Firth, John V. et al. (2009): CT-scan analysis of early Albian vertebrate remains and amber from a guyot in the Mid-Pacific, ODP Site 865

Leg/Site/Hole:
ODP 143
ODP 143 865
Identifier:
2010-057069
georefid

Creator:
Firth, John V.
Texas A&M University, Integrated Ocean Drilling Program, College Station, TX, United States
author

Yancey, Thomas E.
author

Stidham, Thomas A.
author

Alvarez Zarikian, Carlos A.
author

Identification:
CT-scan analysis of early Albian vertebrate remains and amber from a guyot in the Mid-Pacific, ODP Site 865
2009
In: Anonymous, Geological Society of America, 2009 annual meeting
Geological Society of America (GSA), Boulder, CO, United States
41
7
210
A 30 cm thick mudstone sandwiched between oceanic island basalt sills near the base of ODP Hole 865A, Mid-Pacific Mountains, contains a lower Albian lagoonal crocodilian-bearing vertebrate fossil lagerstatte (Firth et al., 2006). Initial study of this deposit was restricted to examination of surfaces of core pieces, and disaggregation of selected pieces from the working half of the core, which yielded several crocodilian teeth, a variety of fish teeth, abundant fish scales, and a few unidentified vertebrate bones. Recent high resolution and ultra-high resolution CT-scanning of this core interval has enhanced our census of the fossil assemblage by allowing us to non-destructively view abundant hidden vertebrate remains inside both the archive half and working half of the core, as well as other fossils inside small pieces of amber extracted from the core. The CT-scanning also allowed us to more fully examine the sedimentary features through this interval to better understand its depositional history. Comparison of 3-dimensional imaged fossils with additional extracted fossils from the working half of the core have allowed us to improve our identification of some of these specimens. We will show a compendium of 3-dimensional images to illustrate the variety and extent of this unique oceanic island/lagoonal biota.
English
Coverage:Geographic coordinates:
North:18.2626
West:-179.3321East: -179.3320
South:18.2624

Vertebrate paleontology; Albian; Archosauria; Chordata; Cretaceous; Crocodilia; Crocodylidae; Diapsida; East Pacific; Eusuchia; Leg 143; lower Albian; Lower Cretaceous; Mesozoic; Mid-Pacific Mountains; North Pacific; Northeast Pacific; Ocean Drilling Program; ocean floors; ODP Site 865; Pacific Ocean; Reptilia; seamounts; Tetrapoda; Vertebrata;

.