Trilobita
Genus

Illaenus Dalman, 1827

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Selection of related publications
Vinn, O., Ernst, A., Toom, U., Isakar, M. 2018. Cryptic encrusting fauna inside invertebrate fossils from the Ordovician of Estonia. Annales Societatis Geologorum Poloniae 88, 3, 285-290. DOI:10.14241/asgp.2018.008
Pärnaste, H., Bergström, J., Zhou, Z.-Y. 2013. High-resolution trilobite stratigraphy of the Lower-Middle Ordovician Öland Series of Baltoscandia. Geological Magazine 150, 3, 509–518. DOI:10.1017/S0016756812000908
Nielsen, A. 1995. Trilobite systematics, biostratigraphy and palaeoecology of the Lower Ordovician Komstad Limestone and Huk Formations, southern Scandinavia. Fossils and Strata 38, 1-374. DOI:10.18261/8200376583-1995-01
Jaanusson, V. 1957. Unterordovizische Illaeniden aus Skandinavien. Mit Bemerkungen über die Korrelation des Unterordoviziums. Bulletin of the Geological Institutions of the University of Uppsala 37, 79–165.
Thorslund, P. 1940. On the Chasmops series of Jämtland and Södermanland (Tvären). Sveriges Geologiska Undersökning 1-191.
Öpik, A. 1937. Trilobiten aus Estland. Tartu Ülikooli Geoloogia Instituudi Toimetused 52, 1-163.
Siegfried, P. 1936. Über das Pandersche Organ bei den Asaphiden des ostbaltischen Ordoviciums. Eesti Loodusteaduse Arhiiv XI, 2, 1-42.
Öpik, A. 1927. Beiträge zur Kenntnis der Kukruse-(C2-) Stufe in Eesti. II. Tartu Ülikooli Geoloogia Instituudi Toimetused 10, 1-35.
Holm, G. 1886. Die ostbaltischen Illaeniden.Revision der ostbaltischen Trilobiten. Abt. III. Illaeniden , pp. 1–173.
Eichwald, E. 1858. Beitrag zur geographischen Verbreitung der fossilen Thiere Russlands. Alte Periode (Fortsetzung. S. Bulletin 1851. N 1. pag. 192). Klasse der Krustazeen. Klasse der Fische. Klasse der Reptilen. Bulletin of the Moscow Society of Naturalists. Geological series 30, IV, 305-354.
Nieszkowski, J. 1857. Versuch einer Monographie der in den silurischen Schichten der Ostseeprovinzen vorkommenden Trilobiten. Archiv für die Naturkunde Liv-, Ehst- und Kurlands 1, 3, 517-626.
Eichwald, E. von 1825. Geognostico-zoologicae per Ingriam marisque Baltici provincias; nec non de Trilobitis observationes. pp. 1-58. Typis Universitatis Caesareis.
List of species
1. Illaenus aduncus Jaanusson, 1957 | Valaste SubstageAluoja Substage
3. Illaenus atavus Eichwald, 1858 | Aseri StageUhaku Stage
4. Illaenus brevispina (Krylov, 2010) | Lasnamägi StageUhaku Stage
8. Illaenus dalmani Volborth, 1863 | Kunda StageUhaku Stage
10. Illaenus fornicatus Nielsen, 1995 | Langevoja SubstageHunderum Substage
13. Illaenus incisus Jaanusson, 1957 | Hunderum SubstageValaste Substage
14. Illaenus intermedius Holm, 1886 | Lasnamägi Stage
17. Illaenus laticlavius Eichwald, 1860 | Valaste SubstageKunda Stage
19. Illaenus oculosus Holm, 1886 | Aseri StageUhaku Stage
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References based on distribution