7.4.2 Lower Cretaceous
The reports of Cooke (1961) show the presence of Tylocidaris sp. and Stereocidaris sp. in the Barranquin Formation (Hauteriviense-Barremiense) of northeastern Venezuela (Sucre state), an area with a shallow marine paleoenvironment,
and Tetragramma sp. in rocks without formational information. For the Chimana
Formation (Albiense), also in eastern Venezuela (Anzoátegui state). Cooke (1961)
reported Pseudananchys sp. from a paleoenvironment characterized by external
Fig. 7.3 Geological map of Venezuela showing the fossil echinoid localities. 1 San Cristóbal, 2
Mérida, 3 Maracaibo, 4 Los Monjes, 5 Trujillo, 6 Barinas, 7 Guanare, 8 Barquisimeto, 9 Coro, 10
San Felipe, 11 San Carlos, 12 Valencia, 13 Maracay, 14 San Juan de Los Morros, 15 Los Teques,
16 Caracas, 17 Península de Paraguaná, 18 Las Aves, 19 Los Roques, 20 La Orchila, 21 La
Blanquilla, 22 Los Hermanos, 23 Los Testigos, 24 Porlamar, 25 Margarita, 26 Península de
Araya, 27 Cumaná, 28 La Tortuga, 29 Barcelona, 30 Maturín, 31 Tucupita, 32 Ciudad Bolívar, 33
San Fernando de Apure, 34 Puerto Ayacucho
7 Echinoderms from Venezuela
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