Geological formation in Egypt
The Dakhla Formation , also called the Dakhla Shale ,[ 5] is a Maastrichtian -Danian geologic formation in the Western Desert , Egypt .[ 4] [ 6] Dinosaur remains are among the fossils that have been recovered from the formation, although none have yet been referred to a specific genus .[ 7]
Color key Notes Uncertain or tentative taxa are in small text ; crossed out taxa are discredited.
Mosasaurs reported from the Dakhla Formation Genus Species Presence Material Notes Images Globidens G. phosphaticus Beris Oyster Mudstone Member[ 2] A single tooth crown (CUNV0011).[ 2] A mosasaurine . Halisaurus H. hebae Beris Oyster Mudstone Member[ 11] A halisaurine Mosasaurinae Indeterminate Beris Oyster Mudstone Member[ 2] A fragmentary small dentary with a single tooth (CUNV0012).[ 2] A mosasaurine . Prognathodon P . sp. "Lower part" Two tooth crowns, three cervical, nine dorsal, three caudal vertebrae, and ribs, found in association (NVP025).[ 5] Most similar to P. overtoni , possibly a member of that species
Bivalves reported from the Dakhla Formation Genus Species Presence Material Notes Images Apectoichnus A. longissimus Ammonite Hill Member[ 1] Borings in Nypa fruits.[ 1] Bivalve borings. Teredolites T. clavatus Ammonite Hill Member[ 1] 32 moderately preserved borings (TBT02-33) & two badly preserved specimens (TBT44-45) in Nypa fruits.[ 1] Bivalve borings.
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