The Mishash Formation is a Late Cretaceous (Campanian-Maastrichtian) geologic formation in Israel. The formation is correlated with the Duwi Formation of Egypt and the Amman and Ruseifa Formations of Jordan.[1] Mosasaur fossils assigned to Prognathodon currii and pterosaur fossils have been recovered from the formation.

Mishash Formation
Stratigraphic range: Campanian-Maastrichtian
~75–66 Ma
Outcrop of the Mishash Formation (dark upper part) overlying the Menuha Formation (light lower part) near Arad, Israel
TypeGeological formation
Sub-units
  • Phosphate Member
    • Phosphorite Unit
    • Porcelanite Unit
    • Phosphatic Carbonate Unit
  • Chert Member
UnderliesGhareb Formation
OverliesMenuha Formation
Lithology
PrimaryLimestone
OtherPhosphorite
Location
Coordinates30°12′N 35°00′E / 30.2°N 35.0°E / 30.2; 35.0
Approximate paleocoordinates13°06′N 30°12′E / 13.1°N 30.2°E / 13.1; 30.2
Country Israel
Mishash Formation is located in Israel
Mishash Formation
Mishash Formation (Israel)

Stratigraphy edit

The lower boundary of the Mishash Formation lies atop the top of the underlying Menuha Formation, while the upper boundary is covered by the overlying Ghareb Formation.[2][3] The Mishash Formation is divided into two members known as the Chert Member and Phosphate Member, with the latter overlying the former.[4] Massive chert beds comprise the Chert Member, while the Phosphate Member is made up of cherts, phosphorites, porcellanites and organic-rich carbonates.[2] The Phosphate Member is further divided into three units; the Phosphatic Carbonate Unit lies at the bottom of the member, followed by the Porcelanite Unit in the middle, and finally the Phosphorite Unit at the top.[3]

Fossil content edit

Color key
Taxon Reclassified taxon Taxon falsely reported as present Dubious taxon or junior synonym Ichnotaxon Ootaxon Morphotaxon
Notes
Uncertain or tentative taxa are in small text; crossed out taxa are discredited.

Reptiles edit

Reptiles reported from the Mishash Formation
Genus Species Presence Stratigraphic member Material Notes Images
Arambourgiania[3] A. sp. Nahal Qazra & Oron Phosphate Member (Phosphorite & Phosphatic Carbonate units) Endocranium & bone casts An azhdarchid pterosaur, originally reported as Titanopteryx.
 
Liodon[5] L. asiaticum Near Jerusalem Numerous bones A dubious mosasaur, remains now assigned to Mosasaurinae indet. & Mosasaurini incertae sedis
Mosasaurinae indet.[5] Indeterminate Northeastern Jerusalem Caudal vertebrae Mosasaur remains originally assigned to Liodon asiaticum
Mosasaurini[5] Incertae sedis Northeastern Jerusalem 30 bones A mosasaur related to Mosasaurus and Plotosaurus, remains originally assigned to Liodon asiaticum
Prognathodon[6] P. currii Oron Phosphate Member Skull & 8 vertebrae A large mosasaur
 
Reptilia indet.[3] Indeterminate Nahal Qazra Phosphate Member (Phosphatic Carbonate Unit) Endocranium Remains of an indeterminate reptile.
Titanopteryx[3] T. sp. Nahal Qazra & Oron Phosphate Member (Phosphorite & Phosphatic Carbonate units) Endocranium & bone casts Junior synonym of Arambourgiania.

Bony fish edit

Bony fish reported from the Mishash Formation
Genus Species Presence Stratigraphic member Material Notes Images
Enchodus[3] E. faujasi Nahal Qazra & Oron Phosphate Member (Phosphorite & Phosphatic Carbonate units) Endocranial casts An aulopiform.
 
E. sp. Nahal Qazra, Nahal Zin, Nahal Ashosh & Oron Phosphate Member (Phosphorite, Porcelanite & Phosphatic Carbonate units) Endocranial casts & bones An aulopiform.
 
Micropycnodon[3] M. sp. Oron Phosphate Member (Phosphorite Unit) 3 endocranial casts A pycnodont.
 
