Skip to Main Content
GEOREF RECORD

A first account of freshwater potamolepid sponges (Demospongiae, Spongillina, Potamolepidae) from the middle Eocene; biogeographic and paleoclimatic implications

Andrzej Pisera, Peter A. Siver and Alexander P. Wolfe
A first account of freshwater potamolepid sponges (Demospongiae, Spongillina, Potamolepidae) from the middle Eocene; biogeographic and paleoclimatic implications
Journal of Paleontology (May 2013) 87 (3): 373-378

Abstract

We report the oldest fossil occurrence of freshwater potamolepid sponges (Demospongiae, Spongillina, Potamolepidae) to date, originating from middle Eocene lake sediments accumulated in the Giraffe kimberlite maar, northern Canada. Sponges are represented by strongyle spicules that are gemmuloscleres. These are described herein as belonging to a new species, Potamophloios canadensis. Because the most similar extant potamolepid sponges inhabit subtropical to tropical water bodies, these observations provide further evidence of biogeographic reorganizations in response to warm high-latitude Eocene paleoclimates.


ISSN: 0022-3360
EISSN: 1937-2337
Coden: JPALAZ
Serial Title: Journal of Paleontology
Serial Volume: 87
Serial Issue: 3
Title: A first account of freshwater potamolepid sponges (Demospongiae, Spongillina, Potamolepidae) from the middle Eocene; biogeographic and paleoclimatic implications
Affiliation: Polish Academy of Sciences, Institute of Paleobiology, Warsaw, Poland
Pages: 373-378
Published: 201305
Text Language: English
Publisher: Paleontological Society, Lawrence, KS, United States
References: 47
Accession Number: 2013-043435
Categories: Invertebrate paleontology
Document Type: Serial
Bibliographic Level: Analytic
Illustration Description: illus. incl. sect., strat. col., sketch map
N64°47'60" - N64°47'60", W109°45'00" - W109°45'00"
Secondary Affiliation: Connecticut College, USA, United StatesUniversity of Alberta, CAN, Canada
Country of Publication: United States
Secondary Affiliation: GeoRef, Copyright 2017, American Geosciences Institute. Abstract, Copyright, The Paleontological Society. Reference includes data from GeoScienceWorld, Alexandria, VA, United States
Update Code: 201327
Close Modal
This Feature Is Available To Subscribers Only

Sign In or Create an Account

Close Modal
Close Modal