Kallholn, Boda Lst. (Ordovician of Sweden)

Also known as Reef 1853

Where: Dalarna, Sweden (61.2° N, 14.7° E: paleocoordinates 28.2° S, 7.0° W)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Amorphognathus ordovicicus conodont zone, Boda Limestone Formation, Katian (453.0 - 445.2 Ma)

• Boda Core. Isberg uses "jüngerer Riffkalk" which is the "Boda Limestone". Details of the stratigraphy of the Boda Limestone can be found in:

•Rasmussen, C. M., Ebbestad, J. O. R. & Harper, D. A. T. 2010. Unravelling a Late Ordovician pentameride (Brachiopoda) hotspot from the Boda Limestone, Siljan district, central Sweden. – GFF 132(3) 3: 133-152.

•Suzuki, Y., Bergström, J. 1999. Trilobite taphonomy and ecology in Upper Ordovician carbonate buidups in Dalarna, Sweden. – Lethaia 32 195–172.

• formation-level stratigraphic resolution

Environment/lithology: reef, buildup or bioherm; shelly/skeletal lime mudstone

• This formation consists of a number of isolated fossiliferous carbonate lenses, which have been referred to previously as organic reefs. Recent studies (Jaanusson in Ross et al., 1975, and Jaanusson, 1979) have shown, however, that no organic control or frame during the growth of these lenses can be recognized, and for this reason the term "car- bonate mounds" is deemed more suitable."

Size classes: macrofossils, mesofossils

Preservation: cast, replaced with calcite

Collected by O. Isberg, E. Warburg, among others in 1913-1914, 1916-1918, 1923, 1924, 1932

• Isberg stated tha the material is in the collection of the Swedish Museum of Natural History (Naturhistoriska Riksmuseet), Stockholm;

•Paleontological Institute of Uppsala; "Geologische Landesanstalt" "Geol. - Min Museum Gotenburg", all Sweden

Primary reference: O. Isberg. 1934. Studien über Lamellibranchiaten des Leptaenakalkes in Dalarna. Håkan Ohlssons Buchdruckerei 1-493 [P. Wagner/P. Wagner/B. Kröger]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 124939: authorized by Björn Kröger, entered by Björn Kröger on 29.02.2012

Creative Commons license: CC BY (attribution)