Polymixiidae[3] Indeterminate Oron Phosphate Member (Phosphorite Unit) 3 complete & a fragmentary endocranial cast A beardfish.
 
Prionolepis[3] P. sp. Nahal Ashosh Phosphate Member (Phosphorite Unit) Endocranial cast An aulopiform.
 
Stratodus[3] S. sp. Nahal Qazra, Nahal Zin, Nahal Ashosh & Oron Phosphate Member (Phosphorite & Phosphatic Carbonate units) Endocranial casts & bones An aulopiform.
 

Cartilaginous fish edit

Cartilaginous fish reported from the Mishash Formation
Genus Species Presence Stratigraphic member Material Notes Images
Anomotodon[7] A. plicatus Oron Phosphate Member (Phosphorite Unit) Teeth A goblin shark
A. sp. Nahal Zinim Phosphate Member (Phosphorite Unit) Teeth A goblin shark
Centroscymnus[7] cf. C. sp. Oron Phosphate Member (Phosphorite Unit) Teeth A sleeper shark
 
Centrosqualus[7] C. sp. Oron Phosphate Member (Phosphorite Unit) Teeth A dogfish shark
Chiloscyllium[7] C. sp. Oron Phosphate Member (Phosphatic Carbonate Unit) Teeth A carpet shark
 
Cretalamna[7] C. appendiculata Oron Phosphate Member (Phosphorite Unit) Teeth A megatooth shark
 
C. caraibaea Oron & Nahal Zinim Phosphate Member (Phosphorite Unit) Teeth Species reassigned to Serratolamna
C. maroccana Oron & Nahal Zinim Phosphate Member (Phosphorite Unit) Teeth A megatooth shark
C. sp. Oron Phosphate Member (Phosphatic Carbonate Unit) Teeth A megatooth shark
 
Cretascymnus[7] C. sp. Oron Phosphate Member (Phosphorite Unit) Teeth A sleeper shark
Cretodus[7] C. sp. Oron Phosphate Member (Phosphatic Carbonate Unit) Teeth A pseudoscapanorhynchid shark, small-sized member of the genus
 
Echinorhinidae indet.[7] Indeterminate Oron Phosphate Member (Phosphorite Unit) Teeth An echinorhinid shark
Ganopristis[7] G. leptodon Oron Phosphate Member (Phosphorite Unit) Teeth Genus now deemed a junior synonym of Sclerorhynchus
G. sp. Oron Phosphate Member (Phosphatic Carbonate Unit) Teeth
Heterodontus[7] H. sp. Oron Phosphate Member (Phosphorite Unit) Teeth A bullhead shark
 
Hexanchus[7] H. microdon Oron Phosphate Member (Phosphorite & Phosphatic Carbonate units) Numerous teeth A cow shark
Paraorthacodus[7] P. aff. nerviensis Oron Phosphate Member (Phosphorite Unit) Tooth A paraorthacodontid shark
 
Pristiophorus[7] P. sp. Oron Phosphate Member (Phosphorite Unit) Teeth A sawshark
 
Pseudocorax[7] P. aff. affinis Oron Phosphate Member (Phosphorite Unit) Many teeth A pseudocoracid shark
 
Pteroscyllium[7] P. sp. 1 Oron Phosphate Member (Phosphorite Unit) Teeth A catshark
P. sp. 2 Oron Phosphate Member (Phosphatic Carbonate Unit) Teeth A catshark
Rhinobatoidei n. gen.[7] Oron Phosphate Member (Phosphatic Carbonate Unit) Teeth A guitarfish
Rhinobatos[7] R. sp. 1 Oron Phosphate Member (Phosphorite Unit) Teeth A guitarfish
R. sp. 2 Oron Phosphate Member (Phosphorite Unit) Teeth A guitarfish
R. sp. 3 Oron Phosphate Member (Phosphatic Carbonate Unit) Teeth A guitarfish
Rhombodus[7] R. binkhorsti Nahal Zinim Phosphate Member (Phosphorite Unit) Teeth A myliobatiform ray
 
Scapanorhynchus[7] S. cf. raphiodon Oron Phosphate Member (Phosphorite Unit) Teeth A goblin shark
 
