Bivalvia

Ambonychia Hall, 1847

Selection of related publications
Isakar, M. 1991. Harjuan (Late Ordovician) new Bivalves and a new Gastropod from North Estonia. Acta et Commentationes Universitatis Tartuensis 934, 43-60. Eesti Ordoviitsiumi paleontoloogia ja stratigraafia, pp. 43-60.
Isakar, M., Sinitsyna, I. 1985. Redescription of E. Eichwald's Ordovician bivalve species. Eesti NSV Teaduste Akadeemia Toimetised. Geoloogia / Известия Академии наук Эстонской ССР. Геология 34, 2, 46-54.
Eichwald, E. 1860. Lethaea Rossica ou Paléontologie de la Russie. Premier volume. Ancienne Période en deux sections. DOI:10.5962/bhl.title.52391
References based on distribution