Phylum
Mollusca Linnaeus, 1758
molluscs
Selection of related publications
Kröger, B. 2025. The Lyckholm acme of cephalopods – Review of the late Katian (Vormsi–Pirgu regional stages) Ordovician cephalopods of Estonia. European Journal of Taxonomy 978, 1-169. DOI:10.5852/ejt.2025.978.2801
Aubrechtová, M., & Korn, D. 2025. The coiled Middle Ordovician cephalopod genera Trocholites and Curtoceras (Tarphyceratida) from Baltoscandia and north-central Europe. European Journal of Taxonomy 982, 1-78. DOI:10.5852/ejt.2025.982.2843
Vinn, O., Wilson, M. A., Isakar, M., Toom, U. 2025. Rare Arachnostega traces in brachiopod and gastropod molds from the Silurian of Gotland (Sweden) and Saaremaa (Estonia): was tropical climate unfavorable for the trace makers?. Neues Jahrbuch für Geologie und Paläontologie. Abhandlungen 313, 2, 153-159. DOI:10.1127/njgpa/2024/1226
Vinn, O., Liang, K., Isakar, M., Alkahtane, A. A., Al Farraj, S., El Hedeny, M. 2025. The evolutionary innovation of coral colonization on motile gastropod shells arose shortly after the Great Ordovician Biodiversification Event in Baltica. Palaios 40, 2, 62-69. DOI:10.2110/palo.2024.010
Ebbestad, J. O. R., Cederström, P., Peel, J. S. 2024. Helcionelloid molluscs from the lower Cambrian (Series 2, Stage 4) of southern Sweden. Historical Biology 36, 9, 1854-1882. DOI:10.1080/08912963.2023.2234393
Peel, J. S. 2024. Musculature of an Ordovician (Darriwilian) patelliform gastropod from Estonia. GFF 145, 3-4, 113–122. DOI:10.1080/11035897.2023.2301542
Vinn, O., Ernst, A., Isakar, M., El-Hedeny, I Almansour, M., Al Farraj, S. 2024. Cryptic fauna in abandoned bivalve shells and taphonomy of bivalve steinkerns in the Late Ordovician of Baltica. Historical Biology 1-6. DOI:10.1080/08912963.2024.2383702
Nützel, A., Ebbestad, J. O., Seuss, B., Munnecke, A., Mapes, R. H., Cook, A. G. 2023. On Paleozoic platycerate gastropods. Zitteliana 97, 29-51. DOI:10.3897/zitteliana.97.115688
Vinn, O., Holmer, L. E., Wilson, M. A., Isakar, M., Toom, U. 2023. A Rowellella (Lingulata, Brachiopoda) nestler in a Trypanites boring from the Middle Ordovician of Estonia: An early colonizer of hard substrate borings. Palaios 38, 5, 240-245. DOI:10.2110/palo.2023.003
Aubrechtová, M., Korn, D. 2022. Taxonomy and ontogeny of the Lituitida (Cephalopoda) from Orthoceratite Limestone erratics (Middle Ordovician). European Journal of Taxonomy 799, 1-108. DOI:10.5852/ejt.2022.799.1681
Ebbestad, J. O. R., Kolata, D. R., Isakar, M. 2021. New onychochilid mollusks from the Middle and Upper Ordovician of Baltica and Laurentia. Journal of Paleontology 95, 1, 106-122. DOI:10.1017/jpa.2020.81
Peel, J. S. 2020. Muscle scars, mode of life and systematics of Pollicina (Mollusca) from the Ordovician of Baltica. Estonian Journal of Earth Sciences 69, 1, 20-36. DOI:10.3176/earth.2020.02
Peel, J. S. 2020. The Dala thumb: shell morphology and failed predation in Pollicina cyathina (Gastropoda) from the Ordovician of Dalarna, Sweden. GFF 142, 2, 139-146. DOI:10.1080/11035897.2020.1728374
Aubrechtová, M., Meidla, T. 2020. Lituitid cephalopods from the upper Darriwilian and basal Sandbian (Middle–Upper Ordovician) of Estonia. GFF 142, 4, 267-296. DOI:10.1080/11035897.2020.1762723
