The strontium-calcium atom ratio in carbonate-secreting marine organisms 



Table I (cont.) 



35 



Locality 



Calcium Strontium 

 % % 



Carbon 

 dioxide 



/a 



Orf^anic 

 matter 



% 



Atom ratio 

 Sr 



Ca 



^ 1000 



FAMILY FUSINIDAE 



Fusinus monksae i Calif. 



FAMILY NASSARIIDAE 

 Nassa obsoleta ' N. H. 



FAMILY MURICIDAE 



Acanthina spirata Calif. 



Murex pume Florida 



M. triolatus Calif. 



Thais canaliculata Calif. 



T. emarginata Calif. 



T. lamellosa Wash. 



T. lapillus N. H. 



T. lapillus N. H. 



35-5 



36-4 



38-6 

 39-9 

 380 



38-1 

 37-6 

 38-8 

 38-5 

 36-5 



ons 



0151 



0131 

 0172 

 0131 

 0128 

 0138 

 0129 

 0126 

 0128 



40- 1 



40-9 



42-3 

 41-7 

 42-6 

 42-8 

 42-3 

 42-8 

 42-7 

 39-4 



4-27 



6-46 



2-66 

 2-30 

 1-68 

 2-26 

 3 03 

 1-45 

 113 

 3-68 



1-48 



1-89 



55 



97 



58 



54 



68 



1-52 



1-50 



1-60 



SUBCLASS OPISTHOBRANCHIA, ORDER NUDIBRANCHIA 



Anisodoris nobilis Calif. 



Archidoris montereyensis I Calif. 



Triopha grandis I Calif. 



(J) PHYLUM MOLLUSCA 

 CLASS SCAPHOPODA 



Dentalium entale i Wash. 



2-60 

 316 

 0-25 



38-2 



063 

 062 



trace 



0196 



3-25 

 4-68 



67-2 

 78 



-91-3- 



-) 



42-3 



1-81 



11 

 9 



2-35 



CLASS CEPHALOPODA, SUBCLASS DIBRANCHIATA, ORDER DECAPODA 



Loligo opalescens Calif. I trace trace trace 99 5 



Sepia sp. 



unknown 



35-8 



(K) PHYLUM BRYOZOA, CLASS ECTOPROCTA 

 ORDER CYCLOSTOMATA 



Idmonea sp. 



Crista sp. 



Bryozoa (unidentified) 



Bryozoa (unidentified) 



Bryozoa (unidentified) 



f Calif 

 Calif. 



Beaufort Sea 

 Beaufort Sea 

 Beaufort Sea 



ORDER CHEILOSTOMATA 

 Bugula californica , Calif. 



Hippodiplosia insculpta 

 Phidolopora pacifica 



Calif. 

 Calif. 



35-6 



35-7 

 34-3 

 30-6 

 25-3 



18-2 

 29-4 

 33-7 



0-293 



0-307 

 0-282 

 0-256 

 0-209 

 0181 



0-124 

 0-247 

 0-221 



401 



38-1 

 38-2 

 40-2 

 35 



31-8 



23-7 

 35-8 

 400 



7-35 



7-90 

 6-28 

 7-30 

 16-5 

 23-2 



36-0 

 13-8 

 6-37 



3-74 



3-94 

 3-61 

 3-41 

 3-12 

 3-27 



312 

 3-84 

 3 00 



(L) PHYLUM BRACHIOPODA, CLASS ARTICULATA, ORDER TESTICARDINES 



Hemithyris psittacea Beaufort Sea 37-7 0113 42-2 3 02 1 



H. psittacea* Beaufort Sea 



Terebratalia transversa Wash. 



Terebratulina unguicala Calif. 



Brachiopoda (unidentified) Calif. 



37-7 

 38-9 

 38 

 37-8 

 38-7 



0113 

 0102 

 0130 

 0113 

 0108 



42-2 

 42-8 

 41-3 

 42-5 

 42-7 



3 02 

 1-94 

 2 02 

 1-8! 

 1-79 



1-37 

 I 20 

 1-57 

 1-37 

 1-28 



(M) PHYLUM ECHINODERMATA 



CLASS CRINOIDEA I 

 Antedon sp. ! Calif. 



i 

 CLASS ASTEROIDEA 

 ORDER FORCIPULATA 



25-8 



0-145 



38- 



13-3 



2-56 



Asterias forbesi 

 A. vulgaris 

 A. vulgaris 

 Leptasterias aequalis 

 L. pusilla 

 Mediaster aequalis 



Mass. 

 N. H. 



Mass. 

 Calif. 

 Calif. 

 Calif. 



* Remains. 



