Taphonomy of acanthodians from the devonian Bunga Beds (late Givetian/early Frasnian) of New South Wales

Burrow C.J. (1996) Taphonomy of acanthodians from the devonian Bunga Beds (late Givetian/early Frasnian) of New South Wales. Historical Biology, 11 1-4: 213-228.

Author Burrow C.J.
Title Taphonomy of acanthodians from the devonian Bunga Beds (late Givetian/early Frasnian) of New South Wales
Journal name Historical Biology   Check publisher's open access policy
ISSN 0891-2963
Publication date 1996-01-01
Sub-type Article (original research)
Open Access Status Not yet assessed
Volume 11
Issue 1-4
Start page 213
End page 228
Total pages 276
Language eng
Subject 1100 Agricultural and Biological Sciences
Abstract Several articulated, but incomplete, acanthodians from the Bunga Beds (late Givetian/early Frasnian) of the southern coast of New South Wales are tentatively identified as ischnacanthids. Heads are missing from all three prepared specimens. They exhibit the following characters: two dorsal fin spines; long, slender scapulocoracoids; slender, relatively deeply inserted, unpaired fin spines; minute scales with a fairly smooth, flat, crown; and an increase in size of normal body scales towards the tip of the tail. The fish are preserved in black, finely laminated shales, which were probably deposited as deep water, lacustrine sediments. The rarity, burial conditions, and headless state of the Bunga Beds acanthodians indicate that they might have died in shallow water, sunk to the bottom, refloated by gas-induced buoyancy, with the heads lost while drifting out to deeper waters, where the bodies finally sank to a scavenger-free, anaerobic substrate.
Keyword Acanthodians
Bunga Beds
Givetian/Frasnian
Ischnacanthids
Taphonomy
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status Unknown

Document type: Journal Article
Sub-type: Article (original research)
Collection: Scopus Import - Archived
 
Versions
Version Filter Type
Citation counts: Scopus Citation Count Cited 10 times in Scopus Article | Citations
Google Scholar Search Google Scholar
Created: Sat, 09 Jul 2016, 16:57:43 EST by System User