Family

Illaenidae Hawle et Corda, 1847

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

Melnikov, S. A. 1995. New trilobites from the Lower/Middle Ordovician boundary Deposits in Leningrad oblast. Paleontologicheski Zhurnal 4, 131-135.

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.

Volborth, A. 1864. Über einige neue ehstländische Illaenen. Mémoires de l´Académie Impériale des Sciences de St.-Petersbourg 8, 9, 1-11.

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.

Dalman, J. W. 1827. Om Palaeaderna, eller de så kallade Trilobiterna. Kungliga Svenska Vetenskapsakademiens Handlingar 1826, 2, 113–152, 226–294.

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. Dysplanus acutigenia Jaanusson, 1957 | Saka Substage→Langevoja Substage

2. Dysplanus babinoensis Melnikov, 1995

3. Dysplanus centrotus (Dalman, 1827) | Hunderum Substage

4. Illaenus aduncus Jaanusson, 1957 | Valaste Substage→Aluoja Substage

5. Illaenus ariensis Holm, 1886 | Ordovician

6. Illaenus atavus Eichwald, 1858 | Aseri Stage→Uhaku Stage

7. Illaenus brevispina (Krylov, 2010) | Lasnamägi Stage→Uhaku Stage

8. Illaenus chiron Holm, 1883

9. Illaenus chudleighensis Holm, 1886 | Kunda Stage

10. Illaenus crassicauda Wahlenberg, 1821

11. Illaenus dalmani Volborth, 1863 | Kunda Stage→Uhaku Stage

12. Illaenus excellens Holm, 1886 | Aseri Stage

13. Illaenus fornicatus Nielsen, 1995 | Langevoja Substage→Hunderum Substage

14. Illaenus gigas Holm, 1883

15. Illaenus glabriusculus Jaanusson, 1957 | Aluoja Substage

16. Illaenus incisus Jaanusson, 1957 | Hunderum Substage→Valaste Substage

17. Illaenus intermedius Holm, 1886 | Lasnamägi Stage

18. Illaenus jevensis Holm, 1886 | Sandbian

19. Illaenus kuckersianus Holm, 1886 | Sandbian

20. Illaenus laticlavius Eichwald, 1860 | Valaste Substage→Kunda Stage

Classification

Organism group	Biota
Kingdom	Animalia
Phylum	Arthropoda
Subphylum	Trilobita
Order	Corynexochida
Suborder	Illaenina
Family	Illaenidae
Genus	Bumastoides
	Dysplanus
	Illaenus
	Parillaenus
	Platillaenus
	Stenopareia
Family	Panderiidae
	Phillipsinellidae
	Styginidae