Pulleniatina Sample Weights from IODP Expedition 363

Pulleniatina sample weights from sediment core U1486, collected during International Ocean Discovery Program Expedition 363. The data supports a UK NERC-funded project (NE/P016375/1) led by Professor Paul Pearson to study the Indo-Pacific Warm Pool's climatic history over the last 15 million years. The dataset is hosted by the British Geological Survey and was last updated in April 2026.

Use Cases

• Refining biostratigraphic age models based on Pulleniatina evolutionary lineage mentioned in the description
• Analyzing morphological coiling patterns (left/right-handedness) in foraminifera as a climate proxy
• Studying speciation and extinction events in planktonic foraminifera over the last 15 million years
• Correlating foraminifera population changes with glacial-interglacial and Miocene climate cycles described in the grant

Strengths

• Data is associated with a specific, peer-reviewed scientific expedition (IODP Expedition 363)
• Focuses on a foraminifera lineage (Pulleniatina) described as having considerable untapped potential for stratigraphic work
• Project aims to provide a high-quality planktonic foraminifer biostratigraphy for the region

Limitations

• Column-level documentation is absent; field semantics must be inferred after download
• Row count is unknown, which may limit suitability assessment

Provenance

Source

British Geological Survey (BGS)

Collection Method

Samples collected during International Ocean Discovery Program Expedition 363, likely from sediment core U1486.

Time Range

Covers a study period of the last 15 million years.

Freshness

Last updated 2026-04 09 08:40:59.119705; freshness should be verified

Geography

Indo-Pacific Warm Pool region (tropical western Pacific and Indian Oceans).