Lance General (UCMP loc. V-65238) (Cretaceous of the United States)

Where: Niobrara County, Wyoming (43.2° N, 104.6° W: paleocoordinates 49.8° N, 78.8° W)

• coordinate estimated from map

• small collection-level geographic resolution

When: Lance Formation, Maastrichtian (72.1 - 66.0 Ma)

• group of beds-level stratigraphic resolution

Environment/lithology: terrestrial; lithology not reported

Size classes: macrofossils, mesofossils

Reposited in the UCMP

Collection methods: surface (float),

Primary reference: P. A. Holroyd and J. H. Hutchison. 2002. Patterns of geographic variation in latest Cretaceous vertebrates: evidence from the turtle component. Geological Society of America Special Paper 361:177-190 [R. Benson/R. Benson]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 137798: authorized by Roger Benson, entered by Roger Benson on 19.12.2012, edited by Matthew Carrano and Patricia Holroyd

Creative Commons license: CC BY (attribution)

Taxonomic list

 Testudines - Macrobaenidae
"Clemmys backmani" = Judithemys backmani
"Clemmys backmani" = Judithemys backmani Russell 1934 turtle
UCMP 173427
 Testudines - Trionychidae
Trionychidae indet., "Aspiderites sp." = Aspideretes
Trionychidae indet. Gray 1825 softshell turtle
UCMP 73032
"Aspiderites sp." = Aspideretes Hay 1904 softshell turtle
UCMP 73042
 Testudines - Compsemydidae
Compsemys sp. Leidy 1856 turtle
UCMP 72899
 Testudines - Nanhsiungchelyidae
Basilemys sp. Hay 1902 turtle
UCMP 73088
 Testudines - Kinosternoidae
Kinosternoidae indet. Holroyd and Hutchison 2002 turtle
UCMP 73039
 Testudines - Pantrionychidae
"Derrisemys sterea" = Hutchemys sterea1, Helopanoplia sp.
"Derrisemys sterea" = Hutchemys sterea1 Hutchison 2009 turtle
UCMP 173431
Helopanoplia sp. Hay 1908 turtle
UCMP 173379
 Testudines - Panchelydridae
Chelydridae indet. turtle
UCMP 125789
 Testudines - Adocidae
Adocus sp. Cope 1868 turtle
UCMP 173428
 Avetheropoda - Dromaeosauridae
Richardoestesia cf. isosceles2 Sankey 2001 coelurosaur
UCMP 214012-3, 214016, 214020-3, 214039, 214043