scholarly journals The Kačák event (late Eifelian, Middle Devonian) on the Belgian shelf and its effects on rugose coral palaeobiodiversity

2020 ◽  
pp. 279-311
Author(s):  
V. Jamart ◽  
J. Denayer
Keyword(s):  
Middle Devonian ◽  
Rugose Coral

The rugose coral Tabulophyllum traversensis from the Oñate Formation (Middle Devonian) of the Mud Springs Mountains, New Mexico

1987 ◽  
Vol 61 (1) ◽  
pp. 14-20 ◽  
Author(s):  
James E. Sorauf
Keyword(s):  
New York ◽  
New Mexico ◽  
Special Interest ◽  
Middle Devonian ◽  
Coral Species ◽  
Larval Growth ◽  
Solid Substrate ◽  
Rugose Coral ◽  
Flat Base

The Oñate Formation of Middle Devonian (Givetian) age is exposed in the Mud Springs Mountains of New Mexico, where it is represented by an unusually shaly and extremely fossiliferous facies. Tabulophyllum traversensis (Winchell) found here is the only rugose coral species known thus far from Middle Devonian rocks of New Mexico and is of special interest as evidence of migration between the area of the Oñate occurrence and those in the Cedar Valley Limestone in Iowa and the Traverse Group of Michigan. The occurrence is also of interest because of the association of the Oñate coral with the receptaculitid Sphaerospongia sp. cf. S. tessellata (also known from Canada, Australia, and New York). The corals apparently utilized receptaculitids as a solid substrate for post-larval growth and developed an extremely broad flat base, fixed to the upper surface of Sphaerospongia.

scholarly journals The First Occurrence of the Devonian Rugose Coral Calceola Sandalina (Linné, 1771) in the Barrandian Area, Czech Republic

2015 ◽  
Vol 48 (1-2) ◽  
pp. 11-19
Author(s):  
Michal Mergl
Keyword(s):  
Czech Republic ◽  
Middle Devonian ◽  
High Energy ◽  
Rugose Coral ◽  
Different Types ◽  
First Occurrence ◽  
Barrandian Area

Abstract The calceolide coral Calceola sandalina (Linné, 1771) has been observed in the Acanthopyge Limestone (Choteč Formation, Eifelian) in the Koněprusy area, Czech Republic. Its presence in the Barrandian area indicates absence of significant palaeogeographic barriers restricting the distribution of this tetracoral in the Middle Devonian. Association of Calceola with a taxonomically diverse ribbed brachiopod faunas attests for two different types of environment on the Koněprusy submarine elevation during deposition of the Acanthopyge Limestone. Calceola-bearing beds represent a high-energy reefal environment different from somewhat deeper and calmer environment characterized by smooth-shelled, small to medium sized spire-bearing brachiopods.

Crises in the Devonian history of the rugose corals

Paleobiology ◽  
1994 ◽  
Vol 20 (2) ◽  
pp. 178-190 ◽  
Author(s):  
William A. Oliver ◽  
A. E. H. Pedder
Keyword(s):  
Sea Level ◽  
Middle Devonian ◽  
Gradual Transition ◽  
Sea Level Fluctuations ◽  
Environmental Deterioration ◽  
Rugose Corals ◽  
Rugose Coral ◽  
New Information ◽  
History Of ◽  
Stratigraphic Ranges

Detailed analysis of the stratigraphic ranges of Devonian rugose coral genera within the Old World and Eastern Americas Realms gives new information on faunal extinctions and other bioevents in both realms. Various origination and extinction metrics are calculated from tabulations of occurrences in each stage. The most significant faunal changes were near or at the ends of the Lochkovian and Frasnian stages. The former marks the gradual transition from dominance by Silurian families and genera to the characteristic Devonian coral assemblages; the latter marks the virtual extinction of the Devonian families and genera. Other coral events are related to the two major changes.The data provide new bases for comparing the histories of the two realms. Most of the events are recorded in both, giving support to previous suggestions that the causes were worldwide. The coral record shows an increase (probably episodic) in environmental deterioration persisting through the Middle Devonian and culminating in extinction at the end of the Frasnian. Eustatic sea level fluctuations may have caused the precursor events and a bolide impact may have caused the end-Frasnian extinction.

A unique occurrence of Endophyllum (rugose coral; Devonian) in eastern North America: An ecological and biogeographical puzzle

1996 ◽  
Vol 70 (1) ◽  
pp. 46-56 ◽  
Author(s):  
William A. Oliver ◽  
James E. Sorauf ◽  
Carlton E. Brett
Keyword(s):  
New York ◽  
New Species ◽  
North America ◽  
Middle Devonian ◽  
Eastern North America ◽  
Old World ◽  
Rugose Coral ◽  
Large Colony ◽  
First Time

Endophyllum is described for the first time from North America. The occurrence of a single, large colony in Middle Devonian strata in New York is both biogeographically and environmentally anomalous: it belongs to an Old World Realm genus but was found in the Eastern Americas Realm, and it occurred in a gray, ambocoeliid-bearing mudstone, a facies in which morphologically complex corals are otherwise unknown. Available evidence suggests that the coral lived not far from where it was found, possibly on a hardground or bank a few km north of the outcrop. Endophyllum ciurcai new species is described.

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