Am. J. Bot. Join BSA Today!
HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS
QUICK SEARCH:   [advanced]


     

This Article
Right arrow Full Text
Right arrow Full Text (PDF)
Right arrow Submit a response
Right arrow Alert me when this article is cited
Right arrow Alert me when eLetters are posted
Right arrow Alert me if a correction is posted
Services
Right arrow Email this article to a friend
Right arrow Similar articles in this journal
Right arrow Similar articles in ISI Web of Science
Right arrow Alert me to new issues of the journal
Right arrow Download to citation manager
Right arrow reprints & permissions
Google Scholar
Right arrow Articles by Cevallos-Ferriz, S. R. S.
Right arrow Articles by Pérez-Hernández, B. R.
PubMed
Right arrow Articles by Cevallos-Ferriz, S. R. S.
Right arrow Articles by Pérez-Hernández, B. R.
Agricola
Right arrow Articles by Cevallos-Ferriz, S. R. S.
Right arrow Articles by Pérez-Hernández, B. R.
(American Journal of Botany. 2008;95:77-83.)
© 2008 Botanical Society of America, Inc.

Paleobotany

Phytolaccaceae infructescence from Cerro del Pueblo Formation, Upper Cretaceous (late Campanian), Coahuila, Mexico1

Sergio R. S. Cevallos-Ferriz2,5, Emilio Estrada-Ruiz3 and Balam Rodrigo Pérez-Hernández4

2 Departamento de Paleontología, Instituto de Geología, Universidad Nacional Autónoma de México, Ciudad Universitaria, Circuito de la Investigación Científica, Del. Coyoacán 04510 México D.F 3 Posgrado en Ciencias de la Tierra, Instituto de Geología, Universidad Nacional Autónoma de México, Ciudad Universitaria, Circuito de la Investigación Científica, Del. Coyoacán 04510 México D.F. 4 Facultad de Ciencias, Universidad Nacional Autónoma de México, Ciudad Universitaria, Circuito de la Investigación Científica, Del. Coyoacán 04510 México D.F.

ABSTRACT

The Upper Cretaceous (late Campanian) Cerro del Pueblo Formation, Coahuila, Mexico, contains a diverse group of angiosperms represented mainly by their reproductive structures. Among these, a new permineralized infructescence is recognized based on its morphological and anatomical characters. It is a multiple infructescence composed of berry fruits with six locules, each containing a single seed with a curved embryo developed from a campylotropous ovule with pendulous placentation; integumentary anatomy is similar to that of Phytolacca spp. (Phytolaccaceae). Though this new plant from Coahuila shares reproductive characters with Phytolacca, the constant number (six) of carpels per fruit and pendulous placentation strongly support the recognition of a new taxon, Coahuilacarpon phytolaccoides Cevallos-Ferriz, Estrada-Ruiz, et Pérez-Hernández (Phytolaccaceae, Caryophyllales). This new record adds to the known plant diversity of low latitude North America (northern Mexico) and demonstrates the long geologic history of the group.

Key Words: Cerro del Pueblo Formation • Coahuila • Coahuilacarpon phytolaccoides • late Campanian • Phytolaccaceae






HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS
Copyright © 2008 by the Botanical Society of America, Inc.