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Guwayza - Oolithic Limestone, Oman

FormationGuwayza
MemberOolithic Limestone
Age:168 - 161 Ma
Jurassic
IntervalLate Bajocian - Early Bathonian
Lithologylimestone/"shale", "limestone"
Number of Collections5
Number of Occurrences39

Recorded Sample Locations

LocationRegionStratigraphic Name
Wadi Mu'aydin Section Ad Dakhiliyah Governorate, OmanGuwayza - Oolithic Limestone
Wadi Saal Section OmanGuwayza - Oolithic limestone
Zukayt Section Ad Dakhiliyah Governorate, OmanGuwayza - Oolithic limestone
Qabil Section Ad Dhahirah Governorate, OmanGuwayza - Oolithic limestone
Al Dhaby Section Ad Dakhiliyah Governorate, OmanGuwayza - Oolithic limestone

Associated Units

Stratigraphic NameAgeLithologyOccurrence Records
Guwayza - Tawi Sadh170 - 168 Ma
Middle Jurassic
chert/"limestone", chert/"shale", "limestone", "limestone"/chert, "limestone"/"shale"72
Sid'r - Lower133 - 129 Ma
Early/Lower Cretaceous
limestone/chert, "limestone", chert/"shale", "limestone"/radiolarite136
Sid'r - Upper136 - 130 Ma
Early/Lower Cretaceous
chert9
Wahrah - Red Bedded Chert130 - 125 Ma
Early/Lower Cretaceous
chert/"shale"88
Wahrah - Variegated Mudstone156 - 151 Ma
Jurassic
limestone/chert80

