Halla Beds: Fossils of Hoburgen-type reef limestone (Manten 1971, Table IX) (Silurian of Sweden)

Also known as Reef 1802

Where: Gotland, Sweden (57.5° N, 18.4° E: paleocoordinates 19.7° S, 2.6° W)

• coordinate based on political unit

• local area-level geographic resolution

When: Halla Beds Formation, Homerian (430.5 - 427.4 Ma)

• Correlation based on Jeppsson (1983), Fossils and Strata 15:128.

• group of beds-level stratigraphic resolution

Environment/lithology: reef, buildup or bioherm; limestone and reef rocks

• Ref. 11073: "Halla Beds (15m): In the eastern part of Gotland a series of shallow marine sediments was deposited on a discontinuity plane. Pure oolites at the base are overlain by bioturbated argillaceous limestones with an abundant but impoverished marine fauna, indicating marginal marine to lagoonal conditions. These limestones grade into conglomeratic oncolites which are interrupted by evenly abraded hardgrounds..."

Primary reference: A. A. Manten. 1971. Silurian Reefs of Gotland. Developments in Sedimentology 13:1-539 [M. Foote/M. Foote/P. Wagner]more details

Purpose of describing collection: paleoecologic analysis

PaleoDB collection 13599: authorized by Michael Foote, entered by Michael Foote on 15.04.2002

Creative Commons license: CC BY (attribution)

