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Wether Law Linn - Grain Heads Siltstone, Scotland, UK

Formation	Wether Law Linn
Member	Grain Heads Siltstone
Age:	439 - 433 Ma Silurian
Interval	Telychian
Lithology	mudstone/siltstone, siltstone
Number of Collections	3
Number of Occurrences	88

Recorded Sample Locations

Location	Region	Stratigraphic Name
Wether Law Linn	Scottish Borders, Scotland, UK	Wether Law Linn - Grain Heads Siltstone
Lynslie Burn	Scottish Borders, Scotland, UK	Wether Law Linn - Grain Heads Siltstone
North Esk River	Midlothian, Scotland, UK	Wether Law Linn - Grain Heads Siltstone

Recorded Fossils

Accepted Name	Type	Hierarchy	Age
Hyolithes sp. genus	6	Animalia : Hyolitha : Hyolithida : Hyolithidae : *Hyolithes*	438.5 - 433.4 Ma Silurian
Machaeridia unranked clade	99	Animalia : Annelida : Polychaeta : Phyllodocida : Machaeridia	438.5 - 433.4 Ma Silurian
Dictyocaris sp. genus	6	Animalia : Arthropoda : Malacostraca : *Dictyocaris*	438.5 - 433.4 Ma Silurian
Craspedobolbina sp. genus	6	Animalia : Arthropoda : Ostracoda : Palaeocopida : Beyrichiidae : *Craspedobolbina*	438.5 - 433.4 Ma Silurian
Encrinurus expansus species	7	Animalia : Arthropoda : Trilobita : Phacopida : Encrinuridae : Encrinurus : *Encrinurus expansus*	438.5 - 433.4 Ma Silurian
Acernaspis (Eskaspis) sufferta species	7	Animalia : Arthropoda : Trilobita : Phacopida : Phacopidae : Acernaspis : *Acernaspis (Eskaspis) sufferta*	438.5 - 433.4 Ma Silurian
Cyphoproetus sp. genus	6	Animalia : Arthropoda : Trilobita : Proetida : Proetidae : *Cyphoproetus*	438.5 - 433.4 Ma Silurian
Lingula sp. genus	6	Animalia : Brachiopoda : Lingulata : Lingulida : Lingulidae : *Lingula*	438.5 - 433.4 Ma Silurian
Nucleospira pisum species	7	Animalia : Brachiopoda : Rhynchonellata : Athyridida : Nucleospiridae : Nucleospira : *Nucleospira pisum*	438.5 - 433.4 Ma Silurian
Pentlandella sp. genus	6	Animalia : Brachiopoda : Rhynchonellata : Atrypida : Anazygidae : *Pentlandella*	438.5 - 433.4 Ma Silurian
Atrypa sp. genus	6	Animalia : Brachiopoda : Rhynchonellata : Atrypida : Atrypidae : *Atrypa*	438.5 - 433.4 Ma Silurian
Isorthis (Ovalella) mackenziei species	7	Animalia : Brachiopoda : Rhynchonellata : Orthida : Dalmanellidae : Isorthis : *Isorthis (Ovalella) mackenziei*	438.5 - 433.4 Ma Silurian
Visbyella visbyensis species	7	Animalia : Brachiopoda : Rhynchonellata : Orthida : Dalmanellidae : Visbyella : *Visbyella visbyensis*	438.5 - 433.4 Ma Silurian
Dicoelosia verneuiliana species	7	Animalia : Brachiopoda : Rhynchonellata : Orthida : Dicoelosiidae : Dicoelosia : *Dicoelosia verneuiliana*	438.5 - 433.4 Ma Silurian
Dalejina sp. genus	6	Animalia : Brachiopoda : Rhynchonellata : Orthida : Rhipidomellidae : *Dalejina*	438.5 - 433.4 Ma Silurian
Skenidioides lewisii species	7	Animalia : Brachiopoda : Rhynchonellata : Protorthida : Skenidiidae : Skenidioides : *Skenidioides lewisii*	438.5 - 433.4 Ma Silurian
Sphaerirhynchia sp. genus	6	Animalia : Brachiopoda : Rhynchonellata : Rhynchonellida : Hebetoechiidae : *Sphaerirhynchia*	438.5 - 433.4 Ma Silurian
Cyrtia exporrectus species	7	Animalia : Brachiopoda : Rhynchonellata : Spiriferida : Cyrtiidae : Cyrtia : *Cyrtia exporrectus*	438.5 - 433.4 Ma Silurian
Coolinia applanata species	7	Animalia : Brachiopoda : Strophomenata : Orthotetida : Chilidiopsidae : Coolinia : *Coolinia applanata*	438.5 - 433.4 Ma Silurian
Coolinia pecten species	7	Animalia : Brachiopoda : Strophomenata : Orthotetida : Chilidiopsidae : Coolinia : *Coolinia pecten*	438.5 - 433.4 Ma Silurian
Strophochonetes sp. genus	6	Animalia : Brachiopoda : Strophomenata : Productida : Strophochonetidae : *Strophochonetes*	438.5 - 433.4 Ma Silurian
Leptaena purpurea species	7	Animalia : Brachiopoda : Strophomenata : Strophomenida : Rafinesquinidae : Leptaena : *Leptaena purpurea*	438.5 - 433.4 Ma Silurian
