Where: Manabi, Ecuador (0.2° S, 80.3° W: paleocoordinates 0.3° S, 79.9° W)
• coordinate based on nearby landmark
• local area-level geographic resolution
When: Punta Ballena Member (Jama Formation), Early/Lower Pleistocene (2.6 - 0.8 Ma)
• While not specified, it appears that the collection is a composite of several bulk samples showing similar taphonomic characteristics and stratal position. Early Pleistocene in age (MOI stages 35-50). The Punta Ballena Member of the Jama Formation is overlain by the El Matal Member (60 m thick, fluvial) and underlain by the Punta Pasa Borracho Member (20 m thick, marine). The Punta Ballena Member is 100 m thick, mixed fluvial and marine. The age of the Jama Formation is constrained by 40Ar/39Ar date of tephra beds.
• group of beds-level stratigraphic resolution
Environment/lithology: transition zone or lower shoreface; unlithified, medium-grained, coarse, shelly/skeletal sandstone
Size class: macrofossils
Preservation: original aragonite, original calcite
Collection methods: bulk, sieve,
• Unknown respository for material; possibly either Universita di Camerino or Universita di Pisa, Italy; faunal list is a composite of at least two bulk collections.
Primary reference: G. Cantalamessa, C. Di Celma, and L. Ragaini. 2005. Sequence stratigraphy of the Punta Ballena Member of the Jama Formation (Early Pleistocene, Ecuador): insights from integrated sedimentologic, taphonomic and paleoecologic analysis of molluscan shell concentrations. Palaeogeography, Palaeoclimatology, Palaeoecology 216:1-25 [A. Miller/A. Hendy/A. Hendy]more details
Purpose of describing collection: paleoecologic analysis
PaleoDB collection 48665: authorized by Austin Hendy, entered by Austin Hendy on 26.03.2005
Creative Commons license: CC BY (attribution)