ammonites
banner
Gateway to the Paleobiology Database
north of Aderbissinat (PROXY) (Jurassic of Niger)

Where: Agadez, Niger (16.7° N, 7.9° E: paleocoordinates 8.3° N, 2.6° E)

• local area-level geographic resolution

When: Irhazer II Formation (Irhazer Group), Middle Jurassic (175.6 - 161.2 Ma)

• base of group, below Tiourarén Fm.

• bed-level stratigraphic resolution

Environment/lithology: terrestrial; massive, red, calcareous siltstone

• "Both partial skeletons were found in a massive to finely laminated red siltstone containing some carbonate in its matrix. The siltstone layer is several meters thick and yielded the sauropod remains in its upper half."

Size class: macrofossils

Collected by PALDES in 2006

Collection methods: quarrying, surface (in situ), mechanical,

• Paleontologia y Desarrollo group

Primary reference: K. Remes, F. Ortega, I. Fierro, U. Joger, R. Kosma, J. M. M. Ferrer, Project, Niger Project, O. A. Ide and A. Maga. 2009. A new basal sauropod dinosaur from the Middle Jurassic of Niger and the early evolution of Sauropoda. PLoS One 4(9):e6924:1-13 [M. Carrano/M. Carrano] more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 104815: authorized by Matthew Carrano, entered by Matthew Carrano on 10.02.2011

Creative Commons license: CC BY (attribution)