Analysis of marrow cavity fillings as a tool to recognise diverse taphonomic histories of fossil reptile bones: Implications for the genesis of the Lower Muschelkalk marine bone-bearing bed (Middle Triassic, Żyglin, S Poland)

2015 ◽  
Vol 436 ◽  
pp. 64-76 ◽  
Author(s):  
Monika Kowal-Linka
Keyword(s):  
Middle Triassic ◽  
Marrow Cavity ◽  
S Poland ◽  
Lower Muschelkalk

scholarly journals New geological data (Middle Triassic, Rhaetian-Liassic and Oligocene) of the Winterswijk quarry, the eastern Netherlands

2005 ◽  
Vol 84 (4) ◽  
pp. 409-413 ◽  
Author(s):  
G.F.W. Herngreen ◽  
J.H.A. van Konijnenburg - van Cittert ◽  
H.W. Oosterink
Keyword(s):  
Middle Triassic ◽  
Geological Data ◽  
Small Interval ◽  
Marine Clay ◽  
Black Clay ◽  
Lower Oligocene ◽  
Clay Deposits ◽  
Shale Formation ◽  
First Time ◽  
Lower Muschelkalk

AbstractThe present publication deals with recent palynological results of a relatively small interval of Muschelkalk and exposures of the overlying clay deposits in the Winterswijk quarries. For the first time the Lower Muschelkalk Member in the Netherlands could be independently dated as Bithynian (Anisian, Middle Triassic). Contrary to widely accepted opinions the overlying almost black clay deposit is not Liassic but Rhaetian in age and it is assigned to the Sleen Shale Formation. This marginal marine clay which pinches out to the south, is in turn overlain by a light gray, full-marine Lower-Oligocene clay of the Rupel Formation. An anomalous occurrence of Liassic clay is now attributed to subrosion of Röt salt followed by collapse of the overlying Muschelkalk, Rhaetian and Lias strata.

Probable remains of jellyfish (Cnidaria, Scyphozoa) from the lower Middle Triassic (Anisian) of Winterswijk, eastern Netherlands

2013 ◽  
Vol 92 (1) ◽  
pp. 61-67 ◽  
Author(s):  
H.W. Oosterink ◽  
H. Winkelhorst
Keyword(s):  
Middle Triassic ◽  
Lower Muschelkalk

AbstractDuring recent years, regular round structures have been collected from the top of Bed 12 of the Vossenveld Formation (Lower Muschelkalk, lower Middle Triassic, Anisian) in the Winterswijk area, eastern Netherlands. These are here illustrated and described as probable remains of jellyfish.

IchnogenusPholeusFiege, 1944, revisited

2002 ◽  
Vol 76 (5) ◽  
pp. 882-891 ◽  
Author(s):  
Dirk Knaust
Keyword(s):  
Middle Triassic ◽  
Decapod Crustaceans ◽  
Lower Saxony ◽  
Shallow Marine ◽  
Wall Lining ◽  
Sediment Input ◽  
New Material ◽  
Shallow Subtidal ◽  
Marly Limestone ◽  
Lower Muschelkalk

The ichnogenusPholeusFiege, 1944, is a common constituent of the Lower Muschelkalk (Middle Triassic) carbonates of the Germanic Basin, where it occurs in the upper part of shallowing upward cycles. It is restricted to a marly limestone lithofacies and is commonly associated with omission and erosion surfaces. The dwelling structures (domichnia) were created in a shallow-marine to lagoonal paleoenvironment in an intertidal to shallow subtidal setting. New material from Thuringia and Lower Saxony makes a reevaluation ofPholeuspossible and confirms the validity of this ichnogenus. Certain features, such as general form, wall, lining, and branching differentiate it from similar trace fossils. In addition to the already describedP. abomasoformis,three new ichnospecies are named for distinctive forms:P. bifurcatus, P. platiformis,andP. elongatus.Based on geometry, size, and wall lining, the burrow producers were most probably decapod crustaceans. Many similarities to modern burrows ofCallianassasp.,Neocallichirus grandimina,andNephrops norvegicussuggest thalassinian shrimps and lobsters as likely tracemakers ofPholeusburrows. Compound burrow systems and retrusive burrow parts with spreiten-like structures are common and point to an upward shifting of the burrows related to certain sediment input in relation to tidal currents.

An unusual, muddy, epeiric carbonate reservoir: The Lower Muschelkalk (Middle Triassic) of the Netherlands

AAPG Bulletin ◽  
2006 ◽  
Vol 90 (1) ◽  
pp. 61-89 ◽  
Author(s):  
Ravi Borkhataria ◽  
Thomas Aigner ◽  
Koos J.C.P. Pipping
Keyword(s):  
The Netherlands ◽  
Middle Triassic ◽  
Carbonate Reservoir ◽  
Lower Muschelkalk
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