Toom, U., Vinn, O., Isakar, M., Madison, A., Hints, O. 2020. Small faecal pellets in Ordovician shelly fossils from Estonia, Baltoscandia. Estonian Journal of Earth Sciences 69, 1, 1-19. DOI:10.3176/earth.2020.01
Gubanov, A. P., Ebbestad, J. O. R., Männik, P., Bogolepova, O. K. 2020. New data on the problematic mollusc Jinonicella from the early Silurian of east Siberia. GFF 142, 2, 147-153. DOI:10.1080/11035897.2019.1708451
Kröger, B., Aubrechtová, M. 2019. The cephalopods of the Kullsberg Limestone Formation, Upper Ordovician, central Sweden and the effects of reef diversification on cephalopod diversity. Journal of Systematic Palaeontology 17, 12, 961-995. DOI:10.1080/14772019.2018.1491899
Pohle, A., Klug, C., Toom, U., Kröger, B. 2019. Conch structures, soft-tissue imprints and taphonomy of the Middle Ordovician cephalopod Tragoceras falcatum from Estonia. Fossil Imprint 75, 1, 70-78. DOI:10.2478/if-2019-0006
Kröger, B., Aubrechtová, M. 2018. Cephalopods from reef limestone of the Vasalemma Formation, northern Estonia (latest Sandbian, Upper Ordovician) and the establishment of a local warm-water fauna. Journal of Systematic Palaeontology 16, 10, 799-839. DOI:10.1080/14772019.2017.1347212
Berg-Madsen, V., Valent, M., Ebbestad, J. O. R. 2018. An orthothecid hyolith with a digestive tract from the early Cambrian of Bornholm, Denmark. GFF 140, 1, 25-37. DOI:10.1080/11035897.2018.1432680
Ebbestad, J. O. R., Rhebergen, F., Gubanov, A. P. 2017. Late Ordovician rostroconchs (Mollusca) from fluvial erratics in northwestern Europe. Bulletin of Geosciences 92, 4, 405-438. DOI:10.3140/bull.geosci.1675
Gubanov, A. P., Ebbestad, J. R. O., Männik, P. 2017. The problematic mollusc Jinonicella from the Silurian of North America. GFF 139, 3, 216-218. DOI:10.1080/11035897.2017.1291539
Aubrechtová, M., Meidla, T. 2016. The oldest ascocerid cephalopod from the Silurian of Estonia and notes on the biogeography of the order Ascocerida (class Cephalopoda). Estonian Journal of Earth Sciences 65, 2, 98-104. DOI:10.3176/earth.2016.07
Mutvei, H. 2015. Characterization of two superorders Nautilosiphonata and Calciosiphonata and a new order Cyrtocerinida of the subclass Nautiloidea; siphuncular structure in the Ordovician nautiloid Bathmoceras (Cephalopoda). GFF 137, 3, 164-174. DOI:10.1080/11035897.2015.1061592
Høyberget, M., Ebbestad, J. O. R., Funke, B., Nakrem, H. A. 2015. The shelly fauna and biostratigraphy of the lower Cambrian (provisional series 2, stage 4) Evjevik Member, Ringstrand Formation in the Mjøsa area, Norway. Norwegian Journal of Geology 95, 1, 23-56. DOI:10.17850/njg95-1-02
Manda, Š., Turek, V. 2015. Colour patterns on Silurian orthocerid and pseudorthocerid Conchs from Gotland - palaeoecological implications. Estonian Journal of Earth Sciences 64, 1, 74-79. DOI:10.3176/earth.2015.13
Aubrechtová, M. 2015. A revision of the Ordovician cephalopod Bactrites sandbergeri Barrande: Systematic position and palaeobiogeography of Bactroceras. Geobios 48, 3, 193-211. DOI:10.1016/j.geobios.2015.03.002
King, A. H. 2014. Taxonomic review of early Darriwilian estonioceratids (Tarphycerida, Nautiloidea) from Sweden, Estonia, and the ‘Diluvium-Geschiebe’ ofnorthern Germany and Poland. Denisia 32, 47-57.
