PBDB Collection

UCLA loc. 4131, Jalama Creek: Late Campanian, California

List of taxa

Where & when

Geology

Taphonomy & methods

Metadata & references

Taxonomic list

Gastropoda - Neogastropoda - Volutidae

	Volutoderma ? magna Packard 1922		r category
	originally entered as "Volutoderma ? magna"
	= Volutoderma ynezae Saul and Squires 2008	Saul and Squires 2008

	Volutoderma cf. averillii (Gabb 1864)		r category
	Volutoderma sp. cf. V. averillii - originally entered as "Volutoderma cf. averillii"
Bivalvia - Arcida - Glycymerididae

	Glycymeris suciensis McLellan 1927		u category
Bivalvia - Trigoniida - Steinmanellidae

	Trigonia hemphilli Anderson 1958		u category
Bivalvia - Cardiida - Arcticidae

	Etea occidentalis Dailey and Popenoe 1966		r category
Bivalvia - Cardiida - Mactridae

	Cymbophora ? gabbiana (Anderson 1902)		r category
	originally entered as "Cymbophora ? gabbiana"
Bivalvia - Cardiida - Ungulinidae

	Diplodonta davisi Dailey and Popenoe 1966		r category
Bivalvia - Cardiida - Veneridae

	Calva varians (Gabb 1864)		a category
	= Calva (Egelicalva) crassa Saul and Popenoe 1992	Saul and Popenoe 1992
Bivalvia - Cardiida - Corbiculidae

	Corbicula astartoides Dailey and Popenoe 1966		u category
see common names

Period:	Cretaceous	Epoch:	Late Cretaceous
Stage:	Campanian	10 m.y. bin:	Cretaceous 7
*Epoch:	Senonian
*International age/stage:	Campanian - Maastrichtian
Key time interval:	Late Campanian
Age range of interval:	83.6 - 72.1 m.y. ago
* legacy (obsolete) database fields

Formation:	Jalama	Member:	V
Stratigraphic resolution:	bed
Stratigraphy comments: scale of strat. resolution may be couple of beds. JA: the Jalama Formation is lower upper Campanian according to Squires and Saul 2003

Primary lithology:	gray,yellow lithified sandstone
Secondary lithology:	conglomerate
Environment:	offshore
Geology comments: "180-230' thick. Hard, light-gray to buff, bedded arkosic sandstone; lenses of pebble conglomerate near base."

Modes of preservation:	body
Size of fossils:	macrofossils

Collection methods:	mechanical,field collection
Reason for describing collection:	taxonomic analysis
Taxonomic list comments:Abundances: R (rare) 1-2 specs., U (uncommon) 3-10 specs., C (common) 11-25 specs., A (abundant) 26+ specs.

75750		L. R. Saul and W. P. Popenoe. 1992. Pacific Slope Cretaceous bivalves of the genus Calva. Contributions in Science, Los Angeles County Museum 433:1-68 [J. Marcot/J. Marcot]
63311		L. R. Saul and R. L. Squires. 2008. Volutoderminae (Gastropoda: Volutidae) of Coniacian through Maastrichtian age from the North American Pacific Slope. Journal of Paleontology 82(2):213-237 [P. Wagner/P. Wagner]