Hemichordata Bateson, 1885

Selection of related publications
Männik, P., Tinn, O., Loydell, D. K. & Ainsaar. L. 2016. Age of the Kalana Lagerstätte, early Silurian, Estonia . Estonian Journal of Earth Sciences 65, 2, 105-114. DOI:10.3176/earth.2016.10
Männik, P., Loydell, D. K., Nestor, V. & Nõlvak, J. 2015. Integrated Upper Ordovician–lower Silurian biostratigraphy of the Grötlingbo-1 core section, Sweden. GFF 137, 3, 226-244. DOI:10.1080/11035897.2015.1042032
Maletz, J. & Steiner, M. 2015. Graptolites (Hemichordata, Pterobranchia) preservation and identification in the Cambrian Series 3. Palaeontology 58, 6, 1073–1107. DOI:10.1111/pala.12200
Goldman, D., Nõlvak, J. & Maletz, J. 2015. Middle to Late Ordovician graptolite and chitinozoan biostratigraphy of the Kandava-25 drill core in western Latvia. GFF 137, 3, 197-211. DOI:10.1080/11035897.2015.1021375
Bergström, S. M., Eriksson, M. E., Young, S. A., Ahlberg, P. & Schmitz, B. 2014. Hirnantian (latest Ordovician) d13C chemostratigraphy in southern Sweden and globally: a refined integration with the graptolite and conodont zone successions. GFF 136, 2, 355-386. DOI:10.1080/11035897.2013.851734
Maletz, J., Ahlberg, P., Suyarkova, A. & Loydell, D. K. 2014. Silurian graptolite biostratigraphy of the Röstånga-1 drill core, Scania - a standatd for southern Scandinavia. GFF 136, 1, 175-178. DOI:10.1080/11035897.2013.865665
Maletz, J. & Slovacek, M. 2013. The tubarium construction of Lower Ordovician (Dapingian) Baltograptus species (Graptolithina) from Dalarna, Sweden. Palaeontology 56, 5, 1107-1120. DOI:10.1111/pala.12038
Radzevičius, S. 2013. Silurian graptolite biozones of Lithuania: present and perspectives. Geologija 55, 2(82), 41-49. DOI:10.6001/geologija.v55i2.2757
Kozłowska, A. & Bates, D. E. B. 2013. Kirkigraptus, a new retiolitid graptolite from Poland. Acta Palaeontologica Polonica 53, 1, 105–112. DOI:10.4202/app.2008.0107
Loydell, D. K. 2012. Graptolite biozone correlation charts. Geological Magazine 149, 1, 124–132. DOI:10.1017/S0016756811000513
Urbanek, A., Radzewičius, S., Kozlowska, A. & Teller, L. 2012. Phyletic evolution and iterative speciation in the persistent Pristiograptus dubius lineage. Acta Palaeontologica Polonica 57, 3, 589-611. DOI:10.4202/app.2010.0070
Vento, B. A., Toro, B. A. & Maletz, J. 2012. New insights into the paleobiogeography of the Early Ordovician graptolite fauna of northwestern Argentina. Comptes Rendus Palevol 11, 5, 345-355. DOI:10.1016/j.crpv.2012.02.002
Paškevičius, J., Klimantavičius, V. & Radzevičius, S. 2012. Lithostratigraphy, graptolites and brachiopods communities of the Ludlow (Silurian) of the Eastern slope of the Baltic Syneclise. Geologija 54, 3, 75-88. DOI:10.6001/geologija.v54i3.2515
Maletz, J. 2011. The identity of the Ordovician (Darriwillian) graptolite Fucoides dentatus Brogniart, 1828. Palaeontology 54, 4, 851-865. DOI:10.1111/j.1475-4983.2011.01068.x
Maletz, J., Egenhoff, S., Böhme, M., Asch, R., Borowski, K., Höntzsch, S., Kirsch, M. & Werner, M. 2011. A tale of both sides of Iapetus - upper Darriwilian (Ordovician) graptolite faunal dynamics on the edges of two continents. Canadian Journal of Earth Sciences 48, 5, 841-859. DOI:10.1139/e10-105
