Student, Rutgers University, 1973-1978; Bachelor, Thomas Edison College, 1982.
Technical, New Jersey State Museum, Trenton, 1985-1986; collection manager, Academy Natural Sciences, Philadelphia, since 1986.
Trustee Wagner Free Institute of Science, Philadelphia, 1988-1998, secretary 1993-1997. Member Geological Society of America, Grand Canyon Natural History Association (life), Arizona-Nevada Academy of Sciences (life), Delaware Valley Paleontological Society (board member since 1982).
Married Donna Alvin, 1977 (divorced 1984).