Los Gatos Creek [Moreno Fm] (Cretaceous of the United States)

Where: Fresno County, California (36.2° N, 120.1° W: paleocoordinates 42.2° N, 95.6° W)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Neodesmoceras catarinae ammonoid zone, Moreno Formation (Great Valley Group), Maastrichtian (72.1 - 66.0 Ma)

• LITHOSTRATIGRAPHY: From the Moreno Fm of the Asuncion Gp, for which lithostratigraphic relations are unknown. AGE: Maastrichtian, on the basis of ammonoid biostratigraphy. STRATIGRAPHIC POSITION: From higher beds within the group, which overlies carbonaceous shales.

• bed-level stratigraphic resolution

Environment/lithology: marine; lithified sandstone and lithified, sandy shale

• ENVIRONMENT: Siliciclastic marine setting.
• LITHOLOGY: Bedded sandstones and sandy shale. LITHIFICATION: Lithified, on the basis of figured specimens.

Size class: macrofossils

Preservation: cast, mold/impression

Collected by Church

Collection methods: surface (in situ),

• COLLECTOR: Church, Hanna, and Anderson. REPOSITORY: Not stated in text.

Primary reference: F. M. Anderson. 1958. Upper Cretaceous of the Pacific Coast. Geological Society of America Memoir 71:1-378 [A. Miller/A. Hendy/M. Clapham]more details

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 83774: authorized by Austin Hendy, entered by Austin Hendy on 31.08.2008, edited by Matthew Clapham

Creative Commons license: CC BY (attribution)

Taxonomic list

• COVERAGE: Exhaustive for macrofossils. NOMENCLATURE: Authoritative publication, but with somewhat antiquated nomenclature.
Gastropoda
 Cerithioidea - Turritellidae
Turritella aff. peninsularis Anderson and Hanna 1935 turret shell
 Sorbeoconcha - Aporrhaidae
Tessarolax aff. distorta Gabb 1864 snail
 Neogastropoda - Perissityidae
"Cophocara stantoni" = Perissitys stantoni
"Cophocara stantoni" = Perissitys stantoni Stewart 1927 snail
Cephalopoda
 Ammonitida - Tetragonitidae
"Lytoceras (Gaudryceras) epigonum" = Epigoniceras epigonum, "Lytoceras (Gaudryceras) birkhauseri" = Gaudryceras kayei, "Lytoceras (Gaudryceras) coalingense" = Gaudryceras kayei
"Lytoceras (Gaudryceras) epigonum" = Epigoniceras epigonum Kossmat 1895 ammonite
"Lytoceras (Gaudryceras) birkhauseri" = Gaudryceras kayei Forbes 1846 ammonite
"Lytoceras (Gaudryceras) coalingense" = Gaudryceras kayei Forbes 1846 ammonite
 Ammonitida - Desmoceratidae
"Hauericeras aff. gardeni" = Hauericeras (Gardeniceras) gardeni
"Hauericeras aff. gardeni" = Hauericeras (Gardeniceras) gardeni Baily 1855 ammonite
 Ammonitida - Pachydiscidae
"Parapachydiscus catarinae" = Neodesmoceras catarinae, "Parapachydiscus coalingensis" = Pachydiscus (Pachydiscus) egertoni, "Parapachydiscus aff. peninsularis" = Anapachydiscus peninsularis
"Parapachydiscus catarinae" = Neodesmoceras catarinae Anderson and Hanna 1935 ammonite
"Parapachydiscus coalingensis" = Pachydiscus (Pachydiscus) egertoni Forbes 1846 ammonite
"Parapachydiscus aff. peninsularis" = Anapachydiscus peninsularis Anderson and Hanna 1935 ammonite
 Ammonitida - Nostoceratidae
"Exiteloceras aff. vancouverense" = Didymoceras vancouverensis, Nostoceras sp.
"Exiteloceras aff. vancouverense" = Didymoceras vancouverensis Gabb 1864 ammonite
Nostoceras sp. Hyatt 1894 ammonite
 Ammonitida - Baculitidae
Baculites aff. anceps Lamarck 1822 ammonite
Baculites lomaensis Anderson 1958 ammonite
Baculites occidentalis Meek 1861 ammonite
 Nautilida - Nautilidae
Nautilidae indet. de Blainville 1825 nautiloid
Scaphopoda
  -
Dentalium (Entalis) whiteavesi Anderson and Hanna 1935 tusk shell
Bivalvia
 Arcida - Parallelodontidae
Parallelodon sp. Meek and Worthen 1866 clam
 Myalinida - Inoceramidae
Inoceramus sp. Sowerby 1814 clam