Maletz, J. 2011. Scandinavian Isograptids (Graptolithina, Isograptidae): Biostratigraphy and Taxonomy. Proceedings of the Yorkshire Geological Society 58, 4, 267-280. DOI:10.1144/pygs.58.4.295
Maletz, J. 2011. The proximal development of the Middle Ordovician graptolite Skanegraptus janus from the Krappegrup drill core of Scania, Sweden. GFF 133, 1-2, 49-56. DOI:10.1080/11035897.2011.564293
Pärnaste, H. & Popp, A. 2011. First record of Telephina (Trilobita) from the Ordovician of northeastern Estonia and its stratigraphical implications. Estonian Journal of Earth Sciences 60, 2, 83-90. DOI:10.3176/earth.2011.2.02
Loydell, D. K., Nestor, V. & Männik, P. 2010. Integrated biostratigraphy of the lower Silurian of the Kolka-54 core, Latvia. Geological Magazine 147, 2, 253-280. DOI:10.1017/S0016756809990574
Maletz, J. 2010. Xiphograptus and the evolution of virgella-bearing graptoloids. Palaeontology 53, 2, 415-439. DOI:10.1111/j.1475-4983.2010.00940.x
Maletz, J., Egenhoff, S. & Alonso, R. 2010. The Upper Tremadocian (Ordovician) graptolite Bryograptus: taxonomy, biostratigraphy and biogeography. Palaeontology 53, 1, 59-75. DOI:10.1111/j.1475-4983.2009.00920.x
Mitchell, C. E., Maletz, J. & Goldman, D. 2009. What is Diplograptus?. Bulletin of Geosciences 84, 1, 27-34. DOI:10.3140/bull.geosci.1109
Loydell, D. K. & Maletz, J. 2009. Isolated graptolites from the Lituigraptus convolutus biozone (Silurian, Llandovery) of Dalarna, Sweden. Palaeontology 52, 2, 273-296. DOI:10.1111/j.1475-4983.2008.00843.x
Suyarkova, A. A. & Koren, T. N. 2009. Advances in the Ordovician graptolite biostratigraphy of the St Petersburg area, Russia. Estonian Journal of Earth Sciences 58, 1, 3-9. DOI:10.313176/earth.2009.1.01
Egenhoff, S. & Maletz, J. 2007. Graptolites as indicators of maximum flooding surfaces in monotonous deep-water self successions. Palaios 22, 4, 373-383. DOI:10.2110/palo.2005.p05-096r
Nõlvak, J. & Goldman, D. 2007. Biostratigraphy and taxonomy of three-dimensionally preserved nemagraptids from the Middle and Upper Ordovician of Baltoscandia. Journal of Paleontology 2007, 2, 254-260. DOI:10.1666/0022-3360(2007)81[254:BATOTP]2.0.CO;2
Loydell, D. K. & Nestor, V. 2006. Isolated graptolites from the Telychian (Upper Llandovery, Silurian) of Latvia and Estonia. Palaeontology 49, 3, 585-619. DOI:10.1111/j.1475-4983.2006.00550.x
Radzevičius, S. 2006. Late Wenlock biostratigraphy and the Pristiograptus virbalensis group (Graptolithina) in Lithuania and the Holy Cross Mountains. Geological Quarterly 50, 3, 333-344.
Loydell, D. K. & Jeppsson, L. 2006. Graptolites from the Lower and Upper Visby formations of NW Gotland. GFF 128, 2, 159-160. DOI:10.1080/11035890601282159
Maletz, J. 2005. Early Middle Ordovician graptolite biostratigraphy of the Lovisefred and Albjära drill cores (Scania, southern Sweden). Palaeontology 48, 4, 763-780. DOI:10.1111/j.1475-4983.2005.00482.x
Maletz, J. & Egenhoff, S. O. 2005. Dendroid graptolites in the Elnes Formation (Middle Ordovician), Oslo Region, Norway. Norwegian Journal of Geology 85, 3, 217-221.
