Figure F14. Juvenile ammonoid fossil (Sample 330-U1374A-3R-1A, 23–24 cm). A. Close-up photograph of Section 330-U1374A-3R-1A (Piece 1). Green and red rectangles indicate areas of B and C, respectively. B. Close-up photograph of convex-up bivalve, gastropod, and ammonoid shell fragments. C. Binocular photomicrograph of juvenile ammonoid in Sample 330-U1374A-3R-1, 24 cm. D. Binocular photomicrograph and trace lines of outer shell and septa of ammonoid fragment.
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