An Eifelian U-Pb zircon date for the Enagh Tuff Bed from the Old Red Sandstone of the Munster Basin in NW Iveragh, SW Ireland

Williams, E. A.; Сергеев, С. А.; Stössel, Iwan; Ford, Mary

doi:10.1144/gsjgs.154.2.0189

Cited by 24 publications

(13 citation statements)

References 11 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…4). Disparity decreased more markedly until approximately the time of the earliest described tetrapod trackways [e.g., the Zachełmie tracks from the Middle Devonian ( 43 ), similar in timing to other records predating substantial body fossils ( 44 , 45 )] and then stabilized. This pattern, although based on a modest sample size as mandated by the existing fossil record, is congruent with an evolutionary stabilization of the disparity of appendicular anatomical organization near the origin of tetrapods.…”

Section: Discussionmentioning

confidence: 66%

Evolutionary parallelisms of pectoral and pelvic network-anatomy from fins to limbs

et al. 2019

View full text Add to dashboard Cite

Lobe-fins transformed into limbs during the Devonian period, facilitating the water-to-land transition in tetrapods. We traced the evolution of well-articulated skeletons across the fins-to-limbs transition, using a network-based approach to quantify and compare topological features of fins and limbs. We show that the topological arrangement of bones in pectoral and pelvic appendages evolved in parallel during the fins-to-limbs transition, occupying overlapping regions of the morphospace, following a directional trend, and decreasing their disparity over time. We identify the presence of digits as the morphological novelty triggering topological changes that discriminated limbs from fins. The origin of digits caused an evolutionary shift toward appendages that were less densely and heterogeneously connected, but more assortative and modular. Disparity likewise decreased for both appendages, more markedly until a time concomitant with the earliest-known tetrapod tracks. Last, we rejected the presence of a pectoral-pelvic similarity bottleneck at the origin of tetrapods.

show abstract

Section: Discussionmentioning

confidence: 66%

Evolutionary parallelisms of pectoral and pelvic network-anatomy from fins to limbs

et al. 2019

View full text Add to dashboard Cite

show abstract

“…The Irish trackways are not younger than 385 myr based on the U‐Pb zircon dating of the Enagh Tuff Bed which is located 352 m above the bed correlatable with the trackways (Williams et al . ). According to the GTS 2012, their age may now be shifted from the Frasnian (Stössel ) to a middle part of the Givetian (Fig.…”

Section: Age Of the Zachełmie Tracksmentioning

confidence: 97%

The age of the oldest tetrapod tracks from Zachełmie, Poland

Narkiewicz

2015

LET

View full text Add to dashboard Cite

“…During the early phase of development of the SMB, Old Red Sandstone sedimentation continued and, like the fluvial sediments of the earlier Munster Basin (Givetian or Frasnian to Strunian age), was derived from the north and west (Graham et al. , 1983, 1992; MacCarthy, 1990; Sadler & Kelly, 1993; James & Graham, 1995; Kelly & Sadler, 1995; Williams et al. , 1997, 2000).…”

Section: Geological Settingmentioning

confidence: 99%

The evolution of a thick shallow marine succession, the South Munster Basin, Ireland

Quin

2008

Sedimentology

View full text Add to dashboard Cite

The relatively fine-grained Late Devonian to Early Carboniferous 'Cork Beds' succession of the South Munster Basin includes continuous sections of paralic facies that are over 1000 m thick and individual sandstone units over 300 m thick. However, the succession does not reflect prolonged phases when facies belts were stationary, but rather multiple stacking of small-scale, highfrequency sequences, each associated with pronounced migration of shorelines. What seems to have been unusual about the South Munster Basin succession was that the geographical positioning of these high-frequency sequences was fixed. This resulted from an unusual combination of tectonics, shelf hydrodynamics, sedimentation rates and the textural maturity of the sediment within the basin. Of these, tectonics was probably most critical, particularly the juxtaposition of rapid subsidence in basinal areas and a basin margin zone (to the north) that was sufficiently up-standing to pin the maximum extent of transgression during repeated highstands of sea-level, yet not so upstanding as to have diverted the major regional drainage system. The embayed palaeogeography of the area may also have been influential.

show abstract

An Eifelian U-Pb zircon date for the Enagh Tuff Bed from the Old Red Sandstone of the Munster Basin in NW Iveragh, SW Ireland

Cited by 24 publications

References 11 publications

Evolutionary parallelisms of pectoral and pelvic network-anatomy from fins to limbs

Evolutionary parallelisms of pectoral and pelvic network-anatomy from fins to limbs

The age of the oldest tetrapod tracks from Zachełmie, Poland

The evolution of a thick shallow marine succession, the South Munster Basin, Ireland

Contact Info

Product

Resources

About