﻿Pennaia 
  pauliana 
  Clarke 
  

  

  Fig. 
  i, 
  2 
  Cephala 
  

  

  3 
  A 
  pygidium 
  with 
  two 
  thoracic 
  segments 
  attached, 
  x 
  3 
  

  

  4 
  The 
  thorax 
  and 
  pygidium, 
  showing 
  the 
  rounded 
  ends 
  

  

  of 
  the 
  anterior 
  thoracic 
  segments 
  and 
  3 
  lappets 
  of 
  

   the 
  pygidium 
  

  

  5 
  A 
  nearly 
  entire 
  individual 
  restored 
  

  

  6 
  Thorax 
  and 
  pygidium 
  of 
  an 
  incomplete 
  specimen 
  

   Locality: 
  Ponta 
  Grossa, 
  Sao 
  Paulo, 
  Brazil 
  

  

  Calmonia 
  signifer 
  Clarke 
  

  

  (.See 
  plate 
  9) 
  

  

  Fig. 
  7 
  Cephalon 
  restored, 
  showing 
  style 
  and 
  position 
  of 
  the 
  

   eyes 
  and 
  the 
  small 
  cheek 
  spine 
  

  

  8 
  Anterior 
  structure 
  of 
  the 
  head 
  showing 
  the 
  short 
  apical 
  

  

  projection 
  which 
  is 
  often 
  obscured 
  

  

  9 
  Internal 
  cast 
  of 
  thorax 
  and 
  pygidium 
  

   10, 
  11 
  Pygidia 
  with 
  terminal 
  spines 
  

  

  Locality: 
  Ponta 
  Grossa, 
  Sao 
  Paulo, 
  Brazil 
  

  

  t 
  5 
  6 
  

  

  