A monograph of the Polish Oxfordian echinoids: Part 2, Subclass Euechinoidea Bronn, 1860

作者：Radwanska Urszula^*

来源：ACTA GEOLOGICA POLONICA, 2014, 64(3): 325-+.

DOI：10.2478/agp-2014-0017

• Euechinoidea
• Taxonomy
• Hemieiclar Trocho
• Upper Jurassic
• Poland

The non-cidaroid echinoids (subclass Euechinoidea Bronn. 1860) from the Oxfordian epicontinental sequence of Poland (Polish Jura, Holy Cross Mountains, Mid-Polish Anticlinorium) are assigned to the genera Hetnipedit7C1 Wright, 1855, Hem iciririhs L. Agassiz. 1838, Hetniiaris Pomel, 1883, Pseuriocalaris Etallon, 1859, SallnechIMIS Desor, 1856, EfICOSMUS L. Agassiz inAgaiz and Desor, 1846, Glypacus L. Agassiz, 1840, Plcurodiudeana de Loriol. 1870, Diploporila McCoy, 1848, Trochonara Lambert, 1901, Desorella Cotteau, 1855. and Heterociclaris Cotteau, 1860, plus one acropeltid taxon, and one taxon left in open nomenclature. <br xmlns:set="http://exslt.org/sets">Within the genus Hemicalmis L. Agassiz, 1838, the relationship between Hednicidueis nermedia (Fleming, 1828). Hemicidaeis ceenulaeis L. Agassiz, 1839 inon Lamarck, IleC Goldfussi and Hednicidueis quenvechi Merian, 1855, all with confused taxonomy, is discussed.
Based on test structure, the genera Polvdiudemu Lambert, 1883. and Tmchotiaia Lambert, 1901, of the family Fmiratiidae Ali, 1990, are proved to be separate; the common species mamillana of F.A. Roemer (1836) is a typical Trochonara.
An attention is paid to the morphology of the tiny, juvenile specimens. common in Eucosmus decoiyaus L. Agassiz in L. Agassiz and Desor, 1846, and in Picumdiridenui sitazi (Moesch, 1867),

• 出版日期2014