EARTH SCIENCES

Arachnata: Fortey and Theron (1994)

#NEXUS

BEGIN DATA;
DIMENSIONS NTAX=7 NCHAR=22;
FORMAT SYMBOLS="012" MISSING=? GAP=-;
OPTIONS MSTAXA=VARIABLE;
MATRIX
	Naraoia			02001 00011 00000 10?00 01
	Soomaspis		02001 00011 00000 11?00 11
	Agnostus		11211 10011 10100 10111 00
	Pagetia			11111 10110 11121 10111 00
	Trilobita (Olenoides)	10101 01110 11011 01002 10 
	Olenellus		10001 01010 11001 01002 00
	Tachypleus		00000 00000 00?00 00?00 00
	;
END;

• Fortey, R. A. and J. N. Theron (1994) A new Ordovician arthropod, Soomaspis, and the agnostid problem. Palaeontology 37, 841-861.
• Accession Number: 000049
• Submitted by: Trevor J. Cotton