Coolin Lough [Kilbride Fm] (Silurian of Ireland)

Where: Ireland (53.5° N, 9.4° W: paleocoordinates 18.5° S, 24.1° W)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Kilbride Formation, Telychian (438.5 - 433.4 Ma)

• STRATIGRAPHIC RELATIONS: From the Kilbride Fm, which overlies the Lough Mask Fm, and is overlain by the Tonalee Fm. AGE: Late Llandovery on the basis of conodont biostratigraphy. STRATIGRAPHIC POSITION: From the Annelid Grits, in the lower part of the Kilbride Fm.

•Telychian according to Evans (1994. Irish J. Earth Science 13:113-148.

• bed-level stratigraphic resolution

Environment/lithology: transition zone or lower shoreface; lithified, coarse-grained, shelly/skeletal, calcareous sandstone

• Nearshore, high-energy environments.
• SPECIFIC LITHOLOGY: Calcareous coarse bioclastic sandstone. LITHIFICATION: Lithified, on the basis of preparation techniques.

Size class: macrofossils

Preservation: original calcite, original phosphate

Collection methods: bulk, chemical, hydroflouric, sieve,

• COLLECTOR: Aldridge et al. REPOSITORY: James Mitchell Museum, University College, Galway. METHODOLOGY: Two samples, one of 5 kg and one of 0.55 kg, were processed and the residues concentrated using bromoform. To attain complete breakdown, the smaller sample was also treated with hydrofluoric acid.

Primary reference: R. J. Aldridge, S. Turner, G.L. Jones and D.A.T. Harper. 1996. Late Llandovery thelodonts and conodonts from the Kilbride Formation, Co. Galway, western Ireland. Geological Journal 31(4):359-367 [P. Wagner/P. Wagner/A. Hendy]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 90302: authorized by Austin Hendy, entered by Austin Hendy on 15.07.2009, edited by Pete Wagner

Creative Commons license: CC BY (attribution)

Taxonomic list

• COVERAGE: Exhaustive for vertebrates, but restricted to charactersitic invertebrate taxa. NOMENCLATURE: Appears to be fairly modern nomenclature, with species resolution identifications.
Trilobita
 Aulacopleurida - Aulacopleuridae
Harpidella megalops McCoy 1846 trilobite
Rhynchonellata
 Rhynchonellida - Leptocoeliidae
Eocoelia curtisi Ziegler 1966
Cephalopoda
 Orthocerida - Dawsonoceratidae
Dawsonoceras ? fimbriatum de Sowerby and Murchison 1839
Conodonta
 Panderodontida - Panderodontidae
Panderodus sp. Ethington 1959 conodont
 Prioniodontida - Distomodontidae
Distomodus sp. Branson and Branson 1947 conodont
 Ozarkodinida -
Ozarkodina sp. Branson and Mehl 1933 conodont
 Ozarkodinida - Spathognathodontodae
"Ozarkodina cf. excavata" = Wurmiella excavata
"Ozarkodina cf. excavata" = Wurmiella excavata Branson and Mehl 1933 conodont
 Prioniodontida - Balognathidae
Icriodella aff. deflecta Aldridge 1972 conodont
Agnatha
 Loganelliformes - Loganelliidae
Loganellia cf. scotica Traquair 1898 jawless fish