Loydell, D. K. & Nestor, V. 2005. Integrated graptolite and chitinozoan biostratigraphy of the upper Telychian (Llandovery, Silurian) of the Ventspils D-3 core, Latvia. Geological Magazine 142, 4, 369-376. DOI:10.1017/S0016756805000531
Loydell, D. K. & Maletz, J. 2004. The Silurian graptolite genera Streptograptus and Pseudostreptograptus. Journal of Systematic Palaeontology 2, 2, 65-93. DOI:10.1017/S1477201904001117
Nõlvak, J. & Goldman, D. 2004. Distribution of Nemagraptus in the East Baltic Ordovician. WOGOGOB-2004. Conference Materials. Abstracts and Field Guide Book. Eds: Hints, O. & Ainsaar, L., pp. 75-76.
Bergström, S. M., Löfgren, A. & Maletz, J. 2004. The GSSP of the Second (Upper) Stage of the Lower Ordovician Series: Diabasbrottet at Hunneberg, Province of Västergötland, Southwestern Sweden. Episodes 27, 4, 265-272.
Loydell, D., Männik, P. & Nestor, V. 2003. Integrated biostratigraphy of the lower Silurian of the Aizpute-41 core, Latvia. Geological Magazine 140, 2, 205-229. DOI:10.1017/S0016756802007264
Heinsalu, H., Kaljo, D., Kurvits, T. & Viira, V. 2003. The stratotype of the Orasoja Member (Tremadocian, Northeast Estonia): lithology, mineralogy, and biostratigraphy. Proceedings of the Estonian Academy of Sciences. Geology 52, 3, 135-154.
Pålsson, C. 2002. Upper Ordovician graptolites and biostratigraphy of the Röstånga 1 core, Scania, S. Sweden. DGF 49, 9-23.
Kozlowska-Dawidziuk, A. 2002. Agastograptus, a synonym of Plectograptus (Retiolitidae, Graptolithina). Acta Palaeontologica Polonica 47, 3, 459-467.
Pålsson, C. 2001. Graptolites from the Upper Ordovician Dicranograptus clingani Zone at Järrestad, Scania, southern Sweden. GFF 123, 4, 217-224. DOI:10.1080/11035890101234217
Mierzejewski, P. 2001. A new graptolite, intermediate between the Tuboidea and the Camaroidea . Acta Palaeontologica Polonica 46, 3, 367-376.
Tolmacheva, T. J., Koren, T. N., Holmer, L. E., Popov, L. E. & Raevskaya, E. 2001. The Hunneberg Stage (Ordovician) in the area east of St. Petersburg, north-western Russia . Paläontologische Zeitschrift 74, 4, 543-561. DOI:10.1007/BF02988161
Radzevičius, S. & Paškevičius, J. 2000. Pristiograptids (Graptoloidea) and their adaptive types of the Wenlock (Silurian) in Lithuania. Geologija 32, , 88-109.
Mierzejewski, P. 2000. An aberrant encrusting graptolite from the Ordovician of Estonia. Acta Palaeontologica Polonica 45, 3, 239-250.
Loydell, D. K., Kaljo, D. & Männik, P. 1998. Integrated biostratigraphy of the lower Silurian of the Ohesaare core, Saaremaa, Estonia. Geological Magazine 135, 6, 769-783. DOI:10.1017/S0016756898001423
Cooper R. A., Maletz, J., Haifeng, W. & Erdtmann, B.-D. 1998. Taxonomy and evolution of earliest Ordovician graptoloids. Norsk Geologisk Tidsskrift 78, 1, 3-32.
