San Carlos (2 mi. from), on road to La Gavia: Early/Lower Albian, Mexico
collected by Bose

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Echinoidea - Spatangoida - Spatangidae
Epiaster sp.
Bivalvia - Pholadomyida - Pholadomyidae
Homomya sp. Agassiz 1843
Cephalopoda - Belemnitida - Belemnitidae
Belemnites sp.
Cephalopoda - Phylloceratida - Phylloceratidae
Phylloceras velledae (Michelin 1834)
recombined as Phylloceras (Hypophylloceras) velledae
Cephalopoda - Ammonitida - Hamitidae
Hamites simplex d'Orbigny 1842
Cephalopoda - Ammonitida - Tetragonitidae
Kossmatella agassizi
Cephalopoda - Ammonitida - Beudanticeratidae
Desmoceras (Beudanticeras) beudanti (Brongniart 1822)
recombined as Beudanticeras beudanti
Cephalopoda - Ammonitida - Desmoceratidae
Latidorsella latidorsata (Michelin 1838)
recombined as Desmoceras (Desmoceras) latidorsatum
Uhligella sp.
Uhligella aff. rebouli Jacob 1908
recombined as Beudanticeras (Uhligella) rebouli
Uhligella aff. walleranti (Jacob 1908)
Puzosia aff. kiliani
Puzosia aff. provinciale
Puzosia cf. mayoriana (d'Orbigny 1841)
recombined as Puzosia (Puzosia) mayoriana
Puzosia aff. nolani Fallot 1910
Cephalopoda - Ammonitida - Engonoceratidae
Engonoceras sp. Neumayr and Uhlig 1881
Cephalopoda - Ammonitida - Lyelliceratidae
Acanthoceras cf. camattei (d'Orbigny 1841)
recombined as Tegoceras camatteanum
Cephalopoda - Ammonitida - Acanthoceratidae
Acanthoceras sp. Neumayr 1875
Cephalopoda - Ammonitida - Mojsisovicsiidae
Oxytropidoceras cf. roissyi
see common names

Geography
Country:Mexico State/province:Coahuila de Zaragoza
Coordinates: 26.3° North, 101.3° West (view map)
Paleocoordinates:24.9° North, 60.6° West
Basis of coordinate:based on nearby landmark
Geographic resolution:outcrop
Time
Period:Cretaceous Epoch:Early/Lower Cretaceous
Stage:Albian 10 m.y. bin:Cretaceous 4
Key time interval:Early/Lower Albian
Age range of interval:113.00000 - 109.90000 m.y. ago
Stratigraphy
Stratigraphic resolution:group of beds
Stratigraphy comments: STRATIGRAPHIC RELATIONS: From an unnamed lithostratigraphic unit, which overlies the Clansayes horizon, for which lithostratigraphic relationships are not discused. AGE: Early Albian; on the basis of ammonite biostratigraphy. STRATIGRAPHIC POSITION: From unknown position in unit.
Lithology and environment
Primary lithology:gray lithified "limestone"
Includes fossils?Y
Lithology description: SPECIFIC LITHOLOGY: Thick bedded gray limestone. LITHIFICATION: Lithified, on the basis of figured specimens.
Environment:carbonate indet.
Taphonomy
Modes of preservation:mold/impression
Size of fossils:macrofossils
Collection methods and comments
Collection excludes:some macrofossils
Collection methods:surface (in situ),field collection
Reason for describing collection:biostratigraphic analysis
Museum repositories:UCMP
Collectors:Bose
Collection method comments: COLLECTOR: Not stated, but presumably E. Böse. REPOSITORY: University of California, Berkeley.
Taxonomic list comments:COVERAGE: Probably not exhaustive, but comprehensive for ammonoids. NOMENCLATURE: Authoritative publication with somewhat antiquated nomenclature, but with species-resolution identifications.
Metadata
Database number:88253
Authorizer:A. Hendy Enterer:A. Hendy
Modifier:A. Hendy Research group:marine invertebrate
Created:2009-04-05 00:00:58 Last modified:2013-11-25 13:37:23
Access level:the public Released:2009-04-05 00:00:58
Creative Commons license:CC BY
Reference information

Primary reference:
18877. E. Böse and O.A. Cavins. 1927. The Cretaceous and Tertiary of southern Texas and northern Mexico. University of Texas Bulletin 2748:1-142 [A. Hendy/A. Hendy/A. Hendy]