Holocene crustaceans from the Tarioba shell mound, Rio das Ostras, Rio de Janeiro, Brazil

By

Rodrigues, Felipe Barta
Duarte, Michelle Rezende
Souza, Rosa Cristina Corrêa Luz De
Soares-Gomes, Abílio
Silva, Edson Pereira

Type

Article

Date of Publication

2016-3-28

Original Publication

Check list : journal of species lists and distribution

Volume

12

Series / Issue

Issue: 2

Pages

1865--5

Subjects

archaeozoology , Arthropoda , Biodiversity , Coastal region , Crustacea , hunter-gatherers , shell mounds , species’ inventory

Contributed by

Pensoft Publishers

Language

English

Published by

[São Paulo, Brazil] Luís Felipe Toledo 2005-

Identifiers

DOI: https://doi.org/10.15560/12.2.1865

 

Abstract

Crustacean remains from the Tarioba shell mound (Sambaqui da Tarioba) archaeological site were investigated in order to produce a reference inventory of this taxonomic group. Information on past crustacean diversity is important for establishing baselines on biodiversity, as well as recovering paleoenvironmental information and comprehension of evolutionary change patterns for the Brazilian coast. The archaeological site was excavated by delayering the soil by artificial 10 cm sections which revealed five archaeological stratigraphic layers. A sample of mollusk shells for each of these layers was used for dating based on the C14 method. The results show an occupation period of 550 yr for the Tarioba shell mound, with dates ranging between 4,070 cal BP (beginning of occupation) and 3,520 cal BP (occupation ending) and record nine species of crustaceans from the shell mound. However, a reduction of biodiversity over time was found that was not statically significant. Therefore, it seems that patterns of composition, richness and distribution of crustaceans have been stable in the last 4,070 years BP.