Period: 505 million to 438 million years ago.

Arthropods (13)

Entire range:

†Hoplolichas furcifer (Schmidt, 1885)

†Illaenus sarsi Jaanusson, 1954

†Opipeuter angularis (Young, 1973)

†Opipeuter emanuelensis emanuelensis Legg, 1976

†Opipeuter emanuelensis princeps Shergold, in Laurie & Shergold, 1996

†Opipeuter emanuelensis remorator Shergold, in Laurie & Shergold, 1996

†Opipeuter emanuelensis translator Shergold, in Laurie & Shergold, 1996

†Opipeuter inconnivus Fortey, 1974

†Opipeuter insignis Henderson, 1983

†Opipeuter priscus (Shergold, in Laurie & Shergold, 1996)

†Selenopeltis buchii (Barrande, 1846)

†Sphaeragnostus similaris (Barrande, 1872)

†Stygina latifrons (Portlock, 1843)

Molluscs (8)

Entire range:

†Ambonychia cultrata

†Ambonychia suberecta

†Ambonychia ulrichi

†Babinka prima

†Eopteria trilobata Kobayashi, 1934

†Rhytiodentalium kentuckyensis Pojeta & Runnegar, 1979

†Ribeiria lucan

†Technophorus coreanicus (Kobayashi, 1934) Pojeta & Runnegar, 1976:58, pl.11

Annelids (2)

Entire range:

†Kadriorgaspis kaisae Hints, 2006

†Xanioprion viivei Hints, 2006

Invertebrates (36)

Entire range:

†Brachiospongia digitata (Owen)

†Calapoecia ragi (Davis)

†Christiania perrugata

†Christiania perrugata multiridgia Harper, 2005

†Cyclospira girvanensis

†Cyclospira girvanensis aequabilis Harper, 2005

†Dicellograptus complanatus

†Dicellograptus complanatus ornatus

†Didymograptus bifidus

†Didymograptus protobifidus

†Favistella alveolata

†Glyptograptus euglyphus

†Glyptograptus teretiusculus

†Isograptus victoriae

†Jifarahpora libyensis Buttler et al., 2007

†Katastrophomena admiratio Harper, 2005

†Kiaeromena serrata Harper, 2005

†Leptaena beta Harper, 2005

†Nemagraptus gracilis

†Nubialba mccorryae Harper, 2005

†Origostrophia mitchelli Harper, 2005

†Orthidium gambolovensis Egerquist & Holmer, 2006

†Orthidium lavensis Egerquist & Holmer, 2006

†Orthograptus quadrimucronatus

†Orthograptus truncatus

†Orthograptus truncatus intermedius (Elles)

†Paraglossograptus etheridgei

†Ranorthis rotunda Egerquist & Holmer, 2006

†Receptaculites oweni Hall

†Rostricellula fulva Harper, 2005

†Skenidioides minutus Egerquist & Holmer, 2006

†Streptelasma corniculum Hall

†Tetradium fibratum Safford

†Tetragraptus approximatus

†Tetragraptus fruiticosus

†Tetragraptus fruticosus

Algae (7)

Entire range:

†Baltisphaeridium longispinosum (Eisenack, 1931)

†Leiofusa fusiformis (Eisenack, 1934)

†Leiosphaerdia baltica Eisenack, 1958

Lower limit:

†Cymatiosphaera multisepta Deunff, 1955

†Dorsennidium europaeum (Stockmans & Willière, 1960) Sarjeant & Stancliffe, 1994

†Dorsennidium europaeum subsp. europaeum (Stockmans & Willière, 1960) Sarjeant & Stancliffe, 1994

†Dorsennidium europaeum subsp. wenlockianum (Downie, 1959 ex Wall & Downie, 1963) Sarjeant & Stancliffe, 1994

Links

http://www.palaeos.com/Paleozoic/Ordovician/Ordovician.htm