caa a22 4500 388017597 CHVBK 20180307124915.0 cr unu---uuuuu 161130e199811 xx s 000 0 eng 10.1017/S0022336000027360 doi S0022336000027360 pii (NATIONALLICENCE)cambridge-10.1017/S0022336000027360 Pennsylvanian bivalves from the Ixtaltepec Formation, Mexico [Elektronische Daten] [Sara A. Quiroz-Barroso, Maria del Carmen Perrilliat] Twenty species of bivalves are described from the Ixtaltepec Formation, in Nochixtlán, México. Representatives of the genera Parallelodon, Myalinella, Septimyalina, Leptodesma, Pterinopectinella, Aviculopecten, Limipecten, Streblopteria, Euchondria, Schizodus, Permophorus, Astartella, Edmondia, and Ectogrammysia are present. These species, and those of nuculoid bivalves previously described from the same formation, include infaunal and epifaunal forms that lived in shallow marine environments from Morrowan to Desmoinesian ages. Pennsylvanian bivalves from Nochixtlán are related to the Midcontinent and Appalachian faunas, which indicate that there was an oceanic connection between these areas in a latitudinal belt near the equator that partially covered southeastern Mexico. Copyright © The Paleontological Society Quiroz-Barroso Sara A. Facultad de Ciencias, Universidad Nacional Autónoma de México, Ciudad Universitaria, 04510—México, D. F., México aut del Carmen Perrilliat Maria Instituto de Geología, Universidad Nacional Autónoma de México, Ciudad Universitaria, 04510—México, D. F., México aut Journal of Paleontology Cambridge University Press 72/6(1998-11), 1011-1024 0022-3360 72:6<1011 1998 72 JPA https://doi.org/10.1017/S0022336000027360 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1017/S0022336000027360 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Quiroz-Barroso Sara A. Facultad de Ciencias, Universidad Nacional Autónoma de México, Ciudad Universitaria, 04510—México, D. F., México aut NATIONALLICENCE 700 1- del Carmen Perrilliat Maria Instituto de Geología, Universidad Nacional Autónoma de México, Ciudad Universitaria, 04510—México, D. F., México aut NATIONALLICENCE 773 0- Journal of Paleontology Cambridge University Press 72/6(1998-11), 1011-1024 0022-3360 72:6<1011 1998 72 JPA CC0 http://creativecommons.org/publicdomain/zero/1.0 nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-cambridge