Taxonomic list

Trilobita
 Corynexochida - Styginidae
"Bronteus laticauda" = Eobronteus laticauda11
"Bronteus laticauda" = Eobronteus laticauda11 Wahlenberg 1818 trilobite
 Corynexochida - Illaenidae
Illaenus dalecarlicus11 Warburg 1925 trilobite
Illaenus oviformis11 Warburg 1925 trilobite
"Illaenus roemeri" = Illaenus (Parillaenus) roemeri11 Volborth 1864 trilobite
Illaenus (Parillaenus) dalecarlicus3 Warburg 1925 trilobite
1 specimen
Illaenus linnarssoni11 Holm 1882 trilobite
 Odontopleurida - Odontopleuridae
Acidaspis sp.11 Murchison 1839 trilobite
Acidaspis evoluta11 Törnquist 1884 trilobite
Acidaspis laticapitata11 Warburg 1925 trilobite
Primaspis evoluta2 Törnquist 1884 trilobite
Apianurus clevei2 Warburg 1925 trilobite
Whittingtonia bispinosa2 McCoy 1846 trilobite
Ceratocephala laticapitata2 Warburg 1925 trilobite
 Aulacopleurida - Rorringtoniidae
Isbergia planifrons11 Warburg 1925 trilobite
Isbergia parvula11 Warburg 1925 trilobite
 Aulacopleurida - Holotrachelidae
Holotrachelus punctillosus11 Törnquist 1884 trilobite
 Aulacopleurida - Aulacopleuridae
Cyphaspis sp.11 Burmeister 1843 trilobite
 Aulacopleurida - Brachymetopidae
Scharyia heothina7 Owens 1974 trilobite
  - Isocolidae
Isocolus sjogreni11 Angelin 1854 trilobite
 Phacopida - Encrinuridae
Encrinurus striatus11 Angelin 1854 trilobite
 Phacopida - Cheiruridae
Nieszkowskia sp.11 Schmidt 1881 trilobite
Cheirurus clasoni11 Törnquist 1905 trilobite
Pompeckia minor11 Warburg 1925 trilobite
Pompeckia wegelini11 Angelin 1854 trilobite
Pseudosphaerexochus tuberculatus11 Warburg 1925 trilobite
Pseudosphaerexochus conformis11 Angelin 1854 trilobite
Sphaerexochus calvus11 Mc Coy 1846 trilobite
Sphaerocoryphe punctata11 Angelin 1854 trilobite
 Phacopida - Pliomeridae
 Phacopida - Calymenidae
Pharostoma leptaenarum11 Törnquist 1884 trilobite
 Harpida - Harpetidae
"Harpes costatus" = Hibbertia costatus11
"Harpes costatus" = Hibbertia costatus11 Angelin 1854 trilobite
 Proetida - Tropidocoryphidae
"Proetus pentagonoides" = Stenoblepharum pentagonoides11
"Proetus pentagonoides" = Stenoblepharum pentagonoides11 Warburg 1925 trilobite
 Proetida - Proetidae
Proetus modestus11 trilobite
Proetus remotus11 trilobite
Proetus convexus11 trilobite
Proetus sp.11 Steininger 1831 trilobite
"Proetus parvigena" = Parvigena parvigena11 Warburg 1925 trilobite
  - Ityophoridae
Ityophorus undulatus11 Warburg 1925 trilobite
 Lichida - Lichidae
Platylichas sp.11 Gürich 1901 trilobite
"Platylichas angulatus" = Platylichas (Rontrippia) angulatus11 Warburg 1925 trilobite
Lichas affinis11 Angelin 1854 trilobite
Amphilichas dalecarlicus11 Angelin 1854 trilobite
Amphilichas wahlenbergi11 Warburg 1925 trilobite
Amphilichas latifrons11 Warburg 1925 trilobite
Amphilichas periformis11 Warburg 1925 trilobite
Amphilichas parvulus11 Warburg 1925 trilobite
Amphilichas lineatus11 Angelin 1854 trilobite
Strophomenata
 Productida - Anopliidae
 Orthotetida - Triplesiidae
Amphiplecia tardicostata12 Wright and Jaanusson 1993
Grammoplecia triplesioides12 Wright and Jaanusson 1993
 Strophomenida - Strophomenidae
Luhaia sp.10 Roomusoks 1956
Lingulata
 Lingulida - Disciniidae
Orbiculoidea gibba4 Lindström 1880
Rostroconchia
 Conocardiida - Pseudobigaleaidae
"Conocardium lindstromi" = Bitrigonocardia elegantula, "Conocardium pygmaeum" = Bitrigonocardia isbergi
"Conocardium lindstromi" = Bitrigonocardia elegantula Billings 1866
"Conocardium pygmaeum" = Bitrigonocardia isbergi Branson 1942
Bivalvia
 Cyrtodontida - Cyrtodontidae
Macrodesma modesta Isberg 1934 clam
Warburgia oviformis Isberg 1934 clam
