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Shaqra - Dhruma - Dhibi Lst., Riyadh Region, Saudi Arabia

GroupShaqra
FormationDhruma
MemberDhibi Lst.
Age:170 - 168 Ma
Middle Jurassic
IntervalBajocian
Tectonic SettingCratonic basin
Lithologylimestone
Number of Collections6
Number of Occurrences42

Recorded Sample Locations

LocationRegionStratigraphic Name
Shaqra Group Riyadh Region, Saudi ArabiaShaqra - Dhruma - Dhibi Lst.
Shaqra Group Riyadh Region, Saudi ArabiaShaqra - Dhruma - Dhibi Lst.
Shaqra Group Riyadh Region, Saudi ArabiaShaqra - Dhruma - Dhibi Lst.
Shaqra Group Riyadh Region, Saudi ArabiaShaqra - Dhruma - Dhibi Lst.
Shaqra Group Riyadh Region, Saudi ArabiaShaqra - Dhruma - Dhibi Lst.

Associated Units

Stratigraphic NameAgeLithologyOccurrence Records
Shaqra - Dhruma168 - 165 Ma
Middle Jurassic
limestone1203
Shaqra - Tuwaiq Mt.Lst.166 - 164 Ma
Middle Jurassic
limestone, framestone532

Recorded Fossils

Accepted NameHierarchyAge
Monsardithyris ventricosa
species
7Animalia : Brachiopoda : Rhynchonellata : Terebratulida : Lissajousithyrididae : Monsardithyris : Monsardithyris ventricosa170.3 - 168.3 Ma
Middle Jurassic
Tubithyris chouberti
species
7Animalia : Brachiopoda : Rhynchonellata : Terebratulida : Lobothyrididae : Tubithyris : Tubithyris chouberti170.3 - 168.3 Ma
Middle Jurassic
Holectypus sp.
genus
6Animalia : Echinodermata : Echinoidea : Holectypoida : Holectypidae : Holectypus170.3 - 168.3 Ma
Middle Jurassic
Nucleolites sp.
genus
6Animalia : Echinodermata : Echinoidea : Cassiduloida : Nucleolitidae : Nucleolites170.3 - 168.3 Ma
Middle Jurassic
Acrosalenia sp.
genus
6Animalia : Echinodermata : Echinoidea : Salenioida : Acrosaleniidae : Acrosalenia170.3 - 168.3 Ma
Middle Jurassic
Fimbria lajoyei
species
7Animalia : Mollusca : Bivalvia : Lucinida : Lucinidae : Fimbria : Fimbria lajoyei170.3 - 168.3 Ma
Middle Jurassic
Pseudisocardia macfadyeni
species
7Animalia : Mollusca : Bivalvia : Venerida : Pseudisocardia : Pseudisocardia macfadyeni170.3 - 168.3 Ma
Middle Jurassic
Inoperna sp.
genus
6Animalia : Mollusca : Bivalvia : Mytilida : Mytilidae : Inoperna170.3 - 168.3 Ma
Middle Jurassic
Modiolus bipartitus
species
7Animalia : Mollusca : Bivalvia : Mytilida : Mytilidae : Modiolus : Modiolus bipartitus170.3 - 168.3 Ma
Middle Jurassic
Actinostreon gregareum
species
7Animalia : Mollusca : Bivalvia : Ostreida : Palaeolophidae : Actinostreon : Actinostreon gregareum170.3 - 168.3 Ma
Middle Jurassic
Entolium (Entolium) corneolum
species
7Animalia : Mollusca : Bivalvia : Pectinida : Entolium : Entolium (Entolium) corneolum170.3 - 168.3 Ma
Middle Jurassic
Plagiostoma sp.
genus
6Animalia : Mollusca : Bivalvia : Limida : Limidae : Plagiostoma170.3 - 168.3 Ma
Middle Jurassic
Crassadoma gigantea
species
7Animalia : Mollusca : Bivalvia : Pectinida : Pectinidae : Crassadoma : Crassadoma gigantea170.3 - 168.3 Ma
Middle Jurassic
Plagiostoma giganteum
species
7Animalia : Mollusca : Bivalvia : Pectinida : Limidae : Plagiostoma : Plagiostoma giganteum170.3 - 168.3 Ma
Middle Jurassic
Oxytoma sp.
genus
6Animalia : Mollusca : Bivalvia : Pectinida : Oxytomidae : Oxytoma170.3 - 168.3 Ma
Middle Jurassic
Chlamys sp.
genus
6Animalia : Mollusca : Bivalvia : Pectinida : Pectinidae : Chlamys170.3 - 168.3 Ma
Middle Jurassic
Chlamys textoria
species
7Animalia : Mollusca : Bivalvia : Pectinida : Pectinidae : Chlamys : Chlamys textoria170.3 - 168.3 Ma
