Researchers have reported a unique discovery; the marine dinoflagellate Dapsilidinium pastielsii in Southeast Asia, notably the Indo-Pacific Warm Pool.
This unicellular species, with planktonic and benthic stages, was previously thought to have become extinct within the early Pleistocene. It evolved more than 50 million years ago and is the last survivor of a major early Cenozoic lineage.
The discovery of living D. pastielsii in the Indo-Pacific Warm Pool suggests that this stable environment served as an important refuge for thermophilic dinoflagellates, and its disappearance from the Atlantic following the early Pleistocene implicates cooling.
The new study highlights the importance of refugia in plankton biogeography and broadens their relevance as hotspots of biodiversity. It explains how biostratigraphic ranges in the Pacific can significantly extend those established for the Atlantic. The discovery of D. pastielsii as a “living fossil” in the IPWP highlights the potential for refugia to harbor species likely to expand their distributional range in a warming world.
This is the first record of a refugium plankton species within the Indo-Pacific warm pool.
Citation: Kenneth N. Mertens, Yoshihito Takano, Martin J. Head and Kazumi Matsuoka, 'Living fossils in the Indo-Pacific warm pool: A refuge for thermophilic dinoflagellates during glaciations', Geology
April 10, 2014, doi: 10.1130/G35456.1
- PHYSICAL SCIENCES
- EARTH SCIENCES
- LIFE SCIENCES
- SOCIAL SCIENCES
Subscribe to the newsletter
Stay in touch with the scientific world!
Know Science And Want To Write?
- Wait, Let's Not Rush To Be Multiplanetary Or Interstellar - A Comment On Elon Musk's Vision
- The Chinese STEM Butterflies Of A 14-Year-Old Girl
- Bizarre Forelimb Evolution In Ancient Drepanosaurus Fossil
- Heal Non-Healing Wounds With Cold Plasma
- Ground Squirrels Use The Sun To Hide Food
- How 'Super Aging' Seniors Retain Youthful Memory Abilities
- The Social Psychology of Presidential Election Polls, Part 1 of 2
- "Another earlier cite - Is there a common chemical model for life in the universe? (2004)..."
- "Yes that's an example of a really insignificant asteroid that blew up into a media storm for no..."
- "They had to extend the deadline because the 4 AP 1000's likely won't come online by the very generous..."
- "hey robert you saw the news of an asteroid called 2009 ES ?? as saying there that he was discovered..."
- "No, no cause for concern at all :). It's just a new moon, such as happens once a month. When the..."
- Genetically Engineered Drug to Improve Safety of New Anti-clotting Meds
- Hillary Clinton vs. Donald Trump: Who’s Got the Stamina?
- Feeding Young Athletes
- Hillary Clinton vs. Donald Trump: Who’s Got the ‘Stamina?’
- Chess Success: From Intelligence or Relentless Practice?
- ACSH Performs #22PushUps Challenge
- Single-celled fungi multiply, alien-like, by fusing cells in host
- 51 U.S. House Members Urges DEA To Delay "Hasty" Ban On Natural Herbal Supplement Kratom
- Women are a quarter of the 1 percent
- Wetlands and agriculture, not fossil fuels, behind the global rise in methane
- Mass immigration is correlated to higher levels of crime, but not causal