Eoplectodonta penkillensis species	7	Animalia : Brachiopoda : Strophomenata : Strophomenida : Sowerbyellidae : Eoplectodonta : *Eoplectodonta penkillensis*	438.5 - 433.4 Ma Silurian
Pentlandina sp. genus	6	Animalia : Brachiopoda : Strophomenata : Strophomenida : Strophomenidae : *Pentlandina*	438.5 - 433.4 Ma Silurian
Pentlandina tartana species	7	Animalia : Brachiopoda : Strophomenata : Strophomenida : Strophomenidae : Pentlandina : *Pentlandina tartana*	438.5 - 433.4 Ma Silurian
Helopora sp. genus	6	Animalia : Bryozoa : Stenolaemata : Cryptostomida : Arthrostylidae : *Helopora*	438.5 - 433.4 Ma Silurian
Ptilodictyia sp. genus	6	Animalia : Bryozoa : Stenolaemata : Cryptostomida : Ptilodictyidae : *Ptilodictyia*	438.5 - 433.4 Ma Silurian
Cystoporata order	4	Animalia : Bryozoa : Stenolaemata : Cystoporata	438.5 - 433.4 Ma Silurian
Eridotrypa sp. genus	6	Animalia : Bryozoa : Stenolaemata : Trepostomatida : Aisenvergiidae : *Eridotrypa*	438.5 - 433.4 Ma Silurian
Rugosa subclass	3.3	Animalia : Cnidaria : Anthozoa : Rugosa	438.5 - 433.4 Ma Silurian
Echinodermata phylum	2	Animalia : Echinodermata	438.5 - 433.4 Ma Silurian
Cyrtodontula sp. genus	6	Animalia : Mollusca : Bivalvia : Cyrtodontidae : *Cyrtodontula*	438.5 - 433.4 Ma Silurian
Anodontopsis sp. genus	6	Animalia : Mollusca : Bivalvia : Allodesmatidae : *Anodontopsis*	438.5 - 433.4 Ma Silurian
Modiolopsis sp. genus	6	Animalia : Mollusca : Bivalvia : Unionida : Iridinidae : *Modiolopsis*	438.5 - 433.4 Ma Silurian
Mytilarca sp. genus	6	Animalia : Mollusca : Bivalvia : Myalinida : Ambonychiidae : *Mytilarca*	438.5 - 433.4 Ma Silurian
Palaeoneilo sp. genus	6	Animalia : Mollusca : Bivalvia : Nuculanida : Malletiidae : *Palaeoneilo*	438.5 - 433.4 Ma Silurian
Sluha kosoviensis species	7	Animalia : Mollusca : Bivalvia : Nuculanida : Sluha : *Sluha kosoviensis*	438.5 - 433.4 Ma Silurian
Praenucula sp. genus	6	Animalia : Mollusca : Bivalvia : Nuculida : Praenuculidae : *Praenucula*	438.5 - 433.4 Ma Silurian
Leptodesma (Leptodesma) sp. subgenus	6.3	Animalia : Mollusca : Bivalvia : Ostreida : Pterineidae : Leptodesma : *Leptodesma (Leptodesma)*	438.5 - 433.4 Ma Silurian
Orthonota sp. genus	6	Animalia : Mollusca : Bivalvia : Unionida : Iridinidae : *Orthonota*	438.5 - 433.4 Ma Silurian
Nautiloidea subclass	3.3	Animalia : Mollusca : Cephalopoda : Nautiloidea	438.5 - 433.4 Ma Silurian
Gastropoda class	3	Animalia : Mollusca : Gastropoda	438.5 - 433.4 Ma Silurian
Pterotheca gath species	7	Animalia : Mollusca : Gastropoda : Bellerophontida : Pterothecidae : Pterotheca : *Pterotheca gath*	438.5 - 433.4 Ma Silurian
Spirina antiquata species	7	Animalia : Mollusca : Gastropoda : Euomphalina : Craspedostomatidae : Spirina : *Spirina antiquata*	438.5 - 433.4 Ma Silurian
Hecetastoma salteri species	7	Animalia : Mollusca : Gastropoda : Euomphalina : Oriostomatidae : Hecetastoma : *Hecetastoma salteri*	438.5 - 433.4 Ma Silurian
Liospira simulans species	7	Animalia : Mollusca : Gastropoda : Murchisoniina : Eotomariidae : Liospira : *Liospira simulans*	438.5 - 433.4 Ma Silurian
Loxonema sp. genus	6	Animalia : Mollusca : Gastropoda : Loxonematidae : *Loxonema*	438.5 - 433.4 Ma Silurian

References

Clarkson E.N.K., Harper D.A.T., et al (1995) Taxonomy and palaeoecology of the mollusc Pterotheca from the Ordovician and Silurian of Scotland, Lethaia 28 1, 101-114

Robertson G. (1999) Upper Llandovery fossil associations in the Pentland HIlls, Scotland, Paleocommunities--a case study from the Silurian and Lower Devonian, 408-418

Wagner P. J. (2017) Paleozoic Gastropod, Rostroconch, Helcionelloid and Tergomyan Database

Data courtesy of: PBDB: The Paleobiology Database, Creative Commons CC-BY licenced. , GBIF: the Global Biodiversity Information Facility, various licences, iDigBio, various licences, and EOL: The Encyclopedia of Life (Open Data Public Domain). Because fossils are made of minerals too!

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