Where: Western Australia, Australia (23.1° S, 114.2° E: paleocoordinates 47.7° S, 87.2° E)
• coordinate based on nearby landmark
• small collection-level geographic resolution
When: Gearle Siltstone Formation, Albian (113.0 - 100.5 Ma)
• "middle to late Albian" based on shark fauna and the formation is "late early Albian... very close to its base"
• group of beds-level stratigraphic resolution
Environment/lithology: offshore; argillaceous siltstone
Size classes: macrofossils, mesofossils
Collected by M. Siverson, K. Brimmell, A. Baynes in 1994, 1995; reposited in the WAM
Collection methods: salvage, surface (float),
• Western Australia Museum collection
•recovered from sediments that now "make up the walls of the dam" and were excavated during its construction
•"processing a 5 kg bulk sample did not yield any microscopic teeth"
Primary reference: M. Siverson. 1997. Sharks from the mid-Cretaceous Gearle Siltstone, Southern Carnarvon Basin, Western Australia. Journal of Vertebrate Paleontology 17(3):453-465 [J. Alroy/J. Alroy]more details
Purpose of describing collection: taxonomic analysis
PaleoDB collection 90688: authorized by John Alroy, entered by John Alroy on 12.08.2009
Creative Commons license: CC BY (attribution)
Taxonomic list
Chondrichthyes | |
Paraorthacodus sp. Glikman 1957 elasmobranch | |
"Notorynchus aptiensis" = Gladioserratus aptiensis
"Notorynchus aptiensis" = Gladioserratus aptiensis Pictet 1865 cow shark | |
| |
Leptostyrax sp. Williston 1900 mackerel shark | |
Paraisurus aff. compressus Sokolov 1978 mackerel shark | |
Archaeolamna sp. Siverson 1992 mackerel shark | |
"Carcharias striatula" = Eostriatolamia striatula
"Carcharias striatula" = Eostriatolamia striatula Dalinkevičius 1935 sand tiger shark | |
Cretolamna sp. Glikman 1958 mackerel shark | |
Squalicorax primaevus Dalinkevičius 1935 crow shark | |
Cretoxyrhinidae indet. Glückman 1958 mackerel shark |