FA1, Ricklow Quarry, Monyash, Derbyshire (Carboniferous of the United Kingdom)

Also known as Reef 4409

Where: United Kingdom (53.2° N, 1.8° W: paleocoordinates 4.5° S, 3.8° E)

• coordinate stated in text

• small collection-level geographic resolution

When: Monsal Dale Limestone Formation, Brigantian (336.0 - 330.9 Ma)

• group of beds-level stratigraphic resolution

Environment/lithology: reef, buildup or bioherm; lithified, lenticular reef rocks

• Mud mound complex in upper ramp setting.
• FA 1: This association characterises the basal unit of the mound complex. This unit is horizontal, 10 m thick, 250 m in diameter, and consists of an association

•of 3–5 cm thick nodular packstone beds and 5–100 cm thick tabular massive mud mounds (Fig. 4B). It has a sharp base overlying 1 m thick beds of fine-grained, wellsorted packstone–grainstone with peloids and bioclasts (foraminifers,

•crinoid ossicles). FA1 is lateral to beds of crinoidal grainstone/rudstone of the off-mound complex Monsal Dale Limestone Formation, while it gradually passes upward to the massive core of the mud mound complex (FA2).

Size class: macrofossils

Preservation: original calcite

Collection methods: surface (float),

• Collection of a precise and standard volume of rock was not possible, although sampling continued until no new species were recovered, obtaining a minimum volume from each locality of about 1.5 dm3; the minimum volume contains

•at least 30–40 specimens (number of articulated specimens + number of valves of the most occurring type + half number of the other type of valve), alongside many fragments.

•Additionally 39 smaller assemblages were collected from FA1

Primary reference: A. P. Carniti, G. Della Porta, V. J. Banks, M. H. Stephenson, and L. Angiolini. 2022. Brachiopod fauna from uppermost Visean (Mississippian) mud mounds in Derbyshire, UK. Acta Palaeontologica Polonica 67(4):865-915 [W. Kiessling/W. Kiessling]more details

Purpose of describing collection: paleoecologic analysis

PaleoDB collection 229498: authorized by Wolfgang Kiessling, entered by Wolfgang Kiessling on 14.03.2023

Creative Commons license: CC BY (attribution)

Taxonomic list

• Brachiopods only. In total, the collected fauna comprises more than

•400 specimens and hundreds of fragments.

•Since I could not find the table entry tool, I lumped occurrences by facies

Show authors, comments, and common names
Strophomenata
 Productida - Monticuliferidae
Linoprotonia sp.
 Productida - Echinoconchidae
Echinoconchus punctatus
 Productida -
Productoidea indet.
Productoidea indet. Gray 1840
listed as Reticulate Productoidea gen. et sp. indet.
 Productida - Productidae
Dictyoclostus pinguis, Pugilis cf. kilbridensis, Pugilis cf. scotica, Buxtonia scabricula, Buxtonia sp.
 Productida - Productellidae
Carringtonia cf. carringtoniana, Limbifera sp., Alitaria aff. triquetra, Antiquatonia hindi, Antiquatonia aff. hindi, Antiquatonia insculpta, Eomarginifera cf. laqueata, Productus sp., Quasiavonia aculeata, ? Quasiavonia sp., Krotovia spinulosa
Limbifera sp. Brunton and Mundy 1988
Antiquatonia insculpta Muir-Wood 1930
? Quasiavonia sp. Brunton 1966
Krotovia spinulosa Sowerby 1814
Rhynchonellata
 Spiriferida -
Spiriferida indet.
Spiriferida indet. Waagen 1883
 Spiriferida - Elythidae
Phricodothyris paricosta, Phricodothyris cf. periculosa, Phricodothyris sp.
Phricodothyris sp. George 1932
 Spiriferida - Martiniidae
Martiniinae indet.
Martiniinae indet. Waagen 1883
 Spiriferida - Brachythyrididae
Latibrachythyris cf. crassa
 Orthida - Schizophoriidae
Schizophoria cf. connivens, Schizophoria resupinata
 Rhynchonellida - Pugnacidae
Propriopugnus pugnus, Pleuropugnoides pleurodon
 Terebratulida -
Terebratulida indet.
 Terebratulida - Cranaenidae
Harttella oakleyi
 Terebratulida - Gillediidae
? Balanoconcha sp.