Jabal Umm Himar locality 37 (Paleocene of Saudi Arabia)

Where: Makkah, Saudi Arabia (21.2° N, 41.4° E: paleocoordinates 6.7° N, 32.4° E)

• coordinate stated in text

• small collection-level geographic resolution

When: Middle Member (Umm Himar Formation), Paleocene (66.0 - 56.0 Ma)

• Lower 2-3 m of the Middle Member of Umm Himar Formation

• bed-level stratigraphic resolution

Environment/lithology: lagoonal; massive, gypsiferous mudstone

• Low-energy estuarine or lagoonal environment
• Massive, thick-bedded mudstone, containing detritus, abundant montmorillonite, illite, and subordinate gypsum

Size classes: macrofossils, mesofossils

Collected in 1971-1979; reposited in the USGS

Primary reference: C. T. Madden, F. C. Whitmore Jr., D. L. Schmidt and I. M. Naqvi. 1995. The Umm Himar Formation (Paleocene) of Saudi Arabia and Associated Strata: Stratigraphy, Vertebrate Fauna, and Paleoenvironment. In F. C. Whitmore Jr., C. T. Madden (eds.), U.S. Geological Survey Bulletin 2093(A):1-19 [P. Mannion/P. Mannion/P. Mannion]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 140969: authorized by Philip Mannion, entered by Philip Mannion on 19.03.2013

Creative Commons license: CC BY (attribution)

Taxonomic list

Chondrichthyes
 Myliobatiformes - Myliobatidae
Myliobatis dixoni Agassiz 1843 eagle ray
 Rajiformes - Torpedinidae
Eotorpedo hilgendorfi Jaekel 1904 torpedo
 Lamniformes - Odontaspididae
Odontaspis substriata sand tiger shark
 Orectolobiformes - Ginglymostomatidae
Actinopteri
 Neopterygii -
Amiiformes indet. Hay 1929 bowfin
Reptilia
 Loricata - Dyrosauridae
Dyrosauridae indet. de Steffano 1903 crocodilian
Rhabdognathus sp. Swinton 1930 crocodilian
USGS 37-CR-l (partly articulated skeleton, including posterior part of braincase, postorbital bone, parts of the rostrum, quadrate, and articular region of the mandible, and a large part of the postcranial skeleton)