Taxonomic list

• Algae also included.
Show authors, comments, and common names
unclassified
  -
Strompatoporoidea indet.
Rothpletzella
  -
Rothpletzella sp.
Anthozoa
  -
Anthozoa indet.
Anthozoa indet. Ehrenberg 1834
 Favositida - Coenitidae
Coenites variablis
Coenites variablis tabulate coral
 Favositida - Favositidae
Favosites sp., Favosites gothlandicus
Favosites sp. Lamarck 1816 tabulate coral
Favosites gothlandicus Lamarck 1816 tabulate coral
 Favositida - Pachyporidae
Thamnopora sp.
Thamnopora sp. Steininger 1831 tabulate coral
 Favositida - Theciidae
Thecia swinderniana
Thecia swinderniana Goldfuss 1829 tabulate coral
 Auloporida - Syringoporidae
Syringopora sp.
Syringopora sp. Goldfuss 1826 tabulate coral
 Auloporida - Auloporidae
Aulopora sp.
Aulopora sp. Goldfuss 1829 tabulate coral
 Heliolitida - Halysitidae
Halysites sp., "Halysites catenulatus" = Halysites catenularius, "Halysites catenularius" = Halysites catenularius
Halysites sp. von Waldheim 1813 tabulate coral
"Halysites catenulatus" = Halysites catenularius Linnaeus 1767 tabulate coral
"Halysites catenularius" = Halysites catenularius Linnaeus 1767 tabulate coral
 Heliolitida - Plasmoporidae
Plasmopora scita
Plasmopora scita tabulate coral
 Heliolitida - Heliolitidae
Heliolites interstinctus, Heliolites sp.
Heliolites sp. Dana 1846 tabulate coral
 Stauriida - Acervulariidae
Acervularia ananas, Acervularia sp.
Acervularia sp. Schweigger 1819 horn coral
Stromatoporoidea
 Labechiida - Labechiidae
Labechia conferta
Labechia conferta Lonsdale 1839 stromatoporoid sponge
Crinoidea
  -
Crinoidea indet.
Crinoidea indet. Miller 1821 Sea lily
Bryozoa
  -
Bryozoa indet.
Bryozoa indet. Ehrenberg 1831
Stenolaemata
 Cystoporata - Fistuliporidae
Fistulipora sp.
Fistulipora sp. McCoy 1850
 Cryptostomata - Ptilodictyidae
Ptilodictya lanceolata
Ptilodictya lanceolata Goldfuss 1829
 Cryptostomata - Fenestellidae
Fenestella sp.
Fenestella sp. Lonsdale 1839
 Cyclostomata - Stomatoporidae
Stomatopora sp.
Stomatopora sp. Bronn 1825
Brachiopoda
  -
Brachiopoda indet.
Brachiopoda indet. Cuvier 1805
Rhynchonellata
 Spiriferida - Delthyrididae
Howellella elegans, Delthyris elevata
Howellella elegans Muir-Wood 1925
Delthyris elevata Dalman 1828
 Spiriferida - Cyrtinopsidae
Kozlowskiellina deltidialis
 Spiriferida - Cyrtiidae
Eospirifer sp., Eospirifer radiatus
Eospirifer sp. Schuchert 1913
Eospirifer radiatus Sowerby 1834
 Athyridida - Rhynchospirinidae
Rhynchospirina bouchardi
 Atrypida - Atrypidae
Atrypa reticularis
Atrypa reticularis Linnaeus 1758
 Orthida - Dalmanellidae
Resserella sp.
Resserella sp. Bancroft 1928
 Orthida - Rhipidomellidae
Rhipidomella hybrida
 Orthida - Platystrophiidae
"Platystrophia biforata" = Platystrophia biforatus
"Platystrophia biforata" = Platystrophia biforatus Schlotheim 1820
 Pentamerida - Gypidulidae
Gypidula galeata
Gypidula galeata Dalman 1828
 Rhynchonellida - Trigonirhynchiidae
Rhynchotreta cuneata
 Rhynchonellida - Rhynchotrematidae
"Camarotoechia borealis" = Stegerhynchus borealis
"Camarotoechia borealis" = Stegerhynchus borealis Buch 1834
 Rhynchonellida - Camarotoechiidae
Camarotoechia diodonta
 Rhynchonellida - Hebetoechiidae
Sphaerirhynchia wilsoni
Sphaerirhynchia wilsoni de Sowerby 1816
Strophomenata
 Strophomenida - Leptaenoideidae
Leptaenoidea silurica, "Strophomena rugata" = Leptaenoidea rugata
Leptaenoidea silurica Hedström 1917
"Strophomena rugata" = Leptaenoidea rugata Lindström 1861
"Strophomena" rugata Lindstrom
 Strophomenida - Rafinesquinidae
Leptaena rhomboidalis
Leptaena rhomboidalis Wahlenberg 1818
 Orthotetida - Orthotetidae
"Orthothetes adnata" = Orthotetes
"Orthothetes adnata" = Orthotetes
 Orthotetida - Schuchertellidae
Streptorhynchus nasutum
Chileata
 Dictyonellida - Eichwaldiidae
"Dictyonella sp." = Eodictyonella
"Dictyonella sp." = Eodictyonella Wright 1994
Lingulata
 Lingulida - Discinidae
Orbiculoidea sp.
Orbiculoidea sp. d'Orbigny 1847
Craniata
 Craniida - Craniidae
Crania sp.
Crania sp. Retzius 1781
Polychaeta
 Sabellida - Serpulidae
Spirorbis sp.
Spirorbis sp. Daudin 1800
Tentaculita
 Cornulitida - Cornulitidae
Conchicolites tuberculiferus, Conchicolites sp., Cornulites serpularius, Cornulites sp.
Conchicolites sp. Nicholson 1872
Cornulites sp. Schlotheim 1820
Bivalvia
 Modiomorphida - Cypricardiniidae
Cypricardinia sp.
Cypricardinia sp. Hall 1860 clam
Rostroconchia
 Conocardiida - Conocardiidae
Conocardium sp.
Conocardium sp. Bronn 1835
Gastropoda
 Euomphalina - Platyceratidae
"Platyceras cornutum" = Platyostoma cornutum
"Platyceras cornutum" = Platyostoma cornutum Hisinger 1837 snail
 Euomphalina - Craspedostomatidae
Craspedostoma sp.
Craspedostoma sp. Lindström 1884 snail
 Euomphalina - Oriostomatidae
"Poleumita globosum" = Oriostoma globosum
"Poleumita globosum" = Oriostoma globosum von Schlotheim 1820 snail
 Euomphalina - Euomphalidae
Poleumita sp.
Poleumita sp. Clarke and Ruedemann 1903 snail
Deuteropoda
  -
Ostracoda indet.
Ostracoda indet. Latreille 1802 ostracod
Trilobita
 Lichida - Lichidae
Arctinurus ornatus
 Corynexochida - Illaenidae
Bumastus sp.
Bumastus sp. Murchison 1839 trilobite
 Phacopida - Calymenidae
Calymene tuberculata, Calymene sp.
Calymene sp. Brongniart 1822 trilobite
[entered as Calmene sp.]
 Proetida - Proetidae
"Proetus delicatus" = Hedstroemia delicatus, Proetus sp.
"Proetus delicatus" = Hedstroemia delicatus Hedström 1923 trilobite
Proetus sp. Steininger 1831 trilobite
Rhodophyceae
  - Solenoporaceae
Solenopora sp.
Solenopora sp. Dybowski 1877
Algae
 Algae -
Algae indet.