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
Ebbestad, J. O. R., Högström, A. E. S., Frisk, Ǻ. M. 2013. Gastropods and tergomyans from the Upper Ordovician (Viru-Harju) of the Fagelsang area, Scania, southern Sweden. Journal of Systematic Palaeontology 11, 3, 295-336. DOI:10.1080/14772019.2012.660994
Tatzreiter, F., Zorn, I. 2013. The Cephalopods of the Hallstatt Limestone Described in the Monographs by Edmund von Mojsisovics 1873, 1875 and 1902 Stored in the Palaeontological Collection of the Geological Survey of Austria. Jahrbuch Geologische Bundesanstalt 153, 1-4, 107-190.
Vinn, O., Wilson, M. A. 2013. Silurian cornulitids of Estonia (Baltica). Carnets de Géologie A09, 357-367. DOI:10.4267/2042/53034
Kröger, B. 2012. The “Vaginaten”: the dominant cephalopods of the Baltoscandian Mid Ordovician endocerid limestone. GFF 134, 2, 115-132. DOI:10.1080/11035897.2012.691897
Kröger, B., Ebbestad, J. O. R., Högström, A. E. S., Frisk, Ǻ. M. 2011. Mass concentration of Hirnantian cephalopods from the Siljan District, Sweden; taxonomy, palaeoecology and palaeobiogeographic relationships. Fossil Record 14, 1, 35-53. DOI:10.1002/mmng.201000014
Mutvei, H., Dunca, E. 2011. Siphuncular structure in the orders Tarphycerida and Barrandeocerida (Cephalopoda: Nautiloidea). Palaeontology 54, 3, 705-710. DOI:10.1111/j.1475-4983.2011.01041.x
Kröger, B., Zhang, Y., Isakar, M. 2009. Discosorids and Oncocerids (Cephalopoda) of the Middle Ordovician Kunda and Aseri Regional Stages of Baltoscandia and the early evolution of these groups. Geobios 42, 3, 273-292. DOI:10.1016/j.geobios.2008.09.006
Högström, A. E. S., Ebbestad, J. O. R., Suzuki, Y. 2009. Armoured annelids and molluscs from the Upper Ordovician Boda Limestone, central Sweden. GFF 131, 3, 245-252. DOI:10.1080/11035890903189801
Malinky, J. M., Eriksson, M. E., Ahlberg, P. 2009. ‘Mediterranean Province' hyoliths from the middle Cambrian and Upper Ordovician of Sweden. GFF 131, 4, 281-291. DOI:10.1080/11035890903458693
Ebbestad, J. O. R., Lindström, A., Peel, J. S. 2009. Predation on bellerophontiform molluscs in the Palaeozoic. Lethaia 42, 4, 469-485. DOI:10.1111/j.1502-3931.2009.00167.x
Dies Álvarez, M. E., Gozalo, R., Cederström, P., Ahlberg, P. 2008. Bradoriid arthropods from the lower-middle Cambrian of Scania, Sweden. Acta Palaeontologica Polonica 53, 4, 647-656. DOI:10.4202/app.2008.0409
Křiž, J. 2008. A new bivalve community from the lower Ludlow of the Prague Basin (Perunica, Bohemia). Bulletin of Geosciences 83, 3, 237-280. DOI:10.3140/bull.geosci.2008.03.237
Kröger, B. 2007. Concentrations of juvenile and small adult cephalopods in the Hirnantian cherts (Late Ordovician) of Porkuni, Estonia. Acta Palaeontologica Polonica 52, 3, 591–608.
Isakar, M., Peel, J. S. 2007. Lower Cambriam helcionelloid molluscs from Estonia. GFF 129, 3, 255-262. DOI:10.1080/11035890701293255
Frisk, Ǻ. M., Ebbestad, J. O. R. 2007. Paragastropoda, Tergomya and Gastropoda (Mollusca) from the Upper Ordovician Dalby Limestone, Sweden. GFF 129, 2, 83-99. DOI:10.1080/11035890701292083
Ebbestad, J. O. R., Högström, A. E. S. 2007. Locality descriptions, the Siljan District. WOGOGOB 2007. 9th meeting of the Working Group on Ordovician Geology of Baltoscandia. Field guide and Abstracts, pp. 52-58. SGU.
