Dunlop, Jason A.  <br/><br/>
Phalangiotarbid arachnids from the coal measures of Lancashire, UK 

 - 369-381pp.  Illustration 
<br/><br/> Four new specimens of phalangiotarbid (Arachnida: Phalangiotarbida) from the Upper Carboniferous (upper Westphalian A) of Westhoughton, Lancashire, UK, are referred to Mesotarbus peteri sp. nov. An additional Lancashire phalangiotarbid, Phalangiotarbus subovalis (Woodward, 1872), from the Upper Carboniferous (lower/middle Westphalian A) of Burnley, is redescribed and designated the neotype of this species. This material allows new interpretations of the opisthosomal segmentation and respiratory organs of phalangiotarbids, and a reconstruction of Mesotarbus peteri is presented. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Invertebrate paleontology<br/>Anthropoda - Arachnida<br/>Paleozoic<br/>Coal measure formation<br/>Carboniferous - Lancashire