Wadi Ayun Musa (Triassic to of Jordan)

Where: Janoobiah, Jordan (31.8° N, 35.6° E: paleocoordinates 13.7° S, 35.9° E)

• coordinate estimated from map

• local area-level geographic resolution

When: Olenekian to Olenekian (251.2 - 242.0 Ma)

• Originally described as Carnian based on comparison of faunal composition with Raibl and Lettenkohle (Cox 1924), but some uncertainty expressed in this age subsequently, particularly due to the presence of Beneckeia (Cox 1932). Subsequent biochronological work has indicated an Olenekian-Anisian age for this section (Druckman 1974).

• group of beds-level stratigraphic resolution

Environment/lithology: marine; limestone

• "...at Ayun Musa, Coenothyris vulgaris is less abundant than the lamellibranchs, but the latter are for the most part poorly preserved. The limestone series is here seen to be underlain by 300' to 400' of yellow or greyish sandstone with some argillaceous beds. This sandstone yielded a species of Lingula and some lamellibranch casts. Some vague impressions may also indicate plant-remains." (Cox 1924)

Size class: macrofossils

Collection methods: "All the fossils referred to in the description have been presented to the Geological Department of the British Museum" (Cox 1924)

Primary reference: L. R. Cox. 1924. A Triassic fauna from the Jordan Valley. Annals and Magazine of Natural History 14(79):52-96 [A. Dunhill/B. Allen]more details

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 201987: authorized by Alex Dunhill, entered by Bethany Allen on 14.06.2019

Creative Commons license: CC BY (attribution)

Taxonomic list

Reptilia
 Eosauropterygia - Nothosauridae
Nothosaurus sp. Münster 1834 diapsid
British Museum, possible right humerus in two fragments
Lingulata
 Lingulida - Lingulidae
"Lingula cf. tenuissima" = Lingularia tenuissima
"Lingula cf. tenuissima" = Lingularia tenuissima Bronn 1837
British Museum B. 44803
Rhynchonellata
 Terebratulida - Dielasmatidae
Coenothyris vulgaris Schlotheim 1820
British Museum B. 44796-800
Cephalopoda
 Ceratitida - Hedenstroemiidae
cf. Beneckeia sp. von Mojsisovics 1882 ceratite
British Museum C. 25231-2
 Nautilida - Tainoceratidae
Pleuronautilus sp. von Mojsisovics 1882 nautiloid
British Museum C. 25230
Bivalvia
 Carditida - Myophoricardiidae
Myophoricardium lineatum von Wöhrmann 1889 clam
British Museum L. 33363
Myophoriopis jordanensis n. sp. Cox 1924 clam
British Museum L. 33365 (holotype)
 Thraciida - Burmesiidae
Burmesia posteroradiata n. sp. Cox 1924 clam
British Museum L. 33375
 Cardiida - Trapezidae
? Trapezium sp. Mühlfeld 1811 clam
British Museum L. 33343
 Lucinida - Lucinidae
"Schafhaeutlia subquadrata" = Fimbria (Sphaeriola) subquadrata
"Schafhaeutlia subquadrata" = Fimbria (Sphaeriola) subquadrata Parona 1889 clam
British Museum L. 33373-4
 Trigoniida - Myophoriidae
Myophoria transversa Bornemann 1856 clam
British Museum L. 33350-3
 Mytilida - Mytilidae
"Myoconcha aff. goldfussi" = Modiola goldfussi
"Myoconcha aff. goldfussi" = Modiola goldfussi Dunker 1849 mussel
British Museum L. 33342 (juvenile)
 Ostreida - Ostreidae
"Ostrea (Lopha) montiscaprilis" = Umbrostrea montiscaprilis
"Ostrea (Lopha) montiscaprilis" = Umbrostrea montiscaprilis Klipstein 1843 oyster
British Museum L. 33306-8, L. 33310
 Ostreida - Bakevelliidae
"Reubenia sp." = Hoernesia
"Reubenia sp." = Hoernesia Laube 1865 oyster
British Museum L. 33305
 Ostreida - Halobiidae
Daonella sp. Mojsisovics 1874 oyster
British Museum L. 33320
 Pectinida - Anomiidae
"Plicatula (Pseudoplacunopsis) fissistriata" = Placunopsis fissistriata, Placunopsis cf. ostracina
"Plicatula (Pseudoplacunopsis) fissistriata" = Placunopsis fissistriata Winckler 1861 scallop
British Museum L. 33318
Placunopsis cf. ostracina Schlotheim 1820 scallop
British Museum L. 33319
 Pectinida - Entoliidae
"Pecten (Syncyclonema) aff. discites" = Entolium discites
"Pecten (Syncyclonema) aff. discites" = Entolium discites Schlotheim 1820 scallop
British Museum L. 33326
 Myalinida - Myalinidae
? Myalina sp. de Koninck 1842 clam
British Museum L. 33333