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
Malinky, J. M. 2006. Revision of Hyolitha from the Ordovician of Estonia. Paläontologische Zeitschrift 80, 1, 88-106. DOI:10.1007/BF02988400
Peel, J. S., Jeppsson, L. 2006. The problematic fossil Jinonicella from the Lower Silurian of Gotland. GFF 128, 1, 39-42. DOI:10.1080/11035890601281039
Rogalla, N. S., Amler, M. R. W. 2006. Revision der Familie Pseudobigaleaidae Hoare, Mapes & Yancey, 2002 (Mollusca; Rostroconchia). Paläontologische Zeitschrift 80, 2, 167–208. DOI:10.1007/BF02988975
Kröger, B., Klug, C., Mapes, R. 2005. Soft−tissue attachments in orthocerid and bactritid cephalopods from the Earlyand Middle Devonian of Germany and Morocco. Acta Palaeontologica Polonica 50, 2, 329–342.
Kröger, B., Mutvei, H. 2005. Nautiloids with multiple paired muscle scars from Lower-Middle Ordovician of Baltoscandia. Palaeontology 48, 4, 781-791. DOI:10.1111/j.1475-4983.2005.00478.x
Kröger, B. 2004. Revision of Middle Ordovician orthoceratacean nautiloids from Baltoscandia. Acta Palaeontologica Polonica 49, 1, 57-74.
Malinky, J. M. 2003. New Middle and Late Ordovician hyoliths from Estonia. Journal of Paleontology 77, 2, 304-313. DOI:10.1017/S0022336000043651
Mutvei, H. 2002. Connecting ring structure and its significance for classification of the orthoceratid cephalopods. Acta Palaeontologica Polonica 47, 1, 157-168.
Malinky, J. M. 2002. A revision of Early to Mid Ordovician Hyoliths from Sweden. Palaeontology 45, 3, 511-555. DOI:10.1111/1475-4983.00248
Isakar, M., Ebbestad, J. O. R. 2000. Bucania (Gastropoda) from the Ordovician of Estonia. Paläontologische Zeitschrift 74, 1-2, 51-68. DOI:10.1007/BF02987951
King, A. H. 1999. A Review of Volkhovian and Kundan (Arenig-Llanvirn) Nautiloids from Sweden. Advancing Research on Living and Fossil Cephalopods, pp. 137-159. Springer. DOI:10.1007/978-1-4615-4837-9_11
Malinky, J. M., Berg-Madsen, V. 1999. A revision of Holm's Early and Early Mid Cambrian hyoliths of Sweden. Palaeontology 42, 1, 25-65. DOI:10.1111/1475-4983.00061
Jacobson, M. 1999. Five new cephalopod species from the Silurian of Gotland. Examensarbeite i geologi vid Lunds Universitet 108, 1-18.
Isakar, M., Ebbestad, J. O. R., Peel, J. S. 1999. Homeomorphic gastropods from the Silurian of Norway, Estonia and Bohemia. Norsk Geologisk Tidsskrift 79, 4, 281-288. DOI:10.1080/002919699433717
Mutvei, H. 1998. Siphuncular structure in a Silurian narthecoceratid nautiloid cephalopod from the Island of Gotland. GFF 120, 4, 375-378. DOI:10.1080/11035899801204375
King, A. H. 1998. A review of the cyclostomiceratid nautiloids, including new taxa from the Lower Ordovician of Öland, Sweden. Palaeontology 41, 2, 335 – 347.
Isakar, M., Peel, J. S. 1997. A new species of Mimospira (Onychochiloidea, Mollusca) from the Middle Ordovician of Estonia. GFF 119, 4, 275-277. DOI:10.1080/11035899709546487
Mutvei, H. 1997. Siphuncular structure in Ordovician endocerid cephalopods. Acta Palaeontologica Polonica 42, 3, 375-390.
