ammonites
Cabeça de Negro tracksite (ORCN) (Cretaceous to of Brazil)

Also known as Malhada Vermelha; Leonardi locality 77

Where: Ceará, Brazil (6.3° S, 39.1° W: paleocoordinates 4.5° S, 6.2° W)

• coordinate stated in text

• outcrop-level geographic resolution

When: Malhada Vermelha Formation, Berriasian to Berriasian (145.5 - 125.5 Ma)

• bed-level stratigraphic resolution

Environment/lithology: alluvial fan; fine-grained, red, blue sandstone

• alluvial fan or channel, hot semiarid paleoclimate
• "fine sandstone of a purplish color"

Size class: macrofossils

Preservation: mold/impression, trace

Collected by Leonardi, Muniz, & do Valle in 1981

Collection methods: surface (in situ),

• discovered by Giuseppe Leonardi with Geraldo da Costa Barros Muniz and Lenice do Valle

Primary reference: G. Leonardi. 1994. Annotated Atlas of South America Tetrapod Footprints (Devonian to Holocene) with an Appendix on Mexico and Central America. República Federativa do Brasil, Ministério de Minas e Energia, Secretaria de Minas e Metalurgia, Companhia de Pesquisa de Recursos Minerais, Brasília 1-248 [M. Carrano/K. Maguire/M. Carrano] more details

Purpose of describing collection: paleoecologic analysis

PaleoDB collection 67234: authorized by Matt Carrano, entered by Matt Carrano on 15.11.2006