North Esk River, Pentland Hills, SW Edinburgh: Telychian, United Kingdom

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
unclassified
Echinodermata indet. Klein 1754
pelmatozoan
Hyolithida - Hyolithidae
Hyolithes sp. d'Eichwald 1840
Lingulata - Lingulida - Lingulidae
Lingula sp. Bruguiére 1797
Strophomenata - Orthotetida - Chilidiopsidae
Coolinia applanata (Salter 1846)
Coolinia pecten (Linnaeus 1758)
Strophomenata - Strophomenida
Strophochonetes (Strophochonetes) sp. Muir-Wood 1962
Strophomenata - Strophomenida - Sowerbyellidae
Eoplectodonta penkillensis (Reed 1917)
Strophomenata - Strophomenida - Furcitellidae
Pentlandina cf. parva
Rhynchonellata - Atrypida - Atrypidae
Atrypa (Atrypa) sp. Dalman 1828
Rhynchonellata - Atrypida - Anazygidae
Pentlandella pentlandica
Rhynchonellata - Protorthida - Skenidiidae
Skenidioides lewisii (Davidson 1848)
Rhynchonellata - Orthida - Dalmanellidae
Visbyella visbyensis (Lindstrom 1861)
Stenolaemata - Cryptostomata - Arthrostylidae
? Helopora sp. Hall 1851
Stenolaemata - Trepostomata - Aisenvergiidae
? Eridotrypa sp. Ulrich 1893
Polychaeta - Phyllodocida
Machaeridia indet.
Cephalopoda
Nautiloidea indet. Agassiz 1847
Gastropoda
Holopea sp. Hall 1847
    = Gastropoda indet. Cuvier 1795
Wagner 2023
Gastropoda - Bellerophontida - Pterothecidae
Trimerella cf. wisbyensis
    = Pterotheca trimerelloides n. sp. Clarkson et al. 1995
Clarkson et al. 1995
Gastropoda - Murchisoniina - Loxonematidae
Loxonema sp. Phillips 1841
genus name in quotes
Gastropoda - Murchisoniina - Eotomariidae
? Liospira simulans (Salter 1861)
Gastropoda - Euomphalina - Craspedostomatidae
Spirina antiquata (Salter 1861)
Gastropoda - Euomphalina - Oriostomatidae
? Gyronema salteri (Haswell 1865)
recombined as Hecetastoma salteri
Bivalvia - Nuculida - Praenuculidae
? Synek sp. Barrande 1881
Bivalvia - Ostreida - Pterineidae
Leptodesma (Leptodesma) sp. Hall 1883
Bivalvia - Cyrtodontida - Cyrtodontidae
? Cyrtodontula sp. Tomlin 1931
Bivalvia - Modiomorphida - Allodesmatidae
? Anodontopsis lucina
Bivalvia - Solenida - Orthonotidae
Orthonota sp. Conrad 1841
Ostracoda - Palaeocopida - Craspedobolbinidae
Craspedobolbina (Mitrobeyrichia) impendens
Malacostraca - Archaeostraca
Dictyocaris sp. Salter 1860
Trilobita - Phacopida - Phacopidae
Acernaspis (Eskaspis) sufferta (Lamont 1947)
Trilobita - Phacopida - Encrinuridae
Encrinurus expansus (Haswell 1865)
Hexactinellida - Reticulosa - Amphispongiidae
Amphispongia oblongata
see common names

Geography
Country:United Kingdom State/province:Scotland
Coordinates: 55.8° North, 3.4° West (view map)
Paleocoordinates:15.8° South, 20.8° West
Basis of coordinate:based on nearby landmark
Geographic resolution:local area
Time
Period:Silurian Epoch:Llandovery
Stage:Telychian 10 m.y. bin:Silurian 1
*International age/stage:Late/Upper Telychian
Key time interval:Telychian Graptolite zone: Cyrtograptus lapworthi
Age range of interval:438.50000 - 433.40000 m.y. ago
* legacy (obsolete) database fields
Stratigraphy
Formation:Wether Law Linn Member:Grain Heads Siltstone
Local section:North Esk Local bed:1650 m
Local order:bottom to top
Stratigraphic resolution:bed
Stratigraphy comments: I had this as Cyrtograptus lapworthi; Ebbestad & Gutierrez-Marco (2017) say Stimulograptus sedgwickii/Cyrtograptus insectus. Was "Lower" = Grain Heads Siltstone member.
Lithology and environment
Primary lithology:bioturbation silty mudstone
Secondary lithology:bioturbation sandy siltstone
Includes fossils?Y
Includes fossils?Y
Lithology description: Occurs in silty mudstones and fine-sandy siltstones...low intensity of bioturbation
Environment:marine indet.
Geology comments: Judged to consist of disturbed neighborhood assemblages. Fossils rarely damaged, locally in life position. May be biocoenosis. Moderate fossil abundance and low intensity of bioturbation suggests rapid deposition. Burrow marins poorly defined, suggesting soft sediments. Low energy environment. Fossils slightly disturbed by bioturbation and weak currents.
Overall sequence of sediments treated here "represents a marine regression from offshore turbidite facies, through shallow water facies with abundant flora and fauna, to terrestrial red beds, of Old Red Sandstone facies. Sediments belonging to the highest Cock Rig Formation and Lower Member of the Wether Law LInn Formation constitute part of the shallow water marine facies."
Taphonomy
Modes of preservation:body
Size of fossils:macrofossils
Collection methods and comments
Reason for describing collection:paleoecologic analysis
Collection method comments: Author gives percent abundance data, averaged over numerous sampled blocks.
Metadata
Also known as:?Liospira simulans-?Synek sp. Assoc., low Wether Law Linn Fm., Pentland Hills
Database number:23302
Authorizer:M. Foote, P. Wagner Enterer:M. Foote, P. Wagner
Modifier:P. Wagner Research group:marine invertebrate
Created:2002-07-11 15:11:37 Last modified:2018-04-12 10:53:20
Access level:the public Released:2002-07-11 15:11:37
Creative Commons license:CC BY
Reference information

Primary reference:
6691. G. Robertson. 1999. Upper Llandovery fossil associations in the Pentland HIlls, Scotland. In A. J. Boucot and J. D. Lawson (eds.), Paleocommunities--a case study from the Silurian and Lower Devonian 408-418 [M. Foote/M. Foote/M. Foote]

Secondary references:

15808 E.N.K. Clarkson, D.A.T. Harper, and J.S. Peel. 1995. Taxonomy and palaeoecology of the mollusc Pterotheca from the Ordovician and Silurian of Scotland. Lethaia 28(1):101-114 [P. Wagner/P. Wagner]
9042 P. J. Wagner. 2023. Paleozoic Gastropod, Rostroconch, Helcionelloid and Tergomyan Database (2006 - 2023). [P. Wagner/P. Wagner/P. Wagner]