Isakar, M. 1995. The platyceratacean gastropod Cyclonema (Cyclonema) hiiumaa Teichert, 1928 from the Llandovery (Silurian) of Estonia. Proceedings of the Estonian Academy of Sciences. Geology 44, 3, 184-187. DOI:10.3176/geol.1995.3.04
Hinz-Schallreuter, I. 1995. Middle Cambrian Bivalvia from Bornholm and a review of Cambrian bivalved Mollusca. Geschiebekunde aktuell 11, 3, 71-85.
Märss, T., Fredholm, D., Talimaa, V., Turner, S., Jeppson, L., Nowlan, G. 1995. Silurian vertebrate biozonal scheme. Geobios 28, Supl. 2, 369-372. DOI:10.1016/S0016-6995(95)80140-5
Isakar, M., Sinicyna, I. 1993. A new species Megalomoidea walliseri (Bivalvia) from the Silurian of Estonia. Proceedings of the Estonian Academy of Sciences. Geology 42, 3, 124-126. DOI:10.3176/geol.1993.3.04
Liljedahl, L. 1992. Yonginella, a new bivalve (Mollusca) from the Silurian of Gotland. Journal of Paleontology 66, 2, 211-214. DOI:10.1017/S0022336000033734
Isakar, M. 1991. Harjuan (Late Ordovician) new Bivalves and a new Gastropod from North Estonia. Acta et Commentationes Universitatis Tartuensis 934, 43-60.
Kiselev, G. N. 1991. Revizia pozdneordovikskikh i siluriskikh tsefalopod Pribaltiki iz kollektsii E. I. Eichwalda [Ревизия позднеордовикских и силурийских цефалопод прибалтики из коллекции Е. И. Эйхвальда]. Bulletin of the Moscow Society of Naturalists. Geological series 66, 4, 85-101.
Kiselev, G. N., Sinicyna, I. N., Isakar, M. A., Mironova, M. G., Saladzhius, V. Y. 1990. Atlas mollûskov verhnego ordovika i silura severo-zapada Vostočno-Evropejskoj platformy. pp. 1-80. Leningrad University.
Isakar, M. 1990. Bivalvia and Gastropoda. Field Meeting Estonia 1990. An Excursion Guidebook, pp. 64-65. Estonia Academy of Sciences.
Liljedahl, L. 1989. Fylgia baltica gen. et sp. nov. (Bivalvia, Mollusca) from the Silurian of Gotland. GFF 111, 4, 339-345. DOI:10.1080/11035898909453132
Cherns, L. 1988. Faunal and facies dynamics in the Upper Silurian of the Anglo-Welsh basin. Palaeontology 31, 2, 451-502.
Sweet, W. C. 1988. The Conodonta: morphology, taxonomy, paleoecology, and evolutionary history of a long-extinct animal phylum. Oxford Monographs on Geology and Geophysics 10, 1-212.
Frye, M. W. 1987. Upper Ordovician (Harjuan) oncoceratid nautiloids from the Boda Limestone, Siljan District, Sweden. GFF 109, 1, 83-99. DOI:10.1080/11035898709454748
Isakar, M., Sinicyna, 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. DOI:10.3176/geol.1985.2.02
Isakar, M. 1985. New bivalve genus Kogulanychia from the Upper Silurian of Estonia. Eesti NSV Teaduste Akadeemia Toimetised. Geoloogia / Известия Академии наук Эстонской ССР. Геология 34, 1, 30-31. DOI:10.3176/geol.1985.1.06
Sinicyna, I. N. 1983. Новый род двустворчатых моллюсков из среднего ордовика севера-запала Русской платформы. Paleontologicheskii sbornik 1983, 29-32.
