Sierra de Santa Rosa section 4, middle member (Jurassic of Mexico)

Where: Sonora, Mexico (30.1° N, 111.7° W: paleocoordinates 16.5° N, 50.6° W)

When: Middle Member (Sierra de Santa Roas Formation), Early/Lower Pliensbachian (189.6 - 183.0 Ma)

Environment/lithology: coastal; lithified sandstone and lithified mudstone

Size class: macrofossils

Preservation: cast, mold/impression

Primary reference: A. Scholz, M. Aberhan, and C.M. León. 2008. Early Jurassic bivalves of the Antimonio terrane (Sonora, NW Mexico): Taxonomy, biogeography, and paleogeographic implications. Geological Society of America Special Paper 442:269-312 [A. Miller/S. Kolbe/P. Wagner]more details

Purpose of describing collection: general faunal/floral analysis

PaleoDB collection 115216: authorized by Arnold Miller, entered by Sarah Kolbe on 31.08.2011

Creative Commons license: CC BY (attribution)

Taxonomic list

 Arcida - Parallelodontidae
Grammatodon sulcatus Aberhan 1994 clam
Parallelodon cf. hirsonensis d'Archiac 1843 clam
 Pectinida - Entoliidae
"Entolium corneolum" = Entolium (Entolium) corneolum
"Entolium corneolum" = Entolium (Entolium) corneolum Young and Bird 1828 scallop
 Pectinida - Pectinoidae
Eopecten velatus Goldfuss 1833 scallop
 Pectinida - Neitheoidae
Weyla alata von Buch 1838 scallop
Weyla unca Philippi 1899 scallop
 Pectinida - Limidae
Antiquilima cf. nodulosa Terquem 1855 file clam
 Ostreida - Bakevelliidae
Gervillella leesi Aberhan and Muster 1997 oyster
 Ostreida - Pinnidae
Pinna cf. folium Young and Bird 1822 oyster
 Mytilida - Mytilidae
Modiolus giganteus Quenstedt 1857 mussel
 Pholadida - Ceratomyidae
Ceratomya concentrica Sowerby 1822 clam
 Pholadida - Pleuromyidae
Pleuromya uniformis Sowerby 1813 clam
 Cardiida - Kalenteridae
Myoconcha neuquena Leanza 1940 clam
 Cardiida - Arcticidae
Isocyprina ancatruzi Leanza 1942 clam
 Cardiida - Cardiidae
Protocardia luggudensis Troedsson 1951 cockle
Protocardia striatula Sowerby 1829 cockle
 Pandorida - Laternulidae
"Cercomya peruviana" = Cercomya (Capillimya) peruviana
"Cercomya peruviana" = Cercomya (Capillimya) peruviana Cox 1956 clam
 Pholadomyida - Pholadomyidae
"Pholadomya fidicula" = Pholadomya (Pholadomya) fidicula Sowerby 1826 clam
"Pholadomya idea" = Pholadomya (Pholadomya) idea d'Orbigny 1850 clam
? Pachymya "sp. A" Sowerby 1826 clam
 Trigoniida - Myophorelloidae
Frenguelliella poultoni Leanza 1993 clam