@prefix rdf: . @prefix rdfs: . @prefix bibo: . @prefix cito: . @prefix dc: . @prefix dwc: . @prefix dwcFP: . @prefix fabio: . @prefix trt: . @prefix xlink: . # Warning: Not adding 'trt:citesTaxonName ' due to issues with rank ; cito:cites ; dc:creator "Koppka, Jens" ; dc:title "Actinostreon gregareum J. Sowerby 1815, n. sp." ; trt:augmentsTaxonConcept ; trt:citesTaxonName , , , , , , , , , , , , , , , , , , , , , ; trt:deprecates , , , , , , , , , , , , , ; trt:publishedIn ; a trt:Treatment . bibo:endPage "117" ; bibo:issue "1" ; bibo:journal "Zootaxa" ; bibo:startPage "1" ; bibo:volume "3927" ; dc:creator "Koppka, Jens" ; dc:date "2015" ; dc:title "Revision of the Bivalvia from the Upper Jurassic Reuchenette Formation, Northwest Switzerland — Ostreoidea" ; fabio:hasPart ; a fabio:JournalArticle . dwc:authority "J. Sowerby, 1815" ; dwc:authorityName "J. Sowerby" ; dwc:authorityYear "1815" ; dwc:class "Bivalvia" ; dwc:family "Ostreidae" ; dwc:genus "Actinostreon" ; dwc:kingdom "Animalia" ; dwc:order "Ostreoida" ; dwc:phylum "Mollusca" ; dwc:rank "species" ; dwc:scientificNameAuthorship "J. Sowerby, 1815" ; dwc:species "gregareum" ; trt:hasTaxonName ; a dwcFP:TaxonConcept . dwc:authority "Etallon, 1862" ; dwc:authorityName "Etallon" ; dwc:authorityYear "1862" ; dwc:class "Bivalvia" ; dwc:family "Ostreidae" ; dwc:genus "Alectryonia" ; dwc:kingdom "Animalia" ; dwc:order "Ostreida" ; dwc:phylum "Mollusca" ; dwc:rank "species" ; dwc:scientificNameAuthorship "Etallon, 1862" ; dwc:species "vallata" ; trt:hasTaxonName ; a dwcFP:TaxonConcept . dwc:authority "J. Sow. 1816" ; dwc:authorityName "J. Sow." ; dwc:authorityYear "1816" ; dwc:class "Bivalvia" ; dwc:family "Ostreidae" ; dwc:genus "Lopha" ; dwc:kingdom "Animalia" ; dwc:order "Ostreoida" ; dwc:phylum "Mollusca" ; dwc:rank "species" ; dwc:scientificNameAuthorship "J. Sow., 1816" ; dwc:species "gregarea" ; dwc:subGenus "Actinostreon" ; trt:hasTaxonName ; a dwcFP:TaxonConcept . dwc:authority "Sowerby, 1815" ; dwc:authorityName "Sowerby" ; dwc:authorityYear "1815" ; dwc:class "Bivalvia" ; dwc:family "Ostreidae" ; dwc:genus "Lopha" ; dwc:kingdom "Animalia" ; dwc:order "Ostreoida" ; dwc:phylum "Mollusca" ; dwc:rank "species" ; dwc:scientificNameAuthorship "Sowerby, 1815" ; dwc:species "gregarea" ; dwc:subGenus "Rastellum" ; trt:hasTaxonName ; a dwcFP:TaxonConcept . dwc:authority "Goldfuss, 1834" ; dwc:authorityName "Goldfuss" ; dwc:authorityYear "1834" ; dwc:class "Bivalvia" ; dwc:family "Ostreidae" ; dwc:genus "Lopha" ; dwc:kingdom "Animalia" ; dwc:order "Ostreoida" ; dwc:phylum "Mollusca" ; dwc:rank "species" ; dwc:scientificNameAuthorship "Goldfuss, 1834" ; dwc:species "pulligera" ; dwc:subGenus "Lopha" ; trt:hasTaxonName ; a dwcFP:TaxonConcept . dwc:authority "J. Sowerby, 1816" ; dwc:authorityName "J. Sowerby" ; dwc:authorityYear "1816" ; dwc:class "Bivalvia" ; dwc:family "Ostreidae" ; dwc:genus "Actinostreon" ; dwc:kingdom "Animalia" ; dwc:order "Ostreoida" ; dwc:phylum "Mollusca" ; dwc:rank "species" ; dwc:scientificNameAuthorship "J. Sowerby, 1816" ; dwc:species "gregareum" ; trt:hasTaxonName ; a dwcFP:TaxonConcept . dwc:authority "J. Sowerby, 1824" ; dwc:authorityName "J. Sowerby" ; dwc:authorityYear "1824" ; dwc:class "Bivalvia" ; dwc:family "Ostreidae" ; dwc:genus "Actinostreon" ; dwc:kingdom "Animalia" ; dwc:order "Ostreoida" ; dwc:phylum "Mollusca" ; dwc:rank "species" ; dwc:scientificNameAuthorship "J. Sowerby, 1824" ; dwc:species "solitarium" ; trt:hasTaxonName ; a dwcFP:TaxonConcept . dwc:authority "Reed, 1936" ; dwc:authorityName "Reed" ; dwc:authorityYear "1936" ; dwc:class "Bivalvia" ; dwc:family "Ostreidae" ; dwc:genus "Actinostreon" ; dwc:kingdom "Animalia" ; dwc:order "Ostreoida" ; dwc:phylum "Mollusca" ; dwc:rank "species" ; dwc:scientificNameAuthorship "Reed, 1936" ; dwc:species "namtuensis" ; trt:hasTaxonName ; a dwcFP:TaxonConcept . dwc:authority "Schafle, 1929" ; dwc:authorityName "Schafle" ; dwc:authorityYear "1929" ; dwc:class "Bivalvia" ; dwc:family "Ostreidae" ; dwc:genus "Actinostreon" ; dwc:kingdom "Animalia" ; dwc:order "Ostreoida" ; dwc:phylum "Mollusca" ; dwc:rank "species" ; dwc:scientificNameAuthorship "Schafle, 1929" ; dwc:species "arietis" ; trt:hasTaxonName ; a dwcFP:TaxonConcept . dwc:authority "Defrance, 1821" ; dwc:authorityName "Defrance" ; dwc:authorityYear "1821" ; dwc:class "Bivalvia" ; dwc:family "Ostreidae" ; dwc:genus "Actinostreon" ; dwc:kingdom "Animalia" ; dwc:order "Ostreoida" ; dwc:phylum "Mollusca" ; dwc:rank "species" ; dwc:scientificNameAuthorship "Defrance, 1821" ; dwc:species "erucum" ; trt:hasTaxonName ; a dwcFP:TaxonConcept . dwc:authority "Schlotheim, 1820" ; dwc:authorityName "Schlotheim" ; dwc:authorityYear "1820" ; dwc:class "Bivalvia" ; dwc:family "Ostreidae" ; dwc:genus "Ostrea" ; dwc:kingdom "Animalia" ; dwc:order "Ostreoida" ; dwc:phylum "Mollusca" ; dwc:rank "species" ; dwc:scientificNameAuthorship "Schlotheim, 1820" ; dwc:species "hastellata" ; trt:hasTaxonName ; a dwcFP:TaxonConcept . dwc:authority "Goldfuss, 1833" ; dwc:authorityName "Goldfuss" ; dwc:authorityYear "1833" ; dwc:class "Bivalvia" ; dwc:family "Ostreidae" ; dwc:genus "Actinostreon" ; dwc:kingdom "Animalia" ; dwc:order "Ostreoida" ; dwc:phylum "Mollusca" ; dwc:rank "species" ; dwc:scientificNameAuthorship "Goldfuss, 1833" ; dwc:species "pulligerum" ; trt:hasTaxonName ; a dwcFP:TaxonConcept . dwc:authority "Defrance, 1821" ; dwc:authorityName "Defrance" ; dwc:authorityYear "1821" ; dwc:class "Bivalvia" ; dwc:family "Myalinidae" ; dwc:genus "Rastellum" ; dwc:kingdom "Animalia" ; dwc:order "Pterioida" ; dwc:phylum "Mollusca" ; dwc:rank "species" ; dwc:scientificNameAuthorship "Defrance, 1821" ; dwc:species "rusticum" ; trt:hasTaxonName ; a dwcFP:TaxonConcept . dwc:authority "Defrance, 1821" ; dwc:authorityName "Defrance" ; dwc:authorityYear "1821" ; dwc:class "Bivalvia" ; dwc:family "Ostreidae" ; dwc:genus "Ostrea" ; dwc:kingdom "Animalia" ; dwc:order "Ostreoida" ; dwc:phylum "Mollusca" ; dwc:rank "species" ; dwc:scientificNameAuthorship "Defrance, 1821" ; dwc:species "rustica" ; trt:hasTaxonName ; a dwcFP:TaxonConcept . dwc:authority "d'Orbigny, 1850" ; dwc:authorityName "d'Orbigny" ; dwc:authorityYear "1850" ; dwc:class "Bivalvia" ; dwc:family "Ostreidae" ; dwc:genus "Ostrea" ; dwc:kingdom "Animalia" ; dwc:order "Ostreoida" ; dwc:phylum "Mollusca" ; dwc:rank "species" ; dwc:scientificNameAuthorship "d'Orbigny, 1850" ; dwc:species "amata" ; trt:hasTaxonName ; a dwcFP:TaxonConcept . dwc:class "Bivalvia" ; dwc:family "Ostreidae" ; dwc:genus "Actinostreon" ; dwc:kingdom "Animalia" ; dwc:order "Ostreoida" ; dwc:phylum "Mollusca" ; dwc:rank "species" ; dwc:species "gregareum" ; trt:hasParentName ; a dwcFP:TaxonName . dwc:class "Bivalvia" ; dwc:family "Ostreidae" ; dwc:genus "Actinostreon" ; dwc:kingdom "Animalia" ; dwc:order "Ostreoida" ; dwc:phylum "Mollusca" ; dwc:rank "genus" ; trt:hasParentName ; a dwcFP:TaxonName . dwc:class "Bivalvia" ; dwc:family "Ostreidae" ; dwc:kingdom "Animalia" ; dwc:order "Ostreoida", "Ostreida", "Pterioida" ; dwc:phylum "Mollusca" ; dwc:rank "family" ; trt:hasParentName , , ; a dwcFP:TaxonName . dwc:class "Bivalvia" ; dwc:kingdom "Animalia" ; dwc:order "Ostreoida" ; dwc:phylum "Mollusca" ; dwc:rank "order" ; trt:hasParentName ; a dwcFP:TaxonName . dwc:class "Bivalvia" ; dwc:kingdom "Animalia" ; dwc:phylum "Mollusca" ; dwc:rank "class" ; trt:hasParentName ; a dwcFP:TaxonName . dwc:kingdom "Animalia" ; dwc:phylum "Mollusca" ; dwc:rank "phylum" ; trt:hasParentName ; a dwcFP:TaxonName . dwc:kingdom "Animalia" ; dwc:rank "kingdom" ; a dwcFP:TaxonName . dwc:class "Bivalvia" ; dwc:family "Ostreidae" ; dwc:genus "Alectryonia" ; dwc:kingdom "Animalia" ; dwc:order "Ostreida" ; dwc:phylum "Mollusca" ; dwc:rank "species" ; dwc:species "vallata" ; trt:hasParentName ; a dwcFP:TaxonName . dwc:class "Bivalvia" ; dwc:family "Ostreidae" ; dwc:genus "Alectryonia" ; dwc:kingdom "Animalia" ; dwc:order "Ostreida" ; dwc:phylum "Mollusca" ; dwc:rank "genus" ; trt:hasParentName ; a dwcFP:TaxonName . dwc:class "Bivalvia" ; dwc:kingdom "Animalia" ; dwc:order "Ostreida" ; dwc:phylum "Mollusca" ; dwc:rank "order" ; trt:hasParentName ; a dwcFP:TaxonName . dwc:class "Bivalvia" ; dwc:family "Ostreidae" ; dwc:genus "Ostrea" ; dwc:kingdom "Animalia" ; dwc:order "Ostreoida" ; dwc:phylum "Mollusca" ; dwc:rank "species" ; dwc:species "solitaria" ; trt:hasParentName ; a dwcFP:TaxonName . dwc:class "Bivalvia" ; dwc:family "Ostreidae" ; dwc:genus "Ostrea" ; dwc:kingdom "Animalia" ; dwc:order "Ostreoida" ; dwc:phylum "Mollusca" ; dwc:rank "genus" ; trt:hasParentName ; a dwcFP:TaxonName . dwc:class "Bivalvia" ; dwc:family "Ostreidae" ; dwc:genus "Ostrea" ; dwc:kingdom "Animalia" ; dwc:order "Ostreoida" ; dwc:phylum "Mollusca" ; dwc:rank "species" ; dwc:species "pulligera" ; trt:hasParentName ; a dwcFP:TaxonName . dwc:class "Bivalvia" ; dwc:family "Ostreidae" ; dwc:genus "Lopha" ; dwc:kingdom "Animalia" ; dwc:order "Ostreoida" ; dwc:phylum "Mollusca" ; dwc:rank "species" ; dwc:species "solitaria" ; dwc:subGenus "Lopha" ; trt:hasParentName , ; a dwcFP:TaxonName . dwc:class "Bivalvia" ; dwc:family "Ostreidae" ; dwc:genus "Lopha" ; dwc:kingdom "Animalia" ; dwc:order "Ostreoida" ; dwc:phylum "Mollusca" ; dwc:rank "genus" ; trt:hasParentName ; a dwcFP:TaxonName . dwc:class "Bivalvia" ; dwc:family "Ostreidae" ; dwc:genus "Lopha" ; dwc:kingdom "Animalia" ; dwc:order "Ostreoida" ; dwc:phylum "Mollusca" ; dwc:rank "species" ; dwc:species "gregarea" ; dwc:subGenus "Rastellum", "Actinostreon" ; trt:hasParentName , , ; a dwcFP:TaxonName . dwc:class "Bivalvia" ; dwc:family "Ostreidae" ; dwc:genus "Lopha" ; dwc:kingdom "Animalia" ; dwc:order "Ostreoida" ; dwc:phylum "Mollusca" ; dwc:rank "subGenus" ; dwc:subGenus "Rastellum" ; trt:hasParentName ; a dwcFP:TaxonName . dwc:class "Bivalvia" ; dwc:family "Ostreidae" ; dwc:genus "Lopha" ; dwc:kingdom "Animalia" ; dwc:order "Ostreoida" ; dwc:phylum "Mollusca" ; dwc:rank "subSpecies", "variety" ; dwc:species "asellus" ; dwc:subSpecies "namtuensis" ; dwc:variety "namtuensis" ; trt:hasParentName ; a dwcFP:TaxonName . dwc:class "Bivalvia" ; dwc:family "Ostreidae" ; dwc:genus "Lopha" ; dwc:kingdom "Animalia" ; dwc:order "Ostreoida" ; dwc:phylum "Mollusca" ; dwc:rank "species" ; dwc:species "asellus" ; trt:hasParentName ; a dwcFP:TaxonName . dwc:class "Bivalvia" ; dwc:family "Ostreidae" ; dwc:genus "Arctostrea" ; dwc:kingdom "Animalia" ; dwc:order "Pterioida" ; dwc:phylum "Mollusca" ; dwc:rank "species" ; dwc:species "gregaria" ; trt:hasParentName ; a dwcFP:TaxonName . dwc:class "Bivalvia" ; dwc:family "Ostreidae" ; dwc:genus "Arctostrea" ; dwc:kingdom "Animalia" ; dwc:order "Pterioida" ; dwc:phylum "Mollusca" ; dwc:rank "genus" ; trt:hasParentName ; a dwcFP:TaxonName . dwc:class "Bivalvia" ; dwc:kingdom "Animalia" ; dwc:order "Pterioida" ; dwc:phylum "Mollusca" ; dwc:rank "order" ; trt:hasParentName ; a dwcFP:TaxonName . dwc:class "Bivalvia" ; dwc:family "Ostreidae" ; dwc:genus "Lopha" ; dwc:kingdom "Animalia" ; dwc:order "Ostreoida" ; dwc:phylum "Mollusca" ; dwc:rank "subGenus" ; dwc:subGenus "Actinostreon" ; trt:hasParentName ; a dwcFP:TaxonName . dwc:class "Bivalvia" ; dwc:family "Ostreidae" ; dwc:genus "Lopha" ; dwc:kingdom "Animalia" ; dwc:order "Ostreoida" ; dwc:phylum "Mollusca" ; dwc:rank "species" ; dwc:species "pulligera" ; dwc:subGenus "Lopha" ; trt:hasParentName , ; a dwcFP:TaxonName . dwc:class "Bivalvia" ; dwc:family "Ostreidae" ; dwc:genus "Lopha" ; dwc:kingdom "Animalia" ; dwc:order "Ostreoida" ; dwc:phylum "Mollusca" ; dwc:rank "subGenus" ; dwc:subGenus "Lopha" ; trt:hasParentName ; a dwcFP:TaxonName . dwc:class "Bivalvia" ; dwc:family "Ostreidae" ; dwc:genus "Actinostreon" ; dwc:kingdom "Animalia" ; dwc:order "Ostreoida" ; dwc:phylum "Mollusca" ; dwc:rank "species" ; dwc:species "solitarium" ; trt:hasParentName ; a dwcFP:TaxonName . dwc:class "Bivalvia" ; dwc:family "Ostreidae" ; dwc:genus "Actinostreon" ; dwc:kingdom "Animalia" ; dwc:order "Ostreoida" ; dwc:phylum "Mollusca" ; dwc:rank "species" ; dwc:species "costatum" ; trt:hasParentName ; a dwcFP:TaxonName . dwc:class "Bivalvia" ; dwc:family "Ostreidae" ; dwc:genus "Ostrea" ; dwc:kingdom "Animalia" ; dwc:order "Ostreoida" ; dwc:phylum "Mollusca" ; dwc:rank "species" ; dwc:species "gregarea" ; trt:hasParentName ; a dwcFP:TaxonName . dwc:class "Bivalvia" ; dwc:family "Ostreidae" ; dwc:genus "Actinostreon" ; dwc:kingdom "Animalia" ; dwc:order "Ostreoida" ; dwc:phylum "Mollusca" ; dwc:rank "species" ; dwc:species "namtuensis" ; trt:hasParentName ; a dwcFP:TaxonName . dwc:class "Bivalvia" ; dwc:family "Ostreidae" ; dwc:genus "Actinostreon" ; dwc:kingdom "Animalia" ; dwc:order "Ostreoida" ; dwc:phylum "Mollusca" ; dwc:rank "species" ; dwc:species "arietis" ; trt:hasParentName ; a dwcFP:TaxonName . dwc:class "Cephalopoda" ; dwc:family "Arietitidae" ; dwc:genus "Arietites" ; dwc:kingdom "Animalia" ; dwc:order "Ammonitida" ; dwc:phylum "Mollusca" ; dwc:rank "genus" ; trt:hasParentName ; a dwcFP:TaxonName . dwc:class "Cephalopoda" ; dwc:family "Arietitidae" ; dwc:kingdom "Animalia" ; dwc:order "Ammonitida" ; dwc:phylum "Mollusca" ; dwc:rank "family" ; trt:hasParentName ; a dwcFP:TaxonName . dwc:class "Cephalopoda" ; dwc:kingdom "Animalia" ; dwc:order "Ammonitida" ; dwc:phylum "Mollusca" ; dwc:rank "order" ; trt:hasParentName ; a dwcFP:TaxonName . dwc:class "Cephalopoda" ; dwc:kingdom "Animalia" ; dwc:phylum "Mollusca" ; dwc:rank "class" ; trt:hasParentName ; a dwcFP:TaxonName . dwc:class "Bivalvia" ; dwc:family "Ostreidae" ; dwc:genus "Actinostreon" ; dwc:kingdom "Animalia" ; dwc:order "Ostreoida" ; dwc:phylum "Mollusca" ; dwc:rank "species" ; dwc:species "erucum" ; trt:hasParentName ; a dwcFP:TaxonName . dwc:class "Bivalvia" ; dwc:family "Ostreidae" ; dwc:genus "Ostrea" ; dwc:kingdom "Animalia" ; dwc:order "Ostreoida" ; dwc:phylum "Mollusca" ; dwc:rank "species" ; dwc:species "eruca" ; trt:hasParentName ; a dwcFP:TaxonName . dwc:class "Bivalvia" ; dwc:family "Ostreidae" ; dwc:genus "Ostrea" ; dwc:kingdom "Animalia" ; dwc:order "Ostreoida" ; dwc:phylum "Mollusca" ; dwc:rank "species" ; dwc:species "hastellata" ; trt:hasParentName ; a dwcFP:TaxonName . dwc:class "Bivalvia" ; dwc:family "Myalinidae" ; dwc:genus "Rastellum" ; dwc:kingdom "Animalia" ; dwc:order "Pterioida" ; dwc:phylum "Mollusca" ; dwc:rank "genus" ; trt:hasParentName ; a dwcFP:TaxonName . dwc:class "Bivalvia" ; dwc:family "Myalinidae" ; dwc:kingdom "Animalia" ; dwc:order "Pterioida" ; dwc:phylum "Mollusca" ; dwc:rank "family" ; trt:hasParentName ; a dwcFP:TaxonName . dwc:class "Bivalvia" ; dwc:family "Ostreidae" ; dwc:genus "Agerostrea" ; dwc:kingdom "Animalia" ; dwc:order "Ostreoida" ; dwc:phylum "Mollusca" ; dwc:rank "genus" ; trt:hasParentName ; a dwcFP:TaxonName . dwc:class "Bivalvia" ; dwc:family "Ostreidae" ; dwc:genus "Actinostreon" ; dwc:kingdom "Animalia" ; dwc:order "Ostreoida" ; dwc:phylum "Mollusca" ; dwc:rank "species" ; dwc:species "pulligerum" ; trt:hasParentName ; a dwcFP:TaxonName . dwc:class "Bivalvia" ; dwc:family "Ostreidae" ; dwc:genus "Ambigostrea" ; dwc:kingdom "Animalia" ; dwc:order "Ostreoida" ; dwc:phylum "Mollusca" ; dwc:rank "species" ; dwc:species "boucaudensis" ; trt:hasParentName ; a dwcFP:TaxonName . dwc:class "Bivalvia" ; dwc:family "Ostreidae" ; dwc:genus "Ambigostrea" ; dwc:kingdom "Animalia" ; dwc:order "Ostreoida" ; dwc:phylum "Mollusca" ; dwc:rank "genus" ; trt:hasParentName ; a dwcFP:TaxonName . dwc:class "Bivalvia" ; dwc:family "Ostreidae" ; dwc:genus "Agerostrea" ; dwc:kingdom "Animalia" ; dwc:order "Ostreoida" ; dwc:phylum "Mollusca" ; dwc:rank "species" ; dwc:species "geological" ; trt:hasParentName ; a dwcFP:TaxonName . dwc:class "Bivalvia" ; dwc:family "Myalinidae" ; dwc:genus "Rastellum" ; dwc:kingdom "Animalia" ; dwc:order "Pterioida" ; dwc:phylum "Mollusca" ; dwc:rank "species" ; dwc:species "rusticum" ; trt:hasParentName ; a dwcFP:TaxonName . dwc:class "Bivalvia" ; dwc:family "Ostreidae" ; dwc:genus "Ostrea" ; dwc:kingdom "Animalia" ; dwc:order "Ostreoida" ; dwc:phylum "Mollusca" ; dwc:rank "species" ; dwc:species "rustica" ; trt:hasParentName ; a dwcFP:TaxonName . dwc:class "Bivalvia" ; dwc:family "Ostreidae" ; dwc:genus "Ostrea" ; dwc:kingdom "Animalia" ; dwc:order "Ostreoida" ; dwc:phylum "Mollusca" ; dwc:rank "species" ; dwc:species "amata" ; trt:hasParentName ; a dwcFP:TaxonName . dwc:class "Cephalopoda" ; dwc:family "Pachyceratidae" ; dwc:genus "Erymnoceras" ; dwc:kingdom "Animalia" ; dwc:order "Ammonitida" ; dwc:phylum "Mollusca" ; dwc:rank "species" ; dwc:species "coronatum" ; trt:hasParentName ; a dwcFP:TaxonName . dwc:class "Cephalopoda" ; dwc:family "Pachyceratidae" ; dwc:genus "Erymnoceras" ; dwc:kingdom "Animalia" ; dwc:order "Ammonitida" ; dwc:phylum "Mollusca" ; dwc:rank "genus" ; trt:hasParentName ; a dwcFP:TaxonName . dwc:class "Cephalopoda" ; dwc:family "Pachyceratidae" ; dwc:kingdom "Animalia" ; dwc:order "Ammonitida" ; dwc:phylum "Mollusca" ; dwc:rank "family" ; trt:hasParentName ; a dwcFP:TaxonName . dc:description "FIGURE 20. Actinostreon gregareum (J. Sowerby, 1815). 1. RV, VTT 006 - 77, lateral. 2. LV, VTT 001 - 1455, lateral. 3. LV, VTT 009 - 41, interior. 4. Both valves, VTT 001 - 1700, ventral; all specimens from Vâ Tche Tchâ near Courtedoux, Switzerland, Lower Kimmeridgian." ; fabio:hasRepresentation ; a fabio:Figure .