Fossil mayfly larvae (cf. Heptageniidae) are reported for the first time in the Cretaceous of Canada. The new fossils come from the latest Campanian part of the Wapiti Formation, which crops out in west-central Alberta, near the British Columbia border. These sediments represent mixed lentic and lotic fluvial environments consistent with modern heptageniid ecology. This discovery helps fill a significant temporal gap in heptageniid evolution between the Eocene and their earliest appearance in the Turonian.
P. Bell, F. Fanti, J. Acorn, R. Sissons (2013). FOSSIL MAYFLY LARVAE (EPHEMEROPTERA, CF. HEPTAGENIIDAE) FROM THE LATE CRETACEOUS WAPITI FORMATION, ALBERTA, CANADA. JOURNAL OF PALEONTOLOGY, 87(1), 147-150 [10.1666/12-058R.1].
FOSSIL MAYFLY LARVAE (EPHEMEROPTERA, CF. HEPTAGENIIDAE) FROM THE LATE CRETACEOUS WAPITI FORMATION, ALBERTA, CANADA
FANTI, FEDERICO;
2013
Abstract
Fossil mayfly larvae (cf. Heptageniidae) are reported for the first time in the Cretaceous of Canada. The new fossils come from the latest Campanian part of the Wapiti Formation, which crops out in west-central Alberta, near the British Columbia border. These sediments represent mixed lentic and lotic fluvial environments consistent with modern heptageniid ecology. This discovery helps fill a significant temporal gap in heptageniid evolution between the Eocene and their earliest appearance in the Turonian.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