Warburgia lata Isberg 1934 clam
Warburgia iniqua Isberg 1934 clam
Warburgia crassa Isberg 1934 clam
Thorslundia bellistriata Isberg 1934 clam
Vanuxemia odhneri Isberg 1934 clam
Cyrtodonta kallholniensis Isberg 1934 clam
Cyrtodonta schmalenseei Isberg 1934 clam
Cyrtodonta orsae Isberg 1934 clam
Cyrtodonta mira Isberg 1934 clam
Cyrtodonta suecica Isberg 1934 clam
Cyrtodonta megumbona Isberg 1934 clam
Cyrtodonta dalecarlica Isberg 1934 clam
Cyrtodonta mobergi Isberg 1934 clam
Cyrtodontula delacarlica Isberg 1934 clam
Heikea rara Isberg 1934 clam
Heikea insolita Isberg 1934 clam
Heikea lata Isberg 1934 clam
Heikea fragilis Isberg 1934 clam
Heikea subglobosa Isberg 1934 clam
Heikea parva Isberg 1934 clam
Heikea reniformis Isberg 1934 clam
Heikea plana Isberg 1934 clam
Heikea pulchra Isberg 1934 clam
Heikea megumbona Isberg 1934 clam
Heikea extumida Isberg 1934 clam
Heikea saffordi Isberg 1934 clam
Heikea ventricosa Isberg 1934 clam
Heikea preciosa Isberg 1934 clam
Heikea ovata Isberg 1934 clam
Heikea glabra Isberg 1934 clam
Heikea globosa Isberg 1934 clam
Heikea filberta Isberg 1934 clam
Heikea communis Isberg 1934 clam
Heikea oblonga Isberg 1934 clam
Heikea selecta Isberg 1934 clam
Heikea fallax Isberg 1934 clam
Heikea ulrichi Isberg 1934 clam
 Myalinida - Myalinidae
Myalina orsae Isberg 1934 clam
Myalina leptaenarum Isberg 1934 clam
Myalina dalecarlica Isberg 1934 clam
 Myalinida - Ambonychiidae
Mytilarca expansa Isberg 1934 clam
Mytilarca iniqua Isberg 1934 clam
Mytilarca kallholniensis Isberg 1934 clam
Mytilarca orsae Isberg 1934 clam
Mytilarca leptaenarum Isberg 1934 clam
Praeanomalodonta scutulata Isberg 1934 clam
Praeanomalodonta foerstei Isberg 1934 clam
"Ambonychinia pulchella" = Cleionychia pulchella Lindstrom 1880 clam
Ambonychinia rhomboidalis Isberg 1934 clam
Ambonychinia extumida Isberg 1934 clam
Ambonychinia elegans Isberg 1934 clam
Ambonychinia quadrangulata Isberg 1934 clam
Ambonychinia striata Isberg 1934 clam
Ambonychinia corrugata Isberg 1934 clam
Ambonychinia intermedia Isberg 1934 clam
Ambonychinia subiniqua Isberg 1934 clam
Ambonychinia undulata Isberg 1934 clam
Ambonychinia pediculata Isberg 1934 clam
Ambonychinia volvens Isberg 1934 clam
Ambonychinia kallholniensis Isberg 1934 clam
Ambonychinia levis Isberg 1934 clam
Ambonychinia excelsa Isberg 1934 clam
Ambonychinia radiata Isberg 1934 clam
Elasmodophora acutirostris Isberg 1934 clam
Anomalocoelia transplicata Isberg 1934 clam
Paramytilarca levis Isberg 1934 clam
Paramytilarca umbonella Isberg 1934 clam
Paramytilarca glabra Isberg 1934 clam
Paramytilarca oviformis Isberg 1934 clam
Paramytilarca ventricosa Isberg 1934 clam
Amphicoelia transplicata Isberg 1934 clam
 Ostreida - Pteriidae
Ptychopterinia sinuosa Isberg 1934 pearl oyster
Ptychopterinia cf. sinuosa Isberg 1934 pearl oyster
 Ostreida - Vlastidae
Shaninopsis sp. Isberg 1934 oyster
Shaninopsis subcircularis Isberg 1934 oyster
Shaninopsis oblonga Isberg 1934 oyster
Shaninopsis grandipes Isberg 1934 oyster
Shaninopsis prona Isberg 1934 oyster
Shaninopsis striata Isberg 1934 oyster
Shaninopsis modesta Isberg 1934 oyster
Shaninopsis bellistriata Isberg 1934 oyster
Shaninopsis beushauseni Isberg 1934 oyster
Shaninopsis pygmaea Isberg 1934 oyster
Shaninopsis subinformis Isberg 1934 oyster
Shaninopsis ventricosa Isberg 1934 oyster
Shaninopsis rotunda Isberg 1934 oyster
Shaninopsis quadricyclia Isberg 1934 oyster
Shaninopsis circularis Isberg 1934 oyster
Shaninopsis erecta Isberg 1934 oyster
Shaninopsis radiata Isberg 1934 oyster
Shaninopsis reedi Isberg 1934 oyster
