele	1880			synonym		https://treatment.plazi.org/id/03ED0C5EFFC8FFB9FDC943D9790BFEA7	
03ED0C5EFFC8FFB9FDC943D9790BFEA7.taxon.syn6		03ED0C5EFFC8FFB9FDC943D9790BFEA7.taxon			Animalia	Mollusca	Cephalopoda	Tarphyceratida	Tarphyceratidae	Rectanguloceras	species	Rectanguloceras danckelmanni (Remele 1880)	(Remele 1880)	Rectanguloceras danckelmanni	Rectanguloceras danckelmanni	Remele	1880			synonym		https://treatment.plazi.org/id/03ED0C5EFFC8FFB9FDC943D9790BFEA7	
03ED0C5EFFC8FFB9FDC943D9790BFEA7.taxon.syn7		03ED0C5EFFC8FFB9FDC943D9790BFEA7.taxon			Animalia	Mollusca	Cephalopoda	Tarphyceratida	Trocholitidae	Schroederoceras	species	Schroederoceras danckelmani (Remele 1880)	(Remele 1880)	Schroederoceras danckelmani	Schroederoceras danckelmani	Remele	1880			synonym		https://treatment.plazi.org/id/03ED0C5EFFC8FFB9FDC943D9790BFEA7	
03ED0C5EFFF4FFBFFDBD4674793CFE2F.taxon	Aubrechtová, Martina, Korn, Dieter, Kröger, Björn (2026): The genus Discoceras (Tarphyceratida, Cephalopoda; Ordovician) from Estonia and glacial erratics in north-central Europe. European Journal of Taxonomy 1036: 1-54, DOI: 10.5852/ejt.2026.1036.3173, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3173/14109				Animalia	Mollusca	Cephalopoda	Tarphyceratida	Trocholitidae	Discoceras	species	Discoceras aseriense Aubrechtová, Korn, and Kröger 2026	Aubrechtová, Korn, and Kröger 2026	Discoceras aseriense	Discoceras aseriense			Aubrechtová & Korn & Kröger	2026		spec. nov.	https://treatment.plazi.org/id/03ED0C5EFFF4FFBFFDBD4674793CFE2F	
03ED0C5EFFF2FFBDFDEF450D7E04FEA6.taxon	Aubrechtová, Martina, Korn, Dieter, Kröger, Björn (2026): The genus Discoceras (Tarphyceratida, Cephalopoda; Ordovician) from Estonia and glacial erratics in north-central Europe. European Journal of Taxonomy 1036: 1-54, DOI: 10.5852/ejt.2026.1036.3173, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3173/14109				Animalia	Mollusca	Cephalopoda	Tarphyceratida	Trocholitidae	Discoceras	species	Discoceras brandenburgense Aubrechtová, Korn, and Kröger 2026	Aubrechtová, Korn, and Kröger 2026	Discoceras brandenburgense	Discoceras brandenburgense			Aubrechtová & Korn & Kröger	2026		spec. nov.	https://treatment.plazi.org/id/03ED0C5EFFF2FFBDFDEF450D7E04FEA6	
03ED0C5EFFF2FFBDFDEF450D7E04FEA6.taxon.syn1		03ED0C5EFFF2FFBDFDEF450D7E04FEA6.taxon			Animalia	Mollusca	Cephalopoda	Tarphyceratida	Tarphyceratidae	Rectanguloceras	species	Rectanguloceras roemeri (Kroger 2025)	(Kroger 2025)	Rectanguloceras roemeri	Rectanguloceras cf. roemeri	Kroger	2025			synonym		https://treatment.plazi.org/id/03ED0C5EFFF2FFBDFDEF450D7E04FEA6	
03ED0C5EFFF2FFBDFDEF450D7E04FEA6.taxon.syn2		03ED0C5EFFF2FFBDFDEF450D7E04FEA6.taxon			Animalia	Mollusca	Cephalopoda	Tarphyceratida	Trocholitidae	Discoceras	species	Discoceras roemeri (Kroger 2025)	(Kroger 2025)	Discoceras roemeri	Discoceras roemeri	Kroger	2025			synonym		https://treatment.plazi.org/id/03ED0C5EFFF2FFBDFDEF450D7E04FEA6	
03ED0C5EFFF0FFBCFDB1467B784CFAF8.taxon	Aubrechtová, Martina, Korn, Dieter, Kröger, Björn (2026): The genus Discoceras (Tarphyceratida, Cephalopoda; Ordovician) from Estonia and glacial erratics in north-central Europe. European Journal of Taxonomy 1036: 1-54, DOI: 10.5852/ejt.2026.1036.3173, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3173/14109				Animalia	Mollusca	Cephalopoda	Tarphyceratida	Trocholitidae	Discoceras	species	Discoceras angustum Aubrechtová, Korn, and Kröger 2026	Aubrechtová, Korn, and Kröger 2026	Discoceras angustum	Discoceras angustum			Aubrechtová & Korn & Kröger	2026		spec. nov.	https://treatment.plazi.org/id/03ED0C5EFFF0FFBCFDB1467B784CFAF8	
