<i>Retusotriletes phillipsii</i>N. Sp., a potential upper Devonian guide palynomorph

Clendening, John A.; Ames, Leonard E.; Wood, Gordon D.

doi:10.1080/01916122.1980.9989199

Cited by 17 publications

(4 citation statements)

References 7 publications

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“…phillipsii Clendening, Eames &Wood, 1980. This is a possible scenario for the origin of the Rhynie Cherts Unit (after Trewin & Wilson 2004). the Upper Devonian (Famennian) (Clendening et al 1980;Richardson & McGregor 1986). It can be distinguished because it is larger (53(68)79 m) and has a thickened area centred on the proximal pole, rather than an area of thinner exospore surrounded by a thickened strip.…”

Section: Retusoid Trilete Spores (Laevigate)mentioning

confidence: 96%

“…R. fayersii, are R. rugulatus Riegel, 1973 andR. phillipsii Clendening, Eames &Wood, 1980. R. rugulatus is known from the Eifelian to Frasnian.…”

Section: Retusoid Trilete Spores (Laevigate)mentioning

confidence: 99%

“…the Upper Devonian (Famennian) (Clendening et al 1980;Richardson & McGregor 1986). It can be distinguished because it is larger (46(57)69 m), the thickened band centred on the proximal pole is more triangular, and the proximal radial ridges outside the proximal thickened band are more pronounced.…”

Section: Retusoid Trilete Spores (Laevigate)mentioning

confidence: 99%

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Spore assemblages from the Lower Devonian ‘Lower Old Red Sandstone’ deposits of the Rhynie outlier, Scotland

Wellman

2006

Transactions of the Royal Society of Edinburgh: Earth Sciences

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Since the late 1980s an extensive programme of trenching/borehole drilling has been undertaken in order to study the Lower Devonian 'Lower Old Red Sandstone' deposits of the Rhynie outlier in the Grampian Highlands of Scotland. The boreholes have provided new information on the stratigraphical succession and geological structure of the Rhynie outlier, both of which were hitherto poorly understood due to the paucity of good surface exposure and the complex geological relationships of the deposits. One hundred and eighteen palynological samples were collected, representing much of the stratigraphical sequence of the inlier, of which 106 were productive. Productive samples yield assemblages of well preserved palynomorphs, dominated by spores and phytodebris, but also containing arthropod cuticle and rare freshwater algal remains. The spore assemblages are systematically described and two new genera and six new species proposed. They are similar throughout the sequence and the spores belong to the polygonalis-emsiensis Spore Assemblage Biozone of Richardson & McGregor (1986) and the PoW Oppel Zone (possibly Su Interval Zone) of Streel et al. (1987), indicating an early (but not earliest) Pragian-?earliest Emsian age range, that may possibly be restricted to latest Pragian-?earliest Emsian. The palynomorph assemblages contain only terrestrial forms, supporting sedimentological interpretation of the deposits as 'Lower Old Red Sandstone' fluviatile and lacustrine deposits, with occasional extrusive volcanics and volcaniclastic sediments intercalated. The palynomorphs are of variable thermal maturity (within and between samples), probably reflecting differential heating associated with the complex volcanic/hydrothermal system. The new palynological data provide, for the first time, a reliable biostratigraphical age for the deposits, and suggest that they accumulated relatively rapidly. Spore biostratigraphy and thermal maturity studies facilitate correlation of the tectonically complex deposits, and shed light on other aspects of the geological history of the outlier. The palynomorph assemblages also aid interpretation of the biota of the Rhynie basin, including the exceptionally preserved biotas of the Rhynie and Windyfield cherts.

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Section: Retusoid Trilete Spores (Laevigate)mentioning

confidence: 96%

“…R. fayersii, are R. rugulatus Riegel, 1973 andR. phillipsii Clendening, Eames &Wood, 1980. R. rugulatus is known from the Eifelian to Frasnian.…”

Section: Retusoid Trilete Spores (Laevigate)mentioning

confidence: 99%

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Spore assemblages from the Lower Devonian ‘Lower Old Red Sandstone’ deposits of the Rhynie outlier, Scotland

Wellman

2006

Transactions of the Royal Society of Edinburgh: Earth Sciences

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“…Only the younger of these, the Chadakoin Formation, is present in the collection locality (36). The Chadakoin Formation lies within the Palmatolepis marginifera Conodont Zone (Kirchgasser), Goniatite Zone II-G (38), and Fa2c subdivision of Spore Zone GF (39), indicating a mid-Famennian age, providing a constraint of 367.9-367.2 Ma for MCZ VPF 5114 (40). Other fishes reported from the Chadakoin Formation include arthrodire placoderms, chondrichthyans, lungfishes, and porolepiforms (29,41).…”

Section: [Redacted From Preprint]mentioning

confidence: 99%

High lineage survivorship across the end-Devonian Mass Extinction suggested by a remarkable new Late Devonian actinopterygian

Giles

Feilich

Pierce

et al. 2021

Preprint

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Actinopterygian (ray-finned) fishes represent the principal vertebrate group in aquatic settings. This dominance is often attributed to their apparent success in the aftermath of the end-Devonian extinction. Increases in taxonomic and morphological diversity in the early Carboniferous, coupled with phylogenetic hypotheses implying the survival of few Devonian lineages, contribute to a model of explosive post-extinction radiation. However, most actinopterygian fossils from within a ca. 20 Myr window surrounding the end-Devonian extinction remain poorly known, contributing to uncertainty about these patterns. Here we present detailed anatomical data for an exceptionally preserved but diminutive ray-finned fish from within this gap, ~7 Myr prior to the Devonian-Carboniferous boundary. Representing a new genus and species, it bears a series of derived anatomical features otherwise known only from Carboniferous and younger taxa. It nests phylogenetically within a clade of post-Devonian species and, in an expanded phylogenetic analysis incorporating other previously neglected taxa, draws at least ten lineages of Carboniferous actinopterygians into the Late Devonian. This suggests phenotypically cryptic divergence among ray-finned fishes in the latest Devonian, followed by more conspicuous diversification in feeding and locomotor structures in the Carboniferous. This revised model finds parallels in patterns emerging for other clades, and provides a refined perspective on key events early in the history of a group that today contains half of all living vertebrate species.

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Miospore correlation between North American, German and Uralian (Udmurtia) deep facies through Appalachian, Irish and Belgian platform and continental facies near the Devonian/Carboniferous boundary

Streel

Global Bio-Events

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Retusotriletes phillipsiiN. Sp., a potential upper Devonian guide palynomorph

Cited by 17 publications

References 7 publications

Spore assemblages from the Lower Devonian ‘Lower Old Red Sandstone’ deposits of the Rhynie outlier, Scotland

Spore assemblages from the Lower Devonian ‘Lower Old Red Sandstone’ deposits of the Rhynie outlier, Scotland

High lineage survivorship across the end-Devonian Mass Extinction suggested by a remarkable new Late Devonian actinopterygian

Miospore correlation between North American, German and Uralian (Udmurtia) deep facies through Appalachian, Irish and Belgian platform and continental facies near the Devonian/Carboniferous boundary

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