Camacho and Trinidad Mines (Cretaceous of Mexico)

Where: Zacatecas, Mexico (22.5° N, 101.5° W: paleocoordinates 22.2° N, 69.0° W)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Early/Lower Cenomanian (99.6 - 93.5 Ma)

• STRATIGRAPHIC RELATIONS: From unnamed lithostratigraphic unit. AGE: Vraconian (=Late Albian), on the basis of ammonite biostratigraphy. STRATIGRAPHIC POSITION: From unknown position within section.

• bed-level stratigraphic resolution

Environment/lithology: marine; lithified lithology not reported

• ENVIRONMENT: Unknown.
• SPECIFIC LITHOLOGY: Unknown. LITHIFICATION: Lithified on the basis of figured specimens.

Size class: macrofossils

Preservation: cast, mold/impression

Collected by Bose

Collection methods: surface (in situ),

• COLLECTOR: Böse. REPOSITORY: Museo de Paleontologia del Instituto de Geologia.

Primary reference: E. Böse. 1923. Algunas faunas cretácias de Zacatecas, Durango y Guerrero. Boletín del Instituto Géologica de México 42:1-219 [A. Hendy/A. Hendy/L. Bulot]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 87607: authorized by Austin Hendy, entered by Austin Hendy on 20.03.2009

Creative Commons license: CC BY (attribution)

Taxonomic list

• COVERAGE: Exhaustive for ammonoidea. NOMENCLATURE: Authoritative publication, with somewha antiquated nomenclature, but with species-resolution identifications.
Cephalopoda
 Phylloceratida - Phylloceratidae
"Phylloceras velledae" = Phylloceras (Hypophylloceras) velledae
"Phylloceras velledae" = Phylloceras (Hypophylloceras) velledae Michelin 1834 ammonite
 Ammonitida - Brancoceratidae
"Schloenbachia cf. inflata" = Mortoniceras (Mortoniceras) inflatum, "Schloenbachia aguilerae" = Goodhallites aguilerae
"Schloenbachia cf. inflata" = Mortoniceras (Mortoniceras) inflatum Sowerby 1818 ammonite
"Schloenbachia aguilerae" = Goodhallites aguilerae Böse 1923 ammonite
 Ammonitida - Acanthoceratidae
"Acanthoceras camachoense n. sp." = Mantelliceras camachoense
"Acanthoceras camachoense n. sp." = Mantelliceras camachoense Böse 1923 ammonite
 Ammonitida - Lyelliceratidae
"Acanthoceras cf. lyelli" = Lyelliceras lyelli
"Acanthoceras cf. lyelli" = Lyelliceras lyelli d'Orbigny 1841 ammonite
 Ammonitida - Desmoceratidae
 Ammonitida - Crioceratitidae
"Crioceras sp." = Crioceratites, "Toxoceras sp." = Crioceratites
"Crioceras sp." = Crioceratites Leveillé 1837 ammonite
"Toxoceras sp." = Crioceratites Leveillé 1837 ammonite
 Ammonitida - Schloenbachiidae
 Ammonitida - Tetragonitidae
 Ammonitida - Turrilitidae
"Turrilites camachoensis" = Mariella (Mariella) camachoensis Bose 1923 ammonite
Turrilites carrancoi ammonite
= Mariella (Mariella) carrancoi
Turrilites scheuchzeri ammonite
SUBSPECIES: Turrilites scheuchzeri mexicana
Turrilites sp. Lamarck 1801 ammonite
"Turrilites aff. acutus" = Turrilites (Turrilites) acutus Passy 1832 ammonite
"Turrilites cf. wiestii" = Turrilites (Turrilites) acutus Passy 1832 ammonite
Turrilites multipunctatus Böse 1923 ammonite
= Mariella (Mariella) carrancoi
Turrilites scheuchzerianus Bosc 1801 ammonite
= Mariella (Mariella) camachoensis
 Ammonitida - Hamitidae
Hamites aff. attenuatus Sowerby 1814 ammonite
Hamites carrancoi Böse 1923 ammonite
Hamites cf. venetzianus Pictet 1847 ammonite
Hamites aff. intermedius Sowerby 1814 ammonite
"Hamites aff. charpentieri" = Hamites (Hamites) charpentieri Pictet and Roux 1847 ammonite
 Ammonitida - Baculitidae
"Baculites aff. baculoides" = Sciponoceras baculoides, "Baculites cf. gaudini" = Lechites (Lechites) gaudini
"Baculites aff. baculoides" = Sciponoceras baculoides Mantell 1822 ammonite
"Baculites cf. gaudini" = Lechites (Lechites) gaudini Pictet and Campiche 1861 ammonite
 Ammonitida - Anisoceratidae
Anisoceras cf. armatum Sowerby 1817 ammonite
 Ammonitida - Scaphitidae
"Scaphites cf. hugardianus" = Scaphites (Scaphites) hugardianus d'Orbigny 1842 ammonite
 Ammonitida - Ancyloceratidae
Ancyloceras sp. d'Orbigny 1842 ammonite
 Ammonitida - Ptychoceratidae
 Ammonoidea - Hamulinidae
Hamulina sp. ammonite
 Ammonoidea - Macroscaphitidae
Macroscaphites sp. Meek 1876 ammonite