Recorded Fossils

Accepted NameHierarchyAge
Hexasaturnalis sp.
genus
6Chromista : Radiozoa : Polycystina : Spumellaria : Saturnalidae : Hexasaturnalis168.3 - 161.2 Ma
Jurassic
Palinandromeda sp.
genus
6Retaria : Radiolaria : Nassellaria : Amphipyndacidae : Palinandromeda171.6 - 164.7 Ma
Middle Jurassic
Palinandromeda depressa
species
7Chromista : Radiozoa : Polycystina : Nassellaria : Amphipyndacidae : Palinandromeda : Palinandromeda depressa168.3 - 161.2 Ma
Jurassic
Archaeodictyomitra rigida
species
7Chromista : Radiozoa : Polycystina : Nassellaria : Archaeodictyomitridae : Archaeodictyomitra : Archaeodictyomitra rigida171.6 - 167.7 Ma
Middle Jurassic
Eucyrtidiellum unumaense
species
7Chromista : Radiozoa : Polycystina : Nassellaria : Eucyrtidiellidae : Eucyrtidiellum : Eucyrtidiellum unumaense171.6 - 164.7 Ma
Middle Jurassic
Stichocapsa robusta
species
7Chromista : Radiozoa : Polycystina : Nassellaria : Eucyrtidiidae : Stichocapsa : Stichocapsa robusta171.6 - 164.7 Ma
Middle Jurassic
Stichomitra takanoensis
species
7Chromista : Radiozoa : Polycystina : Nassellaria : Eucyrtidiidae : Stichomitra : Stichomitra takanoensis168.3 - 161.2 Ma
Jurassic
Hsuum maxwelli
species
7Chromista : Radiozoa : Polycystina : Nassellaria : Hsuidae : Hsuum : Hsuum maxwelli171.6 - 167.7 Ma
Middle Jurassic
Linaresia sp.
genus
6Chromista : Radiozoa : Polycystina : Nassellaria : Hsuidae : Linaresia171.6 - 164.7 Ma
Middle Jurassic
Parahsuum sp.
genus
6Retaria : Radiolaria : Nassellaria : Hsuidae : Parahsuum171.6 - 164.7 Ma
Middle Jurassic
Parahsuum officerense
species
7Chromista : Radiozoa : Polycystina : Nassellaria : Hsuidae : Parahsuum : Parahsuum officerense171.6 - 164.7 Ma
Middle Jurassic
Transhsuum sp.
genus
6Chromista : Radiozoa : Polycystina : Nassellaria : Hsuidae : Transhsuum168.3 - 161.2 Ma
Jurassic
Mirifusus guadalupensis
species
7Chromista : Radiozoa : Polycystina : Nassellaria : Parvicingulidae : Mirifusus : Mirifusus guadalupensis168.3 - 161.2 Ma
Jurassic
Svinitzium sp.
genus
6Chromista : Radiozoa : Polycystina : Nassellaria : Parvicingulidae : Svinitzium168.3 - 161.2 Ma
Jurassic
Spongocapsula sp.
genus
6Chromista : Radiozoa : Polycystina : Nassellaria : Spongocapsulidae : Spongocapsula171.6 - 167.7 Ma
Middle Jurassic
Podobursa helvetica
species
7Retaria : Radiolaria : Nassellaria : Syringocapsidae : Podobursa : Podobursa helvetica171.6 - 164.7 Ma
Middle Jurassic
Praewilliriedellum sp.
genus
6Chromista : Radiozoa : Polycystina : Nassellaria : Williriedellidae : Praewilliriedellum171.6 - 167.7 Ma
Middle Jurassic
Praewilliriedellum spinosum
species
7Chromista : Radiozoa : Polycystina : Nassellaria : Williriedellidae : Praewilliriedellum : Praewilliriedellum spinosum171.6 - 167.7 Ma
Middle Jurassic
Striatojaponocapsa sp.
genus
6Retaria : Radiolaria : Nassellaria : Williriedellidae : Striatojaponocapsa171.6 - 164.7 Ma
Middle Jurassic
Striatojaponocapsa plicarum
species
7Chromista : Radiozoa : Polycystina : Nassellaria : Williriedellidae : Striatojaponocapsa : Striatojaponocapsa plicarum171.6 - 167.7 Ma
Middle Jurassic
Angulobracchia digitata
species
7Chromista : Radiozoa : Polycystina : Spumellaria : Angulobracchiidae : Angulobracchia : Angulobracchia digitata171.6 - 164.7 Ma
Middle Jurassic
Paronaella kotura
species
7Chromista : Radiozoa : Polycystina : Spumellaria : Angulobracchiidae : Paronaella : Paronaella kotura171.6 - 164.7 Ma
Middle Jurassic
Paronaella mulleri
species
7Chromista : Radiozoa : Polycystina : Spumellaria : Angulobracchiidae : Paronaella : Paronaella mulleri171.6 - 164.7 Ma
Middle Jurassic
Archaeospongoprunum imlayi
species
7Chromista : Radiozoa : Polycystina : Spumellaria : Archaeospongoprunidae : Archaeospongoprunum : Archaeospongoprunum imlayi168.3 - 161.2 Ma
Jurassic
Emiluvia sp.
genus
6Chromista : Radiozoa : Polycystina : Spumellaria : Emiluviidae : Emiluvia171.6 - 164.7 Ma
Middle Jurassic
Higumastra imbricata
species
7Chromista : Radiozoa : Polycystina : Spumellaria : Hagiastridae : Higumastra : Higumastra imbricata168.3 - 161.2 Ma
Jurassic
Tetraditryma sp.
genus
6Chromista : Radiozoa : Polycystina : Spumellaria : Hagiastridae : Tetraditryma171.6 - 164.7 Ma
Middle Jurassic
Tetraditryma corralitosensis
species
7Chromista : Radiozoa : Polycystina : Spumellaria : Hagiastridae : Tetraditryma : Tetraditryma corralitosensis171.6 - 164.7 Ma
Middle Jurassic
Tetraditryma pseudoplena
species
7Chromista : Radiozoa : Polycystina : Spumellaria : Hagiastridae : Tetraditryma : Tetraditryma pseudoplena168.3 - 161.2 Ma
Jurassic
Acaeniotylopsis variatus
species
7Chromista : Radiozoa : Polycystina : Spumellaria : Parvivaccidae : Acaeniotylopsis : Acaeniotylopsis variatus168.3 - 161.2 Ma
Jurassic
Leugeo sp.
genus
6Chromista : Radiozoa : Polycystina : Spumellaria : Parvivaccidae : Leugeo171.6 - 164.7 Ma
Middle Jurassic
Leugeo ordinarius
species
7Chromista : Radiozoa : Polycystina : Spumellaria : Parvivaccidae : Leugeo : Leugeo ordinarius171.6 - 164.7 Ma
Middle Jurassic
Teichertus sp.
genus
6Chromista : Radiozoa : Polycystina : Nassellaria : Plagiacanthidae : Teichertus171.6 - 164.7 Ma
Middle Jurassic
Tritrabs ewingi
species
7Chromista : Radiozoa : Polycystina : Spumellaria : Tritrabidae : Tritrabs : Tritrabs ewingi171.6 - 164.7 Ma
Middle Jurassic

References

Blechschmidt I., Dumitrica P., et al (2004) Stratigraphic architecture of the northern Oman continental margin - Mesozoic Hamrat Duru Group Hawasina complex, Oman, GeoArabia 9 2, 81-132
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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