Data from: Review of Early Triassic Thylacocephala

Measurements for Early Triassic Thylacocephala from Madagascar (Dienerian/Smithian), Idaho &amp; Nevada including specimens of <em>Ankitokazocaris acutirostris</em> (7 specimens), <em>Ankitokazocaris triassica</em> (6 specimens), <em>Ligulacaris parisiana</em> (7 specimens) and <em>Paraostenia ambatolokobensis </em>(3 specimens). Script for descriptive statistics is also provided. Measurements were directly done on digital photographs with ImageJ2. When part and counter-part were available, measurements were done on both sides and then averaged.