によるとそれは4節のうち最終1節を尾節の一部と誤解釈したからである。 ^ a b c d e f g h i j k l m n o p q r s Rudkin, David M.; Young, Graham A.; Nowlan, Godfrey S. (2008). “The Oldest Horseshoe
org/CorpusID:133579650. "Corpus ID: 133579650" ^ Caron, Jean-Bernard; Rudkin, David M; Milliken, Stuart (2004). “A new Late Silurian (Pridolian) naraoiid
the_Lower_Devonian_Hunsruck_Slate_of_Germany. ^ Waddington, Janet; Rudkin, David M.; Dunlop, Jason A. (2015-01-31). “A new mid-Silurian aquatic scorpion—one
1130/G25513A.1. ISSN 0091-7613. https://doi.org/10.1130/G25513A.1. ^ a b Rudkin, David M.; Young, Graham A.; Elias, Robert J.; Dobrzanski, Edward P. (2003-01)
ISSN 1502-3931. https://onlinelibrary.wiley.com/doi/abs/10.1111/let.12104. ^ Rudkin, David M. (2011-02-08). “Exoskeletal abnormalities in four trilobites” (英語)