PBDB Collection

Shaqra Group (Hanifa Fm.) (Jurassic of Saudi Arabia)

Where: Saudi Arabia (23.5° N, 46.9° E: paleocoordinates 2.9° S, 33.8° E)

• coordinate stated in text

• outcrop-level geographic resolution

When: Hawtah Mb. 3 Member (Hanifa Formation), Oxfordian (163.5 - 157.3 Ma)

Environment/lithology: lagoonal or restricted shallow subtidal; lithified, argillaceous limestone

• The Hanifa Formation consisting of a lower carbonate and clayey part with more confined environment and a more calcareous and locally reefal upper part shows a further transgressive trend.

Size classes: macrofossils, microfossils

Collection methods: bulk, mechanical,

Primary reference: J. Manivit, Y.-M. Le Nindre, and D. Vaslet. 1990. Le Jurassique D`Arabie Centrale. Document du BRGM 4(194):25-519 [F. Fursich/S. Hicks/W. Kiessling]more details

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 45759: authorized by Franz Fursich, entered by Simone Hicks on 30.11.2004

Creative Commons license: CC BY (attribution)

Taxonomic list

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Rhynchonellata
Terebratulida - Terebratulidae	Terebratula sp. Terebratula sp. Müller 1776
Gastropoda
Sorbeoconcha - Tylostomatidae	Pterodonta sp. Pterodonta sp. d'Orbigny 1843 snail
Sorbeoconcha - Aporrhaidae	Aporrhais sp. Aporrhais sp. da Costa 1778 snail
Bivalvia
Mytilida - Mytilidae	Arcomytilus laitmairensis, "Modiolus imbricatus" = Modiolus (Modiolus) imbricatus, Inoperna sowerbyana, Mytilus cf. jurensis Arcomytilus laitmairensis de Loriol 1883 mussel "Modiolus imbricatus" = Modiolus (Modiolus) imbricatus Sowerby 1818 mussel Inoperna sowerbyana mussel Mytilus cf. jurensis Merian 1836 mussel
Pectinida - Entoliidae	"Entolium cf. corneolum" = Entolium (Entolium) corneolum "Entolium cf. corneolum" = Entolium (Entolium) corneolum Young and Bird 1828 scallop
Ostreida - Palaeolophidae	"Lopha solitaria" = Actinostreon gregareum "Lopha solitaria" = Actinostreon gregareum Sowerby 1816 oyster
Ostreida - Gryphaeidae	"Nanogyra nana" = Nanogyra (Nanogyra) nana, Gryphaea costellata "Nanogyra nana" = Nanogyra (Nanogyra) nana Sowerby 1822 oyster Gryphaea costellata Douvillé 1916 oyster
Arcida - Parallelodontidae	Parallelodon hirsonensis, Parallelodon rugosus Parallelodon hirsonensis d'Archiac 1843 clam Parallelodon rugosus Buckman 1845 clam
Megalodontida - Dicerocardiidae	Pseudisocardia cf. macfadyeni Pseudisocardia cf. macfadyeni Cox 1935 clam
Megalodontida - Ceratomyopsidae	Ceratomyopsis cf. arabica Ceratomyopsis cf. arabica Cox 1935 clam
Pholadida - Pleuromyidae	Pleuromya cf. alduini Pleuromya cf. alduini Brongniart 1821 clam
Pholadida - Ceratomyidae	Ceratomya excentrica Ceratomya excentrica Roemer 1836 clam
Pholadomyida - Pholadomyidae	Pholadomya cf. aubri, "Pholadomya protei" = Pholadomya (Bucardiomya) protei, Pholadomya lirata, Homomya cf. gibbosa Pholadomya cf. aubri clam "Pholadomya protei" = Pholadomya (Bucardiomya) protei Brongniart 1821 clam Pholadomya lirata Sowerby 1818 clam Homomya cf. gibbosa Sowerby 1814 clam
Lucinida - Mactromyidae	Mactromya cf. crassa Mactromya cf. crassa Agassiz 1845 clam
Lucinida - Lucinidae	Mesomiltha bellona Mesomiltha bellona d'Orbigny 1850 clam
Carditida - Astartidae	Coelopis cf. lunata Coelopis cf. lunata clam