| Summary: | FIGURE 4. Examples of rare, scientifically significant specimens collected from challenging Purisima Formation exposures in Santa Cruz, California, by amateur collectors. A) Globicephaline dolphin periotic, UCMP 219487, collected by S. Jarocki; B) alcid bird humerus, UCMP 168879, collected by S. Jarocki; C) sulid (Morus sp.) bird skull, UCMP 119463, collected by G. Macy; D) lipotid dolphin skull (Parapontoporia sp.), UCMP 219673, collected by F. Sheperd; E) baleen whale skull (Parabalaenoptera sp.), SCMNH 9990.15, collected by W. Miller; F) walrus skull (Valenictus sp.), UCMP 219091, collected by F. Sheperd; G) fur seal skull (Thalassoleon macnallyae), SCMNH 9975.1, collected by G. Macy. Published as part of Boessenecker, Robert W., 2022, Amateur collectors are critical to the study of fossil vertebrates: A case study from two Neogene localities in Northern California (Santa Margarita and Purisima formations), pp. 1-16 in Palaeontologia Electronica (a10) 25 (1) on page 8, DOI:10.26879/1199, http://zenodo.org/record/12656261
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