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Middle Jurassic (Bajocian) Eastern Oregon

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PLATE 29<br />

[All figures are natural size. Specimens shown in figs. 1- 4 and 8-14 arc from the lower exposed part of the Snowshoe Formation<br />

near Seneca. Those shown in flgs. 5-7 are from the Warm Springs Member of the Snowshoe Formation]<br />

FIGURES 1-4. Dorsetensia oregonensis Imlay, n. sp. (p. 72).<br />

All specimens arc from Lupher's loc. 272.<br />

1. Paratypc, CAS 13435.<br />

2. Rubber imprint of external mold of paratype, CAS 13434.<br />

3. Rubber imprint of external mold of paratype, CAS 13433.<br />

4. Rubber imprint of external mold of holotype, CAS 13432.<br />

5, 6. Dorsetensia cf. D. complanata Buckman (p. 72).<br />

External molds, USNM 168537 a, b from USGS Mesozoic Joe. 29396.<br />

7. Dorsetensia cf. D. subtexta Buckman (p. 71).<br />

Specimen, USNM 168536 from USGS Mesozoic Joe. 29239. See other<br />

views on pl. 28, figs. 1, 2.<br />

8-14. Dorsetensia diversistriata Imlay, n. sp. (p. 73).<br />

All specimens are from Lupher's Joe. 57.<br />

8. Rubber imprint of external mold of paratype, CAS 13440.<br />

9, 11. Rubber imprint of external mold of paratype, CAS 13438.<br />

10. Paratype, CAS 13441.<br />

12. Rubber imprint of external mold of paratype, CAS 13437.<br />

13. Paratype, CAS 13439.<br />

14. Rubber imprint of external mold of holotype, CAS 13436.

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