Middle Jurassic
Spondylopecten sp.
genus
6Animalia : Mollusca : Bivalvia : Pectinida : Pectinidae : Spondylopecten170.3 - 168.3 Ma
Middle Jurassic
Ceratomya concentrica
species
7Animalia : Mollusca : Bivalvia : Myida : Ceratomyidae : Ceratomya : Ceratomya concentrica170.3 - 168.3 Ma
Middle Jurassic
Homomya gibbosa
species
7Animalia : Mollusca : Bivalvia : Pholadomyidae : Homomya : Homomya gibbosa170.3 - 168.3 Ma
Middle Jurassic
Pholadomya (Bucardiomya) somaliensis
species
7Animalia : Mollusca : Bivalvia : Pholadomyida : Pholadomyidae : Pholadomya : Pholadomya (Bucardiomya) somaliensis170.3 - 168.3 Ma
Middle Jurassic
Trigonia pullus
species
7Animalia : Mollusca : Bivalvia : Trigoniida : Trigoniidae : Trigonia : Trigonia pullus170.3 - 168.3 Ma
Middle Jurassic
Bradfordia sp.
genus
6Animalia : Mollusca : Cephalopoda : Ammonoidea : Oppeliidae : Bradfordia170.3 - 168.3 Ma
Middle Jurassic
Ermoceras sp.
genus
6Animalia : Mollusca : Cephalopoda : Ammonoidea : Stephanoceratidae : Ermoceras170.3 - 168.3 Ma
Middle Jurassic
Ermoceras (Kosmermoceras) elegans
species
7Animalia : Mollusca : Cephalopoda : Ammonitida : Stephanoceratidae : Kosmermoceras : Ermoceras (Kosmermoceras) elegans170.3 - 168.3 Ma
Middle Jurassic
Ermoceras (Kosmermoceras) magnificum
species
7Animalia : Mollusca : Cephalopoda : Ammonitida : Stephanoceratidae : Kosmermoceras : Ermoceras (Kosmermoceras) magnificum170.3 - 168.3 Ma
Middle Jurassic
Ermoceras (Kosmermoceras) runcinatum
species
7Animalia : Mollusca : Cephalopoda : Ammonitida : Stephanoceratidae : Kosmermoceras : Ermoceras (Kosmermoceras) runcinatum170.3 - 168.3 Ma
Middle Jurassic
Ermoceras (Telermoceras) coronatiforme
species
7Animalia : Mollusca : Cephalopoda : Ammonitida : Stephanoceratidae : Telermoceras : Ermoceras (Telermoceras) coronatiforme170.3 - 168.3 Ma
Middle Jurassic
Ermoceras (Telermoceras) coronatoides
species
7Animalia : Mollusca : Cephalopoda : Ammonitida : Stephanoceratidae : Telermoceras : Ermoceras (Telermoceras) coronatoides170.3 - 168.3 Ma
Middle Jurassic
Ermoceras (Telermoceras) splendens
species
7Animalia : Mollusca : Cephalopoda : Ammonitida : Stephanoceratidae : Telermoceras : Ermoceras (Telermoceras) splendens170.3 - 168.3 Ma
Middle Jurassic
Ermoceras deserti
species
7Animalia : Mollusca : Cephalopoda : Ammonoidea : Stephanoceratidae : Ermoceras : Ermoceras deserti170.3 - 168.3 Ma
Middle Jurassic
Stephanoceras sp.
genus
6Animalia : Mollusca : Cephalopoda : Ammonoidea : Stephanoceratidae : Stephanoceras170.3 - 168.3 Ma
Middle Jurassic
Natica sp.
genus
6Animalia : Mollusca : Gastropoda : Littorinimorpha : Naticidae : Natica170.3 - 168.3 Ma
Middle Jurassic
Obornella sp.
genus
6Animalia : Mollusca : Gastropoda : Pleurotomariida : Pleurotomariidae : Obornella170.3 - 168.3 Ma
Middle Jurassic
Pleurotomaria sp.
genus
6Animalia : Mollusca : Gastropoda : Trochida : Microdomatidae : Pleurotomaria170.3 - 168.3 Ma
Middle Jurassic

References

Manivit J., Le Nindre Y.-M., et al (1990) Le Jurassique D`Arabie Centrale, Document du BRGM 4 194, 25-519
Kiessling W. (2003) Personal data
Data courtesy of: PBDB: The Paleobiology Database, Creative Commons CC-BY licenced. , GBIF: the Global Biodiversity Information Facility, various licences, iDigBio, various licences, and EOL: The Encyclopedia of Life (Open Data Public Domain). Because fossils are made of minerals too!
 
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