03ED0C5EFFF1FFB2FDBB423F79E6FC54.taxon	Aubrechtová, Martina, Korn, Dieter, Kröger, Björn (2026): The genus Discoceras (Tarphyceratida, Cephalopoda; Ordovician) from Estonia and glacial erratics in north-central Europe. European Journal of Taxonomy 1036: 1-54, DOI: 10.5852/ejt.2026.1036.3173, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3173/14109				Animalia	Mollusca	Cephalopoda	Tarphyceratida	Trocholitidae	Discoceras	species	Discoceras circulare Aubrechtová, Korn, and Kröger 2026	Aubrechtová, Korn, and Kröger 2026	Discoceras circulare	Discoceras circulare			Aubrechtová & Korn & Kröger	2026		spec. nov.	https://treatment.plazi.org/id/03ED0C5EFFF1FFB2FDBB423F79E6FC54	
03ED0C5EFFFCFFB0FDAB46057E04FA53.taxon	Aubrechtová, Martina, Korn, Dieter, Kröger, Björn (2026): The genus Discoceras (Tarphyceratida, Cephalopoda; Ordovician) from Estonia and glacial erratics in north-central Europe. European Journal of Taxonomy 1036: 1-54, DOI: 10.5852/ejt.2026.1036.3173, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3173/14109				Animalia	Mollusca	Cephalopoda	Tarphyceratida	Trocholitidae	Discoceras	species	Discoceras sovaki Aubrechtová, Korn, and Kröger 2026	Aubrechtová, Korn, and Kröger 2026	Discoceras sovaki	Discoceras sovaki			Aubrechtová & Korn & Kröger	2026		spec. nov.	https://treatment.plazi.org/id/03ED0C5EFFFCFFB0FDAB46057E04FA53	
03ED0C5EFFFCFFB0FDAB46057E04FA53.taxon.syn1		03ED0C5EFFFCFFB0FDAB46057E04FA53.taxon			Animalia	Mollusca	Cephalopoda	Tarphyceratida	Tarphyceratidae	Rectanguloceras	species	Rectanguloceras (Discoceras) danckelmanni (Remele 1880)	(Remele 1880)	Rectanguloceras (Discoceras) danckelmanni	Rectanguloceras (Discoceras) danckelmanni	Remele	1880			synonym		https://treatment.plazi.org/id/03ED0C5EFFFCFFB0FDAB46057E04FA53	
03ED0C5EFFFDFFB6FDA442C07E04FE2F.taxon	Aubrechtová, Martina, Korn, Dieter, Kröger, Björn (2026): The genus Discoceras (Tarphyceratida, Cephalopoda; Ordovician) from Estonia and glacial erratics in north-central Europe. European Journal of Taxonomy 1036: 1-54, DOI: 10.5852/ejt.2026.1036.3173, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3173/14109				Animalia	Mollusca	Cephalopoda	Tarphyceratida	Trocholitidae	Discoceras	species	Discoceras alienum Aubrechtová, Korn, and Kröger 2026	Aubrechtová, Korn, and Kröger 2026	Discoceras alienum	Discoceras alienum			Aubrechtová & Korn & Kröger	2026		spec. nov.	https://treatment.plazi.org/id/03ED0C5EFFFDFFB6FDA442C07E04FE2F	
03ED0C5EFFFBFFB5FDB5450D7E60F865.taxon	Aubrechtová, Martina, Korn, Dieter, Kröger, Björn (2026): The genus Discoceras (Tarphyceratida, Cephalopoda; Ordovician) from Estonia and glacial erratics in north-central Europe. European Journal of Taxonomy 1036: 1-54, DOI: 10.5852/ejt.2026.1036.3173, URL: https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/3173/14109				Animalia	Mollusca	Cephalopoda	Tarphyceratida	Trocholitidae	Discoceras	species	Discoceras polonicum Aubrechtová, Korn, and Kröger 2026	Aubrechtová, Korn, and Kröger 2026	Discoceras polonicum	Discoceras polonicum			Aubrechtová & Korn & Kröger	2026		spec. nov.	https://treatment.plazi.org/id/03ED0C5EFFFBFFB5FDB5450D7E60F865	
