Shell ring

Shell rings are archaeological sites with curved shell middens completely or partially surrounding a clear space. The rings were sited next to estuaries that supported large populations of shellfish, usually oysters. Shell rings have been reported in several countries, including Colombia, Peru, Japan, and the southeastern United States. Archaeologists continue to debate the origins and use of shell rings.

单词	Shell ring
释义	Shell ring 英语百科 Shell ring Shell rings are archaeological sites with curved shell middens completely or partially surrounding a clear space. The rings were sited next to estuaries that supported large populations of shellfish, usually oysters. Shell rings have been reported in several countries, including Colombia, Peru, Japan, and the southeastern United States. Archaeologists continue to debate the origins and use of shell rings.
随便看	HLA Bw71 antigen HLA Bw72 antigen HLA Bw73 antigen HLA Bw75 antigen HLA Bw76 antigen HLA Bw77 antigen HLAC HLA C antigen HLA C Antigens HLA C DNA Probes HLA Class I Genes HLA Class II Genes HLA C locus HLA complement haplotype HLA complex HLA Cw10 antigen HLA Cw11 antigen HLA Cw1 antigen HLA Cw2 antigen HLA Cw3 antigen HLA Cw4 antigen HLA Cw5 antigen HLA Cw6 antigen HLA Cw7 antigen HLA Cw8 antigen