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Illaenidae
The Illaenidae are a family of trilobites in the order Corynexochida. 223 currently accepted species in 24 genera are known from the Ordovician. Some scholars include the Panderiidae in the Illaenidae, but this is not generally supported. Distribution ''Illaenus? priscus'' from Salair and ''Illaenus? berkutensis'' from the Malyi Karatau, Kazakhstan (both Lower Tremadocian), are both very poorly known and it remains uncertain to which family they could best be assigned. The first certain Illaenid is ''I. hinomotoensis'' from the Upper Tremadocian of North China and South Korea. The earliest species known from Laurentia (western Ireland) is ''I. weaveri'', probably latest Floian. These early occurrences are from the tropics, but during the Darriwilian the family spread over southern Gondwana, and became cosmopolitan for the remainder of the Ordovician, although most genera had limited distributions. The genus ''Stenopareia'' survived the Ordovician–Silurian extinction events an ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Thaleops
''Thaleops'' is an extinct genus of trilobite of the family Illaenidae. It lived from the Floian to the Katian of the Ordovician in what is now North America. ''Thaleops'' can be told apart from other illaenids because of the cheek spines that many species possess under their eyes. ''Thaleops'' had a large distribution range, With some species being found in parts of Canada to some U.S states including Oklahoma, Wisconsin, and New York. It is thought to have lived in shallow water, as a study published in Oklahoma found that deposits that contained ''Thaleops'' and the asaphid trilobite '' Bumastides'' contained 4 times as many trilobite genera, where associated with shallow water areas. Classification Classification of ''Thaleops'', ''Illaenus ''Illaenus'' is a genus of trilobites from Russia and Morocco, from the middle Ordovician The Ordovician ( ) is a geologic period and system, the second of six periods of the Paleozoic Era. The Ordovician spans 41.6 million yea ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ectillaenus
''Ectillaenus'' is a genus of trilobites in the order Corynexochida. These nektobenthic carnivores lived in the Ordovician period, from 478.6 to 449.5 Ma. Taxonomy Species include: *''Ectillaenus advena'' (Barrande, 1872) *''Ectillaenus benignensis'' (Novák in Perner, 1918) *''Ectillaenus holubi '' (Šnajdr, 1956) *''Ectillaenus katzeri'' (Barrande, 1872) *''Ectillaenus sarkaensis'' (Novák in Perner, 1918) Distribution Fossils of this genus have been found in the Ordovician sediments of Czech Republic, France, Morocco, Portugal, Spain and United Kingdom, as well as in the Arenig In geology, the Arenig (or Arenigian) is a time interval during the Ordovician period and also the suite of rocks which were deposited during this interval. History The term was first used by Adam Sedgwick in 1847 with reference to the "Areni ... of the United Kingdom. References Corynexochida genera Illaenina Ordovician trilobites Extinct animals of Europe {{Corynexochida-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Illaenus
''Illaenus'' is a genus of trilobites from Russia and Morocco, from the middle Ordovician. Species included in this genus can reach a length of about . They are without glabella and without articulation of the tail. The cephalon has a high profile and recurved genal spines. Eyes are distant from the axis of the head, situated nearer to the edge. Selected species This genus includes about 50 species: *''Illaenus alveatus'' Raymond 1925 *''Illaenus auriculatus'' Ross, Jr. & Barnes 1967 *''Illaenus bayfieldi'' Billings 1859 *''Illaenus bucculentus'' Whittington 1963 *'' Illaenus consimilis'' Billings 1865 *'' Illaenus consobrinus'' Billings 1865 *'' Illaenus crassicauda'' Wahlenberg 1826 *'' Illaenus fraternus'' Billings 1865 *''Illaenus gelasinus'' Whittington 1965 *''Illaenus lacertus'' Whittington 1954 *'' Illaenus marginalis'' Raymond 1925 *''Illaenus oscitatus'' Fortey 1980 *''Illaenus slancyensis'' Krylov 2016 *''Illaenus spiculatus'' Whittington 1963 *''Illaenus tauricornis' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rhodope (trilobite) '', a dotted border butterfly of tropical Africa commonly known as the Rhodope
{{disambiguation ...
Rhodope may refer to: * Rhodope (mythology), a figure of Greek mythology * Rhodope Mountains, in Bulgaria and Greece * Rhodope (regional unit), of Greece * Rhodope (province), a Roman and Byzantine province * 166 Rhodope, an asteroid * ''Rhodope'' (genus), a genus of the family Rhodopidae, order Rhodopemorpha, class Gastropoda * ''Mylothris rhodope ''Mylothris rhodope'', the common dotted border, Rhodope or tropical dotted border, is a butterfly in the family Pieridae. It is found in Sierra Leone, Liberia, Ivory Coast, Ghana, Togo, Nigeria, Cameroon, Equatorial Guinea, Bioko, the Republic o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Valdar Jaanusson
Valdar Jaanusson (1923–1999) was an Estonian-Swedish geologist. In 1960 he introduced the concept of topostratigraphy into Swedish stratigraphy. A recognized expert on the geology of the Ordovician period, he was member of the Estonian Academy of Sciences Founded in 1938, the Estonian Academy of Sciences ( et, Eesti Teaduste Akadeemia) is Estonia's national academy of science in Tallinn. As with other national academies, it is an independent group of well-known scientists whose stated aim is to .... Dagens Nyheter. References 1923 births 1999 deaths[...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |