Grottoli AG, Adkins JF, Panero WR, Reaman DM, Moots K.  2010.  Growth rates, stable oxygen isotopes (delta(18)O), and strontium (Sr/Ca) composition in two species of Pacific sclerosponges (Acanthocheatetes wellsi and Astrosclera willeyana) with delta(18)O calibration and application to paleoceanography. Journal of Geophysical Research-Oceans. 115:C06008-C06008.