Stumbur, H., Mutvei, H. 1983. A new Middle Ordovician torticonic nautiloid. GFF 105, 1, 43-47. DOI:DOI: 10.1080/11035898309455293
Linsley, R. M., Peel, J. S. 1983. Gonad pouches in a new clam-like monoplacophoran from the Silurian of Sweden. Lethaia 16, 3, 273-280. DOI:10.1111/j.1502-3931.1983.tb02009.x
Frye, M. W. 1982. Upper Ordovician (Harjuan) nautiloid cephalopods from the Boda Limestone of Sweden. Journal of Paleontology 56, 5, 1274-1295.
Dzik, J. 1980. Ontogeny of Bactrotheca and related hyoliths. GFF 102, 3, 223-233. DOI:10.1080/11035898009455162
Wängberg-Eriksson, K. 1979. Macluritacean gastropods from the Ordovician and Silurian of Sweden. Sveriges Geologiska Undersökning 733, 20, 3-33.
Mens, K. A., Pirrus, E. A. 1977. Stratotypes of the Cambrian Formations of Estonia. pp. 1-68. Valgus.
Pojeta, J., Runnegar, B. 1976. The paleontology of rostroconch mollusks and the early history of the phylum Mollusca. Geological Survey of Finland. Professional Paper 968, 1-85.
Peel, J. S., Yochelson, E. L. 1976. Two new gastropod genera from the Lower Silurian of the Oslo Region, Norway. Norsk Geologisk Tidsskrift 56, 1, 15-27.
Jankauskas, T., Posti, E. 1973. Micropaleontological characteristic of the stratotype sections of the Estonian Lower Cambrian. Eesti NSV Teaduste Akadeemia Toimetised. Keemia, Geoloogia / Известия Академии наук Эстонской ССР. Химия. Геология 22, 2, 143-148. DOI:10.3176/chem.geol.1973.2.08
Balashov, Z. G. 1971. O sistematičeskom položenii i stratigrafičeskom značenii roda Eushantungoceras (nadotrâd Actinoceratoidea). Voprosy paleontologii VI, 61-65. Izdatel'stvo Leningradskogo Universiteta.
Saladžius, V. J. 1971. Cephalopods of the Ludlowian and Downtonian deposits of the Upper Silurian of the Southern Baltic area. Palaeontology and stratigraphy of the Baltic and Byelorussia. Number III, pp. 205-208. Mintis.
Mutvei, H., Stumbur, H. 1971. Remarks on the Genus Pictetoceras (Cephalopoda: Ellesmerocerida). Bulletin of the Geological Institutions of the University of Uppsala 2, 13, 117-122.
Rõõmusoks, A. 1970. Stratigraphy of the Viruan Series (Middle Ordovician) in Northern Estonia, I. pp. 1-346. Valgus.
Soot-Ryen, H. 1969. A new species of Babinka (Bivalvia) from the Lower Ordovician of Öland, Sweden. Palaeontology 12, 2, 173-177.
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List of species
1. "Hyolithes" vaginati (Quenstedt, 1852) | Middle Ordovician
2. Actinoceras insulaenigrae Strand, 1934 | Ordovician
3. Adamsoceras holmi (Troedsson, 1926) | Kunda Stage
4. Ahtioconcha auris Öpik, 1930 | Kukruse Stage
5. Alastega lira Cherns, 1998 | Homerian
6. Aldanella kunda (Öpik, 1926) | Lower Cambrian (old nomenclature)
8. Allumettoceras mjoesense Sweet, 1958 | Darriwilian
9. Aluveroceras ievense Balashov, 1955 | Jõhvi Substage
10. Ambonychia incrassata (Eichwald, 1840) | Vormsi Stage
12. Ambonychinia corrugata Lindström, 1880 | Ordovician
14. Ambonychinia demissa Isberg, 1934 | Upper Ordovician
15. Ambonychinia elegans Isberg, 1934 | Upper Ordovician
16. Ambonychinia excelsa Isberg, 1934 | Upper Ordovician
17. Ambonychinia extumida Isberg, 1934 | Upper Ordovician
19. Ambonychinia intermedia Isberg, 1934 | Upper Ordovician
20. Ambonychinia kallholniensis Isberg, 1934 | Upper Ordovician
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Classification