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IRN: 2931780
Taxonomic Name: Protokionoceras
Catalog Number: UC 22942
Family: Geisonoceratidae
Country: United States of America
Earliest Period: Silurian
Latest Period: Silurian |
IRN: 3654585
Taxonomic Name: Lecthaylus gregarius
Catalog Number: UC 31533 .2
Country: United States of America
Earliest Period: Silurian
Latest Period: Silurian |