Paraplacosauriops quercyi (Filhol, 1882)

Norell, Mark A., Gao, Ke-Qin & Conrad, Jack, 2007, A New Platynotan Lizard (Diapsida: Squamata) from the Late Cretaceous Gobi Desert (Ömnögov), Mongolia, American Museum Novitates 3605, pp. 1-24 : 19

Paraplacosauriops quercyi [Augé and Sullivan, 2006

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Placosaurus rugosus [Sullivan and Auge´, 2006]

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[new taxon]

Ovoo gurval [IGM 3_767]

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APPENDIX 2 NEW CHARACTER DESCRIPTIONS

Here we offer descriptions of the nine new characters used in this analysis. These are numbered for placement at the end of the matrix in Conrad (in press).

365. Midline contact of the otooccipitals: (0) absent; (1) present.

366. Splenial, dorsal contribution to Meckel’s canal: (0) absent; (1) present.

367. Crista circumfenestralis: (0) absent; (1) present; (2) present with posterior closure.

368. Forked posterior margin of the angular: (0) absent, (1) present.

369. Anterodorsal epicoracoid flange of the scapula (not an accessory scapular bar, but a crest): (0) absent; (1) present.

370. Margins of the lacrimal foramen: (0) shared between lacrimal and prefrontal; (1) within the lacrimal; (2) between the prefrontal and maxilla.

371. Anterolateral frontal flanges (if possessing a W-shaped nasofrontal suture): (0) short, not extending anteriorly as far as the midline part of the frontal; (1) subequal in anterior extension to the midline portion; (2) extending well anterior to the level of the midline portion.

372. Location of the fleshy, external nostril: (0) distally placed, near the anterior third of the snout; (1) placed in the middle 1/3 of the snout; (2) placed near the eye. Note that the character states for this character are somewhat subjectively defined, but the ‘‘bins’’ do describe observed morphology.

373. Prefrontal bones and postorbital arch arching toward each other: (0) absent; (1) present, approaching without contact; (2) contacting.