Khashm al Qaddiyah (Jurassic of Saudi Arabia)

Where: Saudi Arabia (24.5° N, 46.4° E: paleocoordinates 1.7° S, 34.0° E)

• coordinate stated in text

When: Tuwaiq Mountain Formation, Callovian (166.1 - 163.5 Ma)

Environment/lithology: platform or shelf-margin reef; marl and limestone

• "wide shallow shelf on the western passive margin of the Neo-Tethys Ocean on which carbonates accumulated"
• "marls with thin fossiliferous limestones intercalations."

Size class: macrofossils

Primary reference: M. Zakhera, M. El-Hedeny, A. El-Sabbagh and S. Al Farraj. 2017. Callovian–Oxfordian bivalves from central Saudi Arabia: Systematic paleontology and paleobiogeography. Journal of African Earth Sciences 130:60-75 [W. Kiessling/A. Watson]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 234953: authorized by Wolfgang Kiessling, entered by Alissa Watson on 24.05.2024

Creative Commons license: CC BY (attribution)

Taxonomic list

• Bivalves, gastropods, brachiopods and corals are reported to be present.
Show authors, comments, and common names
Bivalvia
 Mytilida - Crenellidae
Musculus (Musculus) somaliensis
 Mytilida - Mytilidae
Arcomytilus laitmairensis, Modiolus (Modiolus) bipartitus
Arcomytilus laitmairensis de Loriol 1883 mussel
Modiolus (Modiolus) bipartitus Sowerby 1818 mussel
 Arcida - Parallelodontidae
"Grammatodon (Cosmetodon) elongatum" = Cosmetodon
"Grammatodon (Cosmetodon) elongatum" = Cosmetodon clam
 Ostreida - Eligmidae
Eligmus rollandi
Eligmus rollandi Douvillé 1907 oyster
 Ostreida - Gryphaeidae
Liostrea multiformis, "Nanogyra nana" = Nanogyra (Nanogyra) nana
Liostrea multiformis Koch and Dunker 1837 oyster
"Nanogyra nana" = Nanogyra (Nanogyra) nana Sowerby 1822 oyster
 Ostreida - Palaeolophidae
Actinostreon erucum, Actinostreon marshi, Actinostreon gregareum
Actinostreon marshi Sowerby 1814 oyster
Actinostreon gregareum Sowerby 1816 oyster
 Pectinida - Limidae
"Limea (Pseudolimea) duplicata" = Pseudolimea duplicata
"Limea (Pseudolimea) duplicata" = Pseudolimea duplicata Sowerby 1814 file clam
 Pectinida - Pectinoidae
Eopecten velatus
Eopecten velatus Goldfuss 1833 scallop
 Lucinida - Mactromyidae
Mactromya sp.
Mactromya sp. Agassiz 1843 clam
 Megalodontida - Ceratomyopsidae
Ceratomyopsis ? arabica
 Pholadida - Ceratomyidae
Ceratomya striata
Ceratomya striata Sowerby 1815 clam
 Pholadomyida - Pholadomyidae
"Pholadomya (Pholadomya) inornata" = Homomya inornata, Pholadomya (Bucardiomya) lirata, Pholadomya (Pholadomya) deltoidea, Pholadomya (Pholadomya) socialis, Pholadomya (Bucardiomya) aubryi
"Pholadomya (Pholadomya) inornata" = Homomya inornata Sowerby 1837 clam