Skip to Main Content
Skip Nav Destination
GEOREF RECORD

Euflabella n. igen.; complex horizontal spreite burrows in Upper Cretaceous-Paleogene shallow-marine sandstones of Antarctica and Tierra del Fuego

Eduardo B. Olivero and Maria I. Lopez Cabrera
Euflabella n. igen.; complex horizontal spreite burrows in Upper Cretaceous-Paleogene shallow-marine sandstones of Antarctica and Tierra del Fuego
Journal of Paleontology (May 2013) 87 (3): 413-426

Abstract

Fine-grained sandstones and siltstones of Late Cretaceous to Eocene age in Antarctica and Tierra del Fuego yield an association of well-known shallow-marine trace fossils. Among them stick out complex spreite burrows, which are formally described as Euflabella n. igen. and subdivided into five ichnospecies with different burrowing programs and occurrences. As shown by concentrations of diatoms, radiolarians, foraminifers, and calcispheres in particular backfill lamellae, the unknown trace makers lived on fresh detritus from the surface as well as the burrowed sediment. In some ichnospecies, vertical sections show that the spreite is three-dimensionally meandering in upward direction and that upper laminae tend to rework the upper backfill of the folds underneath. This could mean a second harvest, after cultivated bacteria had time to ferment refractory sediment components, which the metazoan trace maker had been unable to digest before.


ISSN: 0022-3360
EISSN: 1937-2337
Coden: JPALAZ
Serial Title: Journal of Paleontology
Serial Volume: 87
Serial Issue: 3
Title: Euflabella n. igen.; complex horizontal spreite burrows in Upper Cretaceous-Paleogene shallow-marine sandstones of Antarctica and Tierra del Fuego
Affiliation: Consejo Nacional de Investigaciones Cientificas y Tecnicas, Centro Austral de Investigaciones Cientificas, Ushuaia, Argentina
Pages: 413-426
Published: 201305
Text Language: English
Publisher: Paleontological Society, Lawrence, KS, United States
References: 31
Accession Number: 2013-043440
Categories: Invertebrate paleontology
Document Type: Serial
Bibliographic Level: Analytic
Illustration Description: illus. incl. strat. cols., 2 plates, geol. sketch maps
S64°30'00" - S63°40'00", W59°00'00" - W57°00'00"
S54°27'00" - S54°27'00", W66°30'00" - W66°30'00"
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

or Create an Account

Close Modal
Close Modal