The trilobites of the Leptaena limestone in Dalarne: with a discussion of the zoological position and the classification of the Trilobita

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Almqvist & Wiksells boktryckeri-a.-b., 1925 - Nature - 446 pages
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Contents

Preface
1
Classification of the Trilobita
18
Description of Genera and Species
79
Family Asaphidae Burme1ster
92
Illanus Wirnani n sp
105
Illanus oviformis n sp
123
Planus sp ind c
138
Family Holotrachelidae n fam
147
Acidaspis evoluta TOrnqu1st
238
Acidaspis sp ind a
252
Plytylichas Wegelini Holm in Mus
273
Platyl1chas angulatus n sp
286
Lichas affinis Angel1n
302
Amphilichas Wahlenbergi n sp
315
Amphilichas piriformis n sp
329
Cybcle brevicauda Angel1n
337

Family Calymenidae M1lneEdwards
155
Pharostoma obtusa McCoy 423
161
Proetus modestus TOrnqu1st
167
Proetus kullsbergensis n sp
173
Proetus sp ind a
180
Genus Isbergia n gen
186
Cyphaspis Holmi n sp
193
Tornquistia Nicholsoni Reed
199
Tornquistia cf dlpressa n sp
205
Family Harpedidae Corda
211
Harpes Wegelini Angel1n
224
Family Raphiophoridae Angel1n
225
Cheirurus punctatus Angel1n
347
Genus Ccraurus Green Raymond and Barton
354
Pseudosphcerexochus conformis Angel1n
360
IVicszko1vskiar sp ind
366
Pompeckia minor n sp
374
384
384
Genus Sphcerocoryphe Angel1n
390
Family Phacopidae Corda
396
Chasmops angulatus n sp
406
Illanus sp ind a 136
413
Bibliography
426
Explanation of Plates
435

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