Acro (Acrocanthosaurus) is a carnivorous dinosaur excavated in 1984 near Glen Rose TX by C. Baugh and G. Detwiler; in 108 MA Cretaceous sandstone — identified by Dr. W. Langston of Un. of TX at Austin.
Allosaurus is a carnivorous dinosaur excavated in 1989 by J. Hall, A Murray team and under a Brontosaurus skeleton in the Wildwood section on a ranch west of Grand Junction CO in 150 Ma Late Jurassic sandstone of the Morrison formation - identified by using Allosaurus bone handbook submitted by local museum curator.
Hadrosaur #1, a duck billed dinosaur bone fragments excavated in 1994 along Colville River by G. Detwiler, J. Whitmore team in the famous Liscomb, bone bed of Alaskan North Slope — validated by Dr. J. Whitmore.
Hadrosaur #2, a duck billed dinosaur lone femur bone excavated in 2004 in clay in the NW , NE of Sec. 32, T16N, R56 E, Dawson County, Montana by O. Kline team of the Glendive Dinosaur and Fossil Museum — identified by paleontology descriptions and sawed open by O. Kline, H. Miller team in 2005 to retrieve samples for testing for C-14 content.
Triceratops #1, a ceratopsid dinosaur lone femur bone excavated in 2004 in Cretaceous clay at 47 6’ 18 by 104 39’ 22 Montana by O. Kline team of the Glendive MT Dinosaur & Fossil Museum — identified by paleontology descriptions and sawed open by O. Kline, H. Miller team in 2005 to retrieve samples for testing for C-14 content.
Triceratops #2, a very large ceratopsid-type dinosaur excavated in 2007 in Cretaceous clay at is 47' 02" 44N and 104' 32" 49W by O. Kline team of Glendive Dinosaur & Fossil Museum — identified by paleontology descriptions but may be a new species; outer bone fragments of femur tested for C-14.
Hadrosaur #3, scrapings from a duck billed dinosaur large bone, excavated by Joe Taylor of Mt Blanco Fossil Museum, Crosbyton TX in Colorado in Cretaceous strata — identified by Joe Taylor. Apatosaur, scrapings from a rib still imbedded in the clay soil of a ranch in CO, partially excavated in 2007 and 2009 in 150 Ma late Jurassic strata by C. Baugh and B. Dunkel - identified by C. Baugh.
Lab ID: All specimens from USA unless otherwise noted.
GX is Geochron Labs Cambrdge MA, USA; AA is University of Arizona Tuscon AZ, USA; UG is University of Georgia, Athens GA, USA; KIA is Christian Albrechts Universitt, Kiel Germany; AMS is Accelerated Mass Spectrometer; Beta is the conventional method of counting Beta decay particles; Bio is carbonate fraction of bioapatite. Bow is bulk organic fraction of whole bone; Col is collagen fraction; w or ext is charred, exterior or whole bone fragments; Hum is humic acids.
Weight of samples: Sample size sent to RC lab, 170 g as required by Geochron in 1990 for GX-15155, conventional beta
Sample size sent to RC lab, excess CO2 from GX-15155 encapsulated in glass and sent to NZ lab, AMS
Sample size sent to RC lab, 50 mg as scrapings from different Acro bone for AA-5786, AMS
Sample size sent to RC lab, 6.4 g from femur for UGAMS-7509a & b, AMS
Sample size sent to RC lab, 30 g for UGAMS-02947, AMS
Sample size sent to RC lab, 5 g for KIA-5523, AMS
Sample size sent to RC lab, 8.4 g for GX-32372-Internal bone material, AMS
Sample size sent to RC lab, 146 g for GX-32647-Outer bone material, conventional beta
Sample size sent to RC lab, 2.3 g for GX-31950-Internal bone material, AMS
Sample size sent to RC lab, 160 g for GX-32678-AMS & GX-32739-Outer bone, Conventional beta
Contam is Contaminant in collagen fraction; it could be humic acids or an unknown but it was removed by acid - base - acid pretreatment and was only 1.3% of collagen sample in UGAMS-01918. In GX-31950 the contaminant overwhelmed the collagen as the sample was too small which is a good reason for extracting and dating other fractions and submitting large samples. This femur bone was found along a dry wash.