Maletz, J. 1997. Graptolites from the Nicholsonograptus fasciculatus and Pterograptus elegans Zones (Abereiddian, Ordovician) of the Oslo Region, Norway. Greifswalder Geowissenschaftliche Beiträge 4, 5-98.
Urbanek, A. 1997. Late Ludfordian and early Přidoli monograptids from the Polish Lowland. . Palaeontologia Polonica 56, 87-231.
Raukas, A. & Teedumäe, A. (eds) 1997. Geology and Mineral Resources of Estonia.
Koren, T. & Bjerreskov, M. 1997. Early Llandovery monograptids from Bornholm and the southern Urals: taxonomy and evolution. DGF 44, 1-43.
Maletz, J. 1996. The identity of Didymograptus (Expansograptus) suecicus (Tullberg) and related species (Graptoloidea, Dichograptidae). Paläontologische Zeitschrift 70, 1/2, 203-212. DOI:10.1007/BF02988278
Maletz, J. 1995. The Middle Ordovician (Llanvirn) graptolite succession of the Albjära core (Scania, Sweden) and its implication for a revised biozonation. Zeitschrift für Geologische Wissenschaften 23, 3, 249-259.
Jaanusson, V. 1995. Confacies differentiation and upper Middle Ordovician correlation in the Baltoscandian basin. Proceedings of the Estonian Academy of Sciences. Geology 44, 2, 73-86.
Kozlowska-Dawidziuk, A. 1995. Silurian retiolitids of the East European Platform. Acta Palaeontologica Polonica 40, , 261-326.
Mitchell, C. E. & Maletz, J. 1995. Proposal for adoption of the base of the Undulograptus austrodendatus Biozone as a global Ordovician stage and series boundary level. Lethaia 28, 4, 317-331. DOI:10.1111/j.1502-3931.1995.tb01822.x
Lindholm, K. 1991. Ordovician graptolites from the Early Hunneberg of southern Scandinavia. Palaeontology 34, 2, 283-327.
Kozlowska-Dawidziuk, A. 1991. Agastograptus from the Mulde beds of Gotland. Acta Palaeontologica Polonica 36, 2, 143-149.
Beckly, A. J. & Maletz, J. 1991. The Ordovician graptolites Azygograptus and Jishougraptus in Scandinavia and Britain. Palaeontology 34, 4, 887-925.
Bassett, M. G., Kaljo, D. & Teller, L. 1989. The Baltic region. National Museum of Wales, Geological Series 9, 158-170. A Global Standard for the Silurian System. Eds: Holland, C. H. & Bassett, M. G. , pp. 158-170.
Kaljo, D., Heinsalu, H., Mens, K., Puura, I. & Viira, V. 1988. Cambrian-Ordovician Boundary beds at Tõnismägi, Tallinn, North Estonia.. Geological Magazine 125, 4, 457-463. DOI:10.1017/S001675680001308X
Maletz, J. & Erdtmann, B.-D. 1987. Adelograptus tenellus (Linnarsson 1871): its astogenetic development and its stratigraphical and palaeogeographical distribution. DGF 35, 179-190.
Obut, A. M. & Sennikov, N. V. 1987. Oepikograptus, a pecuilar genus of Middle Ordovician diplograptids (graptolites). Yearbook of All-Union Paleontological Society XXX, 192-198.
Erdtmann, B.-D., Maletz, J. & Gutierrez Marco, J. C. 1987. The new Early Ordovician (Hunneberg Stage) graptolite genus Paradelograptus (Kinnegraptidae), its phylogeny and biostratigraphy. Paläontologische Zeitschrift 61, 1/2, 109-131. DOI:10.1007/BF02985945
Ulst, R. 1986. Features of the structure proksimpli some Llandovery graptolites Latvia. Biofacies and fauna of the Silurian and Devonian basins of the Baltic. Ed: Brangulis, A., pp. 22-24.
