Lina Member (Shale) (Paleocene to of Saudi Arabia)

Also known as East of the Great Nafud

Where: Saudi Arabia (28.8° N, 43.7° E: paleocoordinates 15.4° N, 36.1° E)

• coordinate based on nearby landmark

• local area-level geographic resolution

When: Lina Member (Aruma Formation), Late/Upper Paleocene to Late/Upper Paleocene (58.7 - 48.6 Ma)

• beds from the "upper 5 m" of the member, but not in the "topmost dolomite bed"

• group of beds-level stratigraphic resolution

Environment/lithology: marginal marine; dolomitic shale

• "very marginal position... close to emerged shallows (?) made up of the Arabian shield"
• dolomitic shale

Size classes: macrofossils, mesofossils

Primary reference: H. Thomas, J. Roger, M. Halawani, A. Memesh, P. Lebret, C. Bourdillon, E. Buffeteaut, H. Cappetta, C. Cavelier, D. Dutheil, H. Tong and D. Vaslet. 1999. Late Paleocene to Early Eocene marine vertebrates from the Uppermost Aruma Formation (northern Saudi Arabia): implications for the K-T transition. Comptes Rendus de l'Academie des Sciences, Serie II. Sciences de la Terre et des Planetes 329(12):905-912 [J. Alroy/J. Alroy/J. Alroy]more details

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 37182: authorized by John Alroy, entered by John Alroy on 03.03.2004, edited by Philip Mannion

Creative Commons license: CC BY (attribution)

Taxonomic list

 Myliobatiformes -
Dasyatoidea indet. Whitley 1940 stingray
 Myliobatiformes - Myliobatidae
Myliobatidae indet. Bonaparte 1838 eagle ray
compared to Rhombodus
 Rajiformes - Rhinobatidae
Rhinobatos sp. Link 1790 guitarfish
 Rajiformes -
Rhinobatoidei indet. Fowler 1941 guitarfish
 Galeomorphi -
Lamniformes indet. Berg 1958 mackerel shark
compared to Cretolamna maroccana
 Orectolobiformes -
Orectolobus sp. carpet shark
 Orectolobiformes - Ginglymostomatidae
Ginglymostoma sp. Müller and Henle 1838 nurse shark
Plicatoscyllium sp. Case and Cappetta 1997 nurse shark
 Carchariniformes - Scyliorhinidae
Scyliorhinidae indet. Gill 1862 cat shark
compared to Premontreia
 Salmoniformes - Enchodontidae
Enchodus sp. Agassiz 1843
 Tetraodontiformes - Eotrigonodontidae
cf. Eotrigonodon sp. Jain and Sahni 1983
teeth "resemble" this genus
 Testudines - Dermochelyidae
Arabemys crassiscutata n. gen. n. sp.
Arabemys crassiscutata n. gen. n. sp. Tong et al. 1999 leatherback
said to be a new genus