 Mytilida - Modiolopsidae
Dipleurodonta glabra Isberg 1934 clam
Dipleurodonta pulchella Isberg 1934 clam
Ectenocardiomorpha acuta Isberg 1934 clam
Ectenocardiomorpha elongata Isberg 1934 clam
Ectenocardiomorpha volvens Isberg 1934 clam
 Carditida - Cardiniidae
Cypricardinia dalecarlica Isberg 1934 clam
 Cardiida - Kalenteridae
Cypricardites bidens Isberg 1934 clam
Cypricardites mobergi Isberg 1934 clam
Cypricardites suecicus Isberg 1934 clam
 Modiomorphida - Modiomorphidae
Byssodesma ulrikae Isberg 1934 clam
Modiolopsis pygmaea Isberg 1934 clam
Modiolopsis dalecarlica Isberg 1934 clam
Modiolopsis kallholniensis Isberg 1934 clam
Modiolopsis leptaenarum Isberg 1934 clam
Semicorallidomus whitfieldi Isberg 1934 clam
Eurymyella suecica Isberg 1934 clam
Eurymyella dalecarlia Isberg 1934 clam
Callodonta monilifera Isberg 1934 clam
Modiomorpha kallholniense Isberg 1934 clam
 Cardiomorphi - Lipanellidae
Goniophorina semiradiata Isberg 1934 clam
Goniophorina volvens Isberg 1934 clam
 Trigoniida - Myophoriidae
Myophoria ebbae Isberg 1934 clam
 Protobranchia - Ctenodontidae
Ctenodonta tornquisti Isberg 1934 clam
Ctenodonta dalecarlica Isberg 1934 clam
Ctenodonta kallholniensis Isberg 1934 clam
Ctenodonta schmalenseei Isberg 1934 clam
Ctenodonta pygmaea Isberg 1934 clam
Cephalopoda
 Orthocerida - Proteoceratidae
Isorthoceras heroyense5 Strand 1934
Isorthoceras dalecarlense5 Kröger et al. 2011
Isorthoceras angelini5 Kröger 2013
Isorthoceras suave5 Angelin and Lindström 1880
Gorbyoceras sp.5 Shimizu and Obata 1935
 Orthocerida - Dawsonoceratidae
Dawsonoceras stumburi5 Kröger 2013
Dawsonoceras fenestratum5 Eichwald 1860
Palaeodawsonocerina sp.5 Kröger and Isakar 2006
 Orthocerida - Eriditidae
 Orthocerida - Orthoceratidae
Striatocycloceras sp.5 Kröger and Isakar 2006
 Orthocerida - Sinoceratidae
Tyrioceras kjaerulfi5 Strand 1934
 Orthocerida - Lituitidae
 Orthocerida - Geisonoceratidae
Geisonoceras sp.5 Hyatt 1884
Geisonoceras wegelini5 Teichert 1930
 Discosorida - Cyrtogomphoceratidae
Strandoceras sphinx5 Schmidt 1858
Kiaeroceras heroyense5 Strand 1934
 Barrandeocerida - Apsidoceratidae
 Barrandeocerida - Uranoceratidae
Warburgoceras longitudinale5 Angelin and Lindström 1880
Siljanoceras sp.5 Kröger 2013
Siljanoceras varians5 Kröger 2013
 Ascocerida - Probillingsitidae
Redpathoceras sp.5 Flower 1963
Redpathoceras bullatum5 Kröger 2013
Redpathoceras depressum5 Kröger 2013
Redpathoceras magnum5 Kröger 2013
 Ascocerida - Ascoceratidae
 Ascocerida - Hebetoceratidae
Parvihebetoceras wahli5 Kröger 2007
 Endocerida -
"Cameroceras hasta" = Rossicoceras hasta5
"Cameroceras hasta" = Rossicoceras hasta5 Balashov 1962
 Endocerida - Endoceratidae
 Tarphycerida - Trocholitidae
Discoceras roemeri5, "Discoceras antiquissimum" = Discoceras antiquissima5
Discoceras roemeri5 Strand 1934
"Discoceras antiquissimum" = Discoceras antiquissima5 Eichwald 1842
 Oncocerida - Oncoceratidae
Beloitoceras sp.5 Foerste 1924
"Beloitoceras sinuososeptatum" = Richardsonoceras sinuososeptatum5 Roemer 1861
 Oncocerida - Diestoceratidae
 Oncocerida -
Rhombifera
 Caryocystitida - Caryocystitidae
"Caryocystites variabilis" = Caryocystites variabilis1, "Heliocrinites variabilis" = Caryocystites variabilis8
"Caryocystites variabilis" = Caryocystites variabilis1 Regnell 1945
"Heliocrinites variabilis" = Caryocystites variabilis8 Regnell 1945
Crinoidea
 Hybocrinida - Cornucrinidae
Cornucrinus mirus9 Regnell 1948 Sea lily
Diploporita
  - Sphaeronitidae
Anthozoa
 Stauriida - Streptelasmatidae
Streptelasma primum6 Wedekind 1927 horn coral