Culebra Formation

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Culebra Formation
Stratigraphic range: Aquitanian-Burdigalian (Late Arikareean-Hemingfordian)
23–19  Ma
O
S
D
C
P
T
J
K
Pg
N
Type Formation
Sub-unitsEmperador Limestone
Underlies Cucaracha Formation
Overlies Las Cascadas Formation
Thickness> 250 m (820 ft)
Lithology
Primary Sandstone, limestone, mudstone, shale
Other Siltstone, conglomerate, lignite
Location
Coordinates 9°06′N79°42′W / 9.1°N 79.7°W / 9.1; -79.7
Approximate paleocoordinates 8°24′N77°30′W / 8.4°N 77.5°W / 8.4; -77.5
Region Colón Province
Country Panama
Extent Panama Basin
Type section
Named for Culebra Cut
Panama relief location map.jpg
Yellow pog.svg
Culebra Formation (Panama)

The Culebra Formation (Tcb) [1] is a geologic formation in Panama. It preserves fossils dating back to the Miocene period; Early Miocene epoch, Aquitanian to Burdigalian stages (Late Arikareean to Hemingfordian in the NALMA classification). [2] Fossils of Culebrasuchus have been found in and named after the formation. [3] The thickness of the formation is at least 250 metres (820 ft) thick, [4] and the age has been estimated as from 23 to 19 Ma. [5]

Contents

Fossil content

See also

References

  1. Geologic Map, 1980
  2. Culebra Formation at Fossilworks.org
  3. 1 2 Culebrasuchus at Fossilworks.org
  4. Kirby et al., 2008, p.7
  5. Kirby et al., 2008, p.11
  6. Hastings et al., 2013
  7. Vélez Juarbe & Wood, 2019
  8. Landau et al., 2016
  9. Silvestro, 2017, p.14
  10. Panamacebus at Fossilworks.org
  11. Rincón et al., 2015
  12. Cadena et al., 2012, p.549

Bibliography

Further reading