Silurian Ostracods of gotland
The Ostracod Fauna
The Ostracod fauna of Gotland is one of the most diverse Silurian assemblages known, but with the exception of the Beyrichiidae is largely undescribed. Most specimens can be confidently assigned at the generic level, but many may be new species. In the section below the only species names used are ones that have appeared in the scientific literature. [Please excuse the lack of italics, bold or underlining of the scientific names but some reason it is not an option in this page editor]
Stratigraphic column
Acanthoscapha sp.
Horsne, Halla Formation, unit b
Left: The complete geological column as it appears on the island of Gotland. The material most readily available to collectors often comes from the Visby Beds at the base of the Wenlock, but the Mulde and Slite Formations in the middle and upper Wenlock are also periodically encountered. Material from most other beds is rare due to limited coastal exposures (the most easily accessible sites at the present time).
Aechmina sp.
Klintebys, Slite Beds
Aechminella sp.
Horsne, Halla Formation unit b
Aparchites sp.
Lau Backar, Eke Formation
Altha sp.
Snoder, Hemse Formation
Amphisella sp.
Hoburgen, Burgsvick Formation
Apotobolbina tricuspidata
Irevik, Visby Formation
Apotobolbina tricuspidata
Irevik II, Visby Formation
Apatobolbina simplicidorsata
Nyhamn I, Lower Visby Formation
Arczonidae
Lau Backar, Eke Formation
Beyrichia halliana
Irevik II, Visby Formation
Beyrichia globifer
Lau Backar, Eke Formation
Beyrichia subordinata
Gothemshammar I, Halla Formation
Beyrichia subordinata
Gothemshammar I, Halla Formation
Beyrichia hellviensis
Langars, Slite Formation
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Beyrichia snoderiana
Snoder, Hemse Formation
Bolbibollia sp.
Follingbro 7, Slite Formation
Bollia sp.
Gothemshammar I, Halla Formation
Cadmaea sp.
Kvarnbarget, Slite Formation unit g
Bythocypris sp.
Hoburgen IIa, Burgsvick Formation
Clavoflabella sp.
Lau Backar, Eke Formation
Clientiella sp.
Lau Backar, Eke Formation
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Clintiella sp.?
Gothemshammar I, Halla Formation
Craspidobolbina clavata
Mulde I, Slite Formation
Craspidobolbina percurrens
Eskelhamn, Slite Formation
Craspidobolbina percurrens
Eskelhamn, Slite Formation
Craspidobolbina sinnarvensis
Kettlehamn, Slite Formation
Craspidobolbina variolata
Svarvare, Slite Formation
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Craspidobolbina unculifera
Irevik II, Visby Formation
Craspidobolbina unculifera
Irevik II, Visby Formation
Diceratobolbina sp.
Hoburgen IIa, Burgsvick Formation
Eupremitia sp.
Langars, Slite Formation
Garniella concinna
Langars, Slite Formation
Euglyphella sp.
Klintebys, Mulde Formation
Gotlandella sp.
Klintebys, Mulde Formation
Healdia sp.
Irevik II, Visby Formation
Hemsiella loensis
Lau Backar, Eke Formation
Holinella sp.
Kvarnberget, Slite Formation
Jagutiella sp.
Klintebys, Mulde Formation
Juviella juvensis
Hoburgen IIa, Burgsvick Formation
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Kloedenella sp.
Klintebys, Mulde Formation
Leiocyamus sp.
Gothemshammar, Halla Beds
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Leptobolbina hypnodes
Nyhamn, Lower Visby Formation
Leptobolbina hypnodes
Nyhamn, Lower Visby Formation
Leperdetia sp.?
Lau Backar, Eke Formation
Leptobolbina quadricuspidata
Nyhamn, Lower Visby Formation
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Leptobolbina quadricuspidata
Nyhamn, Lower Visby Formation
Loisellites sp.
Nyhamn, Lower Visby Formation
Longicula sp.
Nyhamn, Lower Visby Formation
Libumella sp.
Langars, Slite Formation
Neo beyrichia
Gothemshammar, Halla Beds
Neoprimitiella sp.
Nyhamn, Lower Visby Formation
Monoceratina sp.
Lau Backar, Eke Formation
Octonaria sp.
Klintebys, Slite Beds
Parahippa sp.
Lau Backar, Eke Formation
Paraparchites sp.
Hoburgen IIa, Burgsvick Formation
.JPG/:/rs=w:360,cg:true,m)
Paraprimitea sp.
Nyhamn, Lower Visby Formation
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Paraschmidtella sp.
Lau Backar, Eke Formation
Quasilites sp.
Nyhamn, Lower Visby Formation
Schweyerina sp.
Dapps, upper Mulde Formation
Silenis sp.
Langars, Slite Formation
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Thlipsurella sp.
Kettlenken, Slite Formation
Ostracods part II and Other Microfossils
Thlipsura corpulenta
Klintebys, Slite Formation
Ulrichella sp.
Snoder, Hemse Formation
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Tubulibairdia sp.
Langars, Slite Formation
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Conochitina sp.
Chitinozoa, Ynge, Visby formation
Holothurian wheel
Nyhamn, Lower Visby Formation
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Aptilechinus caledonensis
Echinoid plate, Visby Formation
Atractosella cataractaca
Octacoral spicule Visby Formation
Thelodont Fish Scale
Gothemshammar, Halla Formation
Kettnerites sp.
Scolecodont Visby Formation
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