{"first_publish_date": "1975", "last_modified": {"type": "/type/datetime", "value": "2010-12-05T08:25:52.648662"}, "title": "Stratigraphic distribution and zonation of Jurassic (Callovian) ammonites in southern Alaska", "created": {"type": "/type/datetime", "value": "2009-12-09T21:53:47.628955"}, "subject_places": ["Alaska"], "lc_classifications": ["QE683 .I44"], "latest_revision": 3, "key": "/works/OL1570263W", "authors": [{"type": {"key": "/type/author_role"}, "author": {"key": "/authors/OL168843A"}}], "subject_times": ["Jurassic"], "subjects": ["Ammonoidea", "Geology", "Geology, Stratigraphic", "Stratigraphic Geology"], "type": {"key": "/type/work"}, "dewey_number": ["564/.5"], "revision": 3}