Kaljo, D., Borovko, N., Heinsalu, H. Khazanovich, K., Mens, K., Popov, L., Sergejeva, S., & Sobolevskaja, R. 1986. The Cambrian-Ordovician boundary in the Baltic-Ladoga clint area (North Estonia and Leningrad Region, USSR). Proceedings of the Academy of Sciences of the Estonian SSR. Geology 35, 3, 97-108.
Mierzejewski, P. 1986. Ultrastructure, taxonomy and affinities of some Ordovician and Silurian organic microfossils. Palaeontologia Polonica 47, 129-220.
Mierzejewski, P. 1985. New aberrant sessile graptolites from glacial boulders. Acta Palaeontologica Polonica 30, 3-4, 191-199.
Finney, S. C. 1985. Paired pleural disks in Dicaulograptus cumdiscus n. sp.. Lethaia 18, 4, 361-368. DOI:10.1111/j.1502-3931.1985.tb00717.x
Kaljo, D., Paškevičius, J. & Ulst, R. 1984. Graptolite zones of the East Baltic Silurian. Early Paleozoic stratigraphy of the Baltic. Eds: Männil, R. & Mens, K., pp. 94-118.
Ulst, R. Ž., Gailite, L. K. & Springis, T. K. 1984. Lithostratigraphic subdivision of the subsurface Ordovician rocks of the Jelgeva Depression. Early Paleozoic stratigraphy of the Baltic. Eds: Männil, R. & Mens, K., pp. 63-76.
Howe, M. P. A. 1982. The Lower Silurian graptolites of the Oslo region. Field Meeting, Oslo Region, 1982, pp. 21-32.
Obut, A. M. & Sennikov, N. V. 1981. Polygonograptidae familia nova (systematics, stratigraphic and geographic distribution). Paleozoic West Siberian Plain and its mountain frame, pp. 75-81.
Urbanek, A. 1979. Sabellidites. Upper Precambrian and Cambrian Paleontology of East-European Platform, pp. 87-92.
Paškevičius, J. 1979. Biostratigraphy and Graptolites of the Lithuanian Silurian.
Mierzejewski, P. 1978. Tuboid graptolites from erratic boulders of Poland. Acta Palaeontologica Polonica 23, 4, 557-574.
Kaljo, D. L. & Kivimägi, E. K. 1976. Zonal stratigraphy of the Estonian Tremadocian. Кальо Д. Л. & Корень Т. Н. (рeд.) Граптолиты и стратиграфия, pp. 56-63.
Tzaj, D. T. 1976. Middle Ordovician Graptolites of Kazakstan.
Tsegelnjuk, P. D. 1976. Late Silurian and Early Devonian monograptids from the south-western margin of the East-European platform. Upper Precambrian and Lower Paleozoic paleontology and stratigraphy of the south-western part of the East European Platform, pp. 91-133.
Paškevičius, J. 1976. On some new Llandoverian diplograptids of the Eastern Baltic. Graptolites and Stratigraphy, pp. 140-151.
Männil, Ralf 1976. Distribution of graptoloids in the Ordovician carbonate rocks of the East Baltic area. Graptolites and Stratigraphy, pp. 105-118.
Ulst, R. 1975. Graptolites from Upper Ordovician Fjäcka Member of Middle Baltic. The Fauna and Stratigraphy of Paleozoic and Mesozoic of Baltic and Byelorussia, pp. 69-84.
Kaljo, D. 1974. On graptolite zones of Tremadoc and Arenig of Pribaltic and Moscow syneclises. Graptolites of the USSR, pp. 31-36.
Ulst, R. Ž. 1974. The early sequence of Pristiograpts in conterminous deposits of Wenlock and Ludlow of the Middle Pribaltic. Graptolites of the USSR, pp. 105-122.
Paškevičius, J. 1974. Graptolites and zonal dismemberment of Ludlow deposits in Pribaltic. Graptolites of the USSR, pp. 122-134.
