Download - A maior trilha do brasil
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Durante sua deposição sedimentar no Cretáceo Inferior, o complexo de bacias do Rio do Peixe na porção oriental da América do Sul apresentava uma estreita relação geográfica e união com a África na pré-abertura do Oceano Atlântico.
Evidentemente o intercâmbio faunístico (incluindo os dinossauros) era uma característica nas bacias do Rio do Peixe e os depósitos africanos.
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Engloba as áreas das bacias de Malhada Vermelha-Iguatu-Icó-Lima Campos, Uiraúna-Brejo das Freiras, Sousa, Araripe e Cedro. Todas essas bacias interiores nordestinas apresentam “arenitos inferiores”, onde há a ocorrência de pistas e pegadas de dinossauros.
Imagem:
Viana, Lima Filho & Carvalho (1993).
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Oeste do estado da Paraíba, Neocomiano (Cretáceo Inferior). Aproximadamente 130 milhões de anos.
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α
α = ângulo de passo; P = distância de passo.
P
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II
III
V
a
bc
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Procede da Formação Candeleros(Cenomaniano), Argentina e mede aproximadamente 60-65 cm de comprimento.
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