PBDB Collection

Madashon (Jurassic to of Somalia)

Where: Somalia (11.0° N, 49.0° E: paleocoordinates 12.3° S, 33.6° E)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Bihen Limestone Formation, Callovian to Callovian (166.1 - 157.3 Ma)

• 2 levels: lower Callovian unit and upper Argovian unit

• group of beds-level stratigraphic resolution

Environment/lithology: shallow subtidal; lithified limestone

Size class: macrofossils

Primary reference: L. R. Cox. 1935. Jurassic Gastropoda and Lamellibranchia. The Mesozoic Palaeontology of British Somaliland, Geology and Palaeontology of British Somaliland, II 148-197 [W. Kiessling/U. Merkel]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 93014: authorized by Wolfgang Kiessling, entered by Uta Merkel on 21.12.2009

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names

Anthozoa
Scleractinia - Stylinidae	Stylina lortphillipsi² Stylina lortphillipsi² Gregory 1896 stony coral
Demospongiae
Agelasida - Milleporellidae	"Milleporidium somaliense" = Steineria somaliensis² "Milleporidium somaliense" = Steineria somaliensis² Zuffardi-Comerci 1931 demosponge
Rhynchonellata
Terebratulida - Loboidothyrididae	Sphaeroidothyris browni¹, Bihenithyris weiri n. sp.¹, Bihenithyris barringtoni n. gen. n. sp.¹ Sphaeroidothyris browni¹ Muir-Wood 1935 Bihenithyris weiri n. sp.¹ Muir-Wood 1935 Bihenithyris barringtoni n. gen. n. sp.¹ Muir-Wood 1935
Terebratulida - Trigonithyrididae	Trigonithyris eruduwensis¹ Trigonithyris eruduwensis¹ Muir-Wood 1935
Rhynchonellida - Septirhynchiidae	Septirhynchia madashonensis n. sp.¹ Septirhynchia madashonensis n. sp.¹ Muir-Wood 1935
Rhynchonellida - Tetrarhynchiidae	Daghanirhynchia daghaniensis¹, Somalirhynchia tumida n. sp.¹, Somalirhynchia africana¹, Somalirhynchia bihendulensis¹, Burmirhynchia cavagnarii¹ Daghanirhynchia daghaniensis¹ Muir-Wood 1935 Somalirhynchia tumida n. sp.¹ Muir-Wood 1935 Somalirhynchia africana¹ Weir 1925 Somalirhynchia bihendulensis¹ Weir 1925 Burmirhynchia cavagnarii¹ Diaz-Romero 1931
Bivalvia
Ostreida - Gryphaeidae	Gryphaea costellata, "Ostrea (Liostrea) dubiensis" = Praeexogyra dubiensis Gryphaea costellata Douvillé 1916 oyster "Ostrea (Liostrea) dubiensis" = Praeexogyra dubiensis Contejean 1859 oyster
Ostreida - Eligmidae	Eligmus jabbokensis, Eligmus polytypus, Eligmus weiri Eligmus jabbokensis oyster Eligmus polytypus Eudes-Deslongchamps 1856 oyster Eligmus weiri Cox 1935 oyster
Pectinida - Limidae	"Lima (Plagiostoma) harronis" = Plagiostoma harronis "Lima (Plagiostoma) harronis" = Plagiostoma harronis Dacque 1905 file clam
Pectinida - Pectinoidae	Camptonectes browni n. sp. Camptonectes browni n. sp. Cox 1935 scallop
Mytilida - Mytilidae	"Mytilus (Arcomytilus) laitmairensis" = Arcomytilus laitmairensis, "Mytilus (Modiolus) imbricatus" = Modiolus (Modiolus) imbricatus "Mytilus (Arcomytilus) laitmairensis" = Arcomytilus laitmairensis de Loriol 1883 mussel "Mytilus (Modiolus) imbricatus" = Modiolus (Modiolus) imbricatus Sowerby 1818 mussel

¹Muir-Wood 1935; ²Thomas 1935