WAHLENBERG  (1818)

 

Wahlenberg, G.  1818 (dated 1821).  Petrificata telluris Svecanae.  Nova Acta RegiŠ Societatis Scientiarvm Vpsaliensis 8: 1-116, 293-296, pls. 1-4, 7.

 


 

 


 

Entomostracites paradoxissimus [= Paradoxides paradoxissimus (Wahlenberg, 1818)] (Trilobita, Polymerida, Paradoxididae) - this is plate 1, figure 1 & described on pp. 34-37.  The illustration is a composite from two syntype specimens (RM Ar. 46147, Paleozoological Department of the Swedish Museum of Natural History, Stockholm, Sweden) from the Alum Shale Formation (Middle Cambrian) at Oltorp, Vństerg÷tland, Sweden.  This is the type species of Paradoxides.

Original diagnosis: caecus, capite semilunari munito eornibus validis retrorsum exeuntibus, fronte turbinata annulata, cauda spinis trunci postremis triplo breviore.

 


 

Entomostracites scarabŠoides [= Peltura scarabaeoides (Wahlenberg, 1818)] (Trilobita, Polymerida, Olenidae) - this is plate 1, figure 2 & described on pp. 41-42.  This is the type species of Peltura and comes from the Alum Shale Formation (Upper Cambrian) of Sweden.

Original diagnosis: caecus, capite hemisphaerico antice rotundato, fronte subovata antrorsum angustiore, cauda utrinque sinuata-tridentata.

 


 

Entomostracites spinulosus [= Parabolina spinulosa (Wahlenberg, 1818)] (Trilobita, Polymerida, Olenidae) - this is plate 1, figure 3 & described on pp. 38-39.  This is the holotype specimen (UPM Sk. 1, University of Uppsala Palaeontological Museum, Uppsala, Sweden).  This is the type species of Parabolina and comes from the Alum Shale Formation (Upper Cambrian) of Sweden.

Original diagnosis: caecus, capite late semilunari: angulis posticis spinulosis; fronte oblonga convexissima, cauda rotundata spinulis trunci postremis breviore.

 


 

Entomostracites gibbosus [= Olenus gibbosus (Wahlenberg, 1818)] (Trilobite, Polymerida, Olenidae) - this is plate 1, figure 4 & described on pp. 37-38.  This is the holotype specimen (UPM Sk. 2, University of Uppsala Palaeontological Museum, Uppsala, Sweden).  This is the type species of Olenus and comes from the Alum Shale Formation (Upper Cambrian) of Sweden.

Original diagnosis: caecus, capite antice truncato planiusculo, fronte oblonga jugoque dorsali gibboso, cauda triangulari untrinque bidentata.

 


 

Entomostracites pisiformis [= Agnostus pisiformis (Wahlenberg, 1818), although this species was first named by Linnaeus (1768)] (Trilobita, Agnostida, Agnostidae) - this is plate 1, figure 5 (originally inverted) & described on pp. 42-43.  Of these two syntype spcimens (UPM Vg. 819, University of Uppsala Palaeontological Museum, Uppsala, Sweden), the cephalon has been designated as lectotype.

This is the type species of Agnostus and comes from the Alum Shale Formation (Upper Cambrian) of Sweden.

Original diagnosis: caecus hemisphaericus marginatus; fronte teretiuscula.

 


 

Entomostracites bucephalus [= Paradoxides paradoxissimus? (Wahlenberg, 1818)] (Trilobita, Polymerida, Paradoxididae) - this is plate 1, figure 6 & described on pp. 38-39.  This specimen (UPM Sk. 3, University of Uppsala Palaeontological Museum, Uppsala, Sweden) appears to be the labrum (hypostome) of a paradoxidid trilobite.

Original diagnosis: caecus, capite late semilunari: angulis posticis spinulosis; fronte oblonga convexissima, cauda rotundata spinulis trunci postremis breviore.

 


 

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