Discussion 



39 





Archaeological 





Modern Distribution 





Species 



Occurrence* 



Zone I 



Zone 



II Zone III 



Zone 



MARINE PELECYPODS 















Area imbricata 



I,P 



X 



X 





X 



X 



Area pacifica 



U 







(Pacific) 







Area zebra 



D, M, I, T, U, P 



X 



X 





X 



X 



Anadara grandis 



CN 







(Pacific) 







Anadara notabilis 



D,I 



X 



X 





X 



X 



Anadara transversa 



D, M, T 





X 





X 



X 



Lunarca ovalis 



T,B(!) 











X 



Noetia ponderosa 



D,T 











X 



Glycymeris decussata 



I 



X 



X 







X 



Glyeymeris undata 



M, I 



X 











Modiolus d. granosissimus 



D 



X 







X 



X 



Braehidontes exustus 



D,T 



X 







X 



X 



Musculus lateralis 



T 





(not collected) 





Isognomon alatus 



D,I 



X 







X 



X 



Isognomon radiatus 



D,I 



X 



X 





X 



X 



Pteria colymbus 



D 



X 



X 





X 



X 



Pinctada radiata 



D, M, I, T 



X 



X 





X 



X 



Atrina seminuda 



D 



X 







X 



X 



Plicatula gibbosa 



D,T(?) 



X 



X 





X 



X 



Pecten laurenti 



I 



X 











Lyropecten nodosus 



D,I,T 



X 







X 



X 



Lyropecten subnodosus 



U,T 







(Pacific) 







Aequipecten gibbus 



Corozal 



X 



X 





X 



X 



Aequipecten muscosus 



D 



X 



X 





X 



X 



Spondylus americanus 



D, M, K, I, B, T, Actun Xkyc 



X 



X 





X 





Spondylus princeps 



CN, S, Pusilha, U, T, P 







(Pacific) 







Lima lima 



I 



X 



X 









Lima scabra 



I 



X 



X 









Anomia simplex 



D,M 



X 



X 





X 



X 



Ostrea equestris 



I 



X 











Ostrea frons 



I 



X 



X 





X 





Crassostrea virginica 



D, I, S, Corozal 



X 







X 



X 



Carditamera floridana 



D,T 



x 







X 



X 



Pseudocyrena floridana 



D 



X 







X 



X 



Diplodonta semiaspera 



D 









X 





Lucina pensylvanica 



I 



X 



X 









Phacoides pectinatus 



D,I 



X 







X 



X 



Phacoides radians 



D 









X 





Codakia orbicularis 



D, I, B,T 



X 



X 





X 



X 



Chama congregata 



D 



X 



X 









Chama echinata 



T 







(Pacific) 







Chama florida 



I 



X 



X 









Chama macerophylla 



I, S, Corozal 



X 



X 





X 



X 



Chama sarda 



I 



X 



X 





X 





Chama sinuosa 



I 



X 











Pseudochama radians 



I 



X 



X 





X 



X 



Trachycardium egmontianum 



T(?) 





( not collectt 



'd) 





Trachycardium isocardia 



D,M, T(?) 



X 







X 



X 



Trachycardium magnum 



i,u 



X 



X 





X 





Trachycardium rauricatum 



D, M,I,T,U, P 



X 



X 





X 



X 



Dinocardium r. vanhyningi 



D, M, T 



X 







X 



X 



Antigona listeri 



I 



X 



X 









Antigona rigida 



I 



X 



X 









Mercenaria campechiensis 



D,U 





X 





X 



X 



Chione cancellata 



D, M, T 



X 



X 





X 



X 



Anomalocardia cuneimeris 



D, M, T 



X 







X 



X 



Transennella cubaniana 



D 



X 







X 





Macrocallista maculata 



D, M 



X 



X 





X 



X 



Dosinia discus 



T(?) 





{tiot collected) 





Dosinia elegans 



D,M,I 



X 







X 



X 