Bergström, S. M. 1973. Correlation of the late Lasnamägian Stage (Middle Ordovician) with the graptolite succession. GFF 95, 1, 9-18. DOI:10.1080/11035897309455420
Paškevičius, J. 1973. Biostratigraphy, correlation and graptolites of the Ordovician and Silurian deposites of the South East Baltic. kand töö autoreferaat, pp. 1-63.
Kaljo, D. (ed) 1970. The Silurian of Estonia.
Urbanek, A. 1970. Neocucullograptinae n. subfam. (Graptolithina)- their evolutionary and stratigraphic bearing . Acta Palaeontologica Polonica 15, 2-3, 164-388.
Rõõmusoks, A. 1970. Stratigraphy of the Viruan Series (Middle Ordovician) in Northern Estonia, I.
Kaljo, D. & Vingisaar, P. 1969. On the sequence of the Raikküla stage in southernmoust Estonia. Proceedings of the Academy of Sciences of the Estonian SSR. Chemistry and Geology 18, 3, 270-277.
Krandijevsky, V. S. 1968. Silurian graptolites of the Volyno-Podolia.. Paleontology and Stratigraphy of the Lower Paleozoic of Volyn-Podola, pp. 26-62.
Gailite, L. K., Rybnikova, M. V., Ulst, R. Ž. 1967. Stratigraphy, fauna and conditions of formation of the Silurian rocks of the Central Baltic.
Bulman, O. M. B. & Rickards, R. B. 1966. A Revision of Wiman's Dendroid and Tuboid Graptolites. Bulletin of Geol. Institutions of the Univ. of Uppsala 43, 6-8, 1-72.
Urbanek, A. 1966. On the morphology and evolution of the Cucullograptinae (Monograptidae, Graptolithina). Acta Palaeontologica Polonica 11, 3-4, 292-544.
Obut, A. M. & Sobolevskaya, R. F. 1966. Early Silurian graptolites from Kazakhstan..
Jaanusson, V. 1965. Two multiramous graptoloids from the Lower Didymograptus Shale of Scandinavia. GFF 86, 4, 413-432. DOI:10.1080/11035897.1965.9626393
Skevington, D. 1965. Graptolites from the Ontikan Limestones (Ordovician) of Öland, Sweden. II. Graptoloidea and Graptovermida.. Bulletin of the Geological Institutions of the University of Uppsala 43, 1-74.
Jaanusson, V. & Skoglund, R. 1963. Graptoloids from the Viruan (Ordovician) Dalby and Skagen Limestones of Västergötland. GFF 85, 3, 341-357. DOI:10.1080/11035896309452966
Bulman, O. M. B. 1963. On Glyptograptus dentatus (Brongniart) and some allied species. Palaeontology 6, 4, 665-689.
Obut, A. M. 1960. Correlation of some parts of Estonian Ordovician and Silurian deposits according to graptolites. Trudy Instituta geologii AN ESSR 5, 143-157. Eesti NSV Teaduste Akadeemia Geoloogia Instituudi Uurimused V, pp. 143-157.
Obut, A. & Rytzk, G. 1958. Ordovician and Silurian Dendroidea of Estonia. Trudy Instituta geologii AN ESSR 3, 125-143. Eesti NSV Teaduste Akadeemia Geoloogia Instituudi Uurimused III, pp. 125-143.
Öpik, A. 1930. Beiträge zur Kenntnis der Kukruse-(C2-C3-)Stufe in Eesti. IV. Tartu Ülikooli Geoloogia Instituudi Toimetused 24, 1-34.
Öpik, A. 1928. Beiträge zur Kenntnis der Kukruse-(C2-C3-)Stufe in Eesti. III. Tartu Ülikooli Geoloogia Instituudi Toimetused 12, 1-42.
Schmidt, Fr. 1858. Untersuchungen über die silurische Formation von Ehstland, Nord-Livland und Oesel. Archiv für die Naturkunde Liv-, Ehst- und Kurlands ser 1, bd 2, 1-250.