Sclerorhynchus[7] S. leptodon Oron Phosphate Member (Phosphorite & Phosphatic Carbonate units) Teeth A sawskate originally reported as Ganopristis leptodon
S. sp. Oron Phosphate Member (Phosphatic Carbonate Unit) Teeth A sawskate, some material originally reported as Ganopristis sp., also found in the Menuha Formation
Scyliorhinus[7] S. sp. Oron Phosphate Member (Phosphorite & Phosphatic Carbonate units) Teeth A catshark
 
Serratolamna[7] S. caraibaea Oron & Nahal Zinim Phosphate Member (Phosphorite Unit) Teeth A serratolamnid shark
Squalicorax[7] S. bassanii Oron Phosphate Member (Phosphorite Unit) Teeth An anacoracid shark
S. pristodontus Oron & Nahal Zinim Phosphate Member (Phosphorite & Phosphatic Carbonate units) Teeth An anacoracid shark
 
S. sp. Oron & Nahal Zinim Phosphate Member (Phosphorite & Phosphatic Carbonate units) Teeth An anacoracid shark
 
Squalus[7] S. sp. Oron Phosphate Member (Phosphorite Unit) Teeth A dogfish shark
 
Squatina[7] S. hassei Oron Phosphate Member (Phosphorite Unit) Teeth An angelshark
Triakidae[7] Triakid 1 Oron Phosphate Member (Phosphorite Unit) Teeth A houndshark
Triakid 2 Oron Phosphate Member (Phosphorite Unit) Teeth A houndshark

See also edit

References edit

  1. ^ Mishash Formation at Fossilworks.org
  2. ^ a b Soudry, David; Nathan, Yaacov; Ehrlich, Sarah (2013). "Geochemical diagenetic trends during phosphorite formation – economic implications: The case of the Negev Campanian phosphorites, Southern Israel". Sedimentology. 60 (3): 800–819. doi:10.1111/j.1365-3091.2012.01361.x. ISSN 0037-0746.
  3. ^ a b c d e f g h i j Lewy, Zeev (1995). "Upper Campanian natural endocranial casts of fish and of a pterosaur" (PDF). Geological Survey of Israel Technical Report: 1–21.
  4. ^ Soudry, D.; Nathan, Y.; Roded, R. (1985). "The Ashosh-Haroz facies and their significance for the Mishash palae-ogeography and phosphorite accumulation in the northernand central Negev". Israel Journal of Earth Sciences. 34: 211–220.
  5. ^ a b c Bardet, Nathalie; Desmares, Delphine; SáNchez-Pellicer, Raquel; Gardin, Silvia (2021-05-10). "Rediscovery of "Liodon" asiaticum Répelin, 1915, a Mosasaurini (Squamata, Mosasauridae, Mosasaurinae) from the Upper Cretaceous of the vicinity of Jerusalem – Biostratigraphical insights from microfossils". Comptes Rendus Palevol (20): 351–372. doi:10.5852/cr-palevol2021v20a20. ISSN 1777-571X.
  6. ^ Christiansen, Per; Bonde, Niels (2002). "A New Species of Gigantic Mosasaur from the Late Cretaceous of Israel". Journal of Vertebrate Paleontology. 22 (3): 629–644. ISSN 0272-4634.
  7. ^ a b c d e f g h i j k l m n o p q r s t u v w x y z Lewy, Zeev; Cappetta, Henri (1989-04-01). "Senonian Elasmobranch teeth from Israel Biostratigraphic and paleoenvironmental implications" (PDF). Neues Jahrbuch für Geologie und Paläontologie - Monatshefte: 212–222. doi:10.1127/njgpm/1989/1989/212.

Further reading edit

  • Y. Edelman-Furstenberg. 2008. Macrobenthic community structure in a high-productivity region: Upper Campanian Mishash Formation (Israel). Palaeogeography, Palaeoclimatology, Palaeoecology 261:58-77
  • P. Christiansen and N. Bonde. 2002. A new species of gigantic mosasaur from the Late Cretaceous of Israel. Journal of Vertebrate Paleontology 22(3):629-644
  • Z. Lewy and H. Cappetta. 1989. Senonian Elasmobranch teeth from Israel, biostratigraphic an paleoenvironmental implications. Neues Jahrbuch für Geologie und Paläontologie - Monatshefte 1989(4):212-222