Javelina
51 occ.
23 taxa (4 genera)
2 countries
Description
The Javelina Formation is a geological formation in Texas. Dating has shown that the strata date to the Maastrichtian stage of the Late Cretaceous, approximately 70 to 66.5 million years old. The middle part of the formation has been dated to about 69 million years ago plus or minus 1 million years and the top situated near the Cretaceous–Paleogene boundary, dated to 66 Ma ago. Dinosaur remains are among the fossils that have been recovered from the formation.
Genera
4 genera
Temporal range
252
201
145
66
0 Ma
Geological group / Member
Tornillo
37
Top countries
🇺🇸 United States
49
🇲🇽 Mexico
2
Depositional environments
Terrestrial indet.
13
Fluvial indet.
11
Channel
11
Fluvial-lacustrine indet.
10
Floodplain
2
Crevasse splay
1
Fine channel fill
1
Delta plain
1
Lacustrine indet.
1
Top collectors
Lawson
2
W. Langston
2
Jr.
2
A. Fiorillo
1
B. Rainey
1
D. A. Lawson
1
W. Langston Jr.
1
Collection activity by decade
1970s
6
1990s
1