Zwolle (Ordovician to of Netherlands)

Where: Netherlands (52.5° N, 6.1° E: paleocoordinates 50.6° S, 8.9° W)

When: Haljala Erratics Formation, Idavere to Idavere (458.0 - 449.9 Ma)

• Sa2

• formation-level stratigraphic resolution

Environment/lithology: gray, yellow chert

• yellowish-grey cherts

Size class: macrofossils

Preservation: mold/impression

Primary reference: J. O. R. Ebbestad, F. Rhebergen, and A. P. Gubanov. 2017. Late Ordovician rostroconchs (Mollusca) from fluvial erratics in northwestern Europe. Bulletin of Geosciences 92(4):405-438 [P. Wagner/P. Wagner]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 192065: authorized by Pete Wagner, entered by Pete Wagner on 06.03.2018

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
unclassified
  -
Apidium pygmaeum
Gastropoda
 Euomphalina - Lesueurillidae
"Lesueurilla marginalis" = Mestoronema marginalis
"Lesueurilla marginalis" = Mestoronema marginalis d'Eichwald 1860 snail
 Euomphalina - Holopeidae
Holopea balticus
Holopea balticus Koken and Perner 1925 snail
 Bellerophontida - Bucaniidae
Megalomphala crassiuscula
Megalomphala crassiuscula Koken 1897 snail
Rostroconchia
 Ribeirioida - Ischyriniidae
Ischyrinia viator n. sp., Beukeria plicata n. sp., Tolmachovia sublirata n. sp.
Ischyrinia viator n. sp. Ebbestad et al. 2017
Beukeria plicata n. sp. Ebbestad et al. 2017
Tolmachovia sublirata n. sp. Ebbestad et al. 2017
Polychaeta
  -
Arachnostega gastrochaenae
Stenolaemata
 Trepostomata - Halloporidae
Diplotrypa petropolitana
Diplotrypa petropolitana Nicholson 1879
Craniata
 Craniida - Craniidae
Orthisocrania depressa, Orthisocrania curvicostae
Rhynchonellata
  - Praeargyrothecidae
Platystrophia chama
Platystrophia chama Eichwald 1861
Strophomenata
 Strophomenida - Sowerbyellidae
Sowerbyella (Sowerbyella) plana
Trilobita
 Phacopida - Pterygometopidae
Chasmops marginatus, Oculichasmops muticus
Chasmops marginatus Schmidt 1881 trilobite
 Phacopida - Cheiruridae
Nieszkowskia inermis, Hemisphaerocoryphe pseudohemicranium
Hemisphaerocoryphe pseudohemicranium Nieszkowski 1859 trilobite
 Phacopida - Encrinuridae
Atractocybeloides berneri
Atractocybeloides berneri Krueger 1991 trilobite
 Lichida - Lichidae
Otarozoum peri
Otarozoum peri Warburg 1939 trilobite
 Corynexochida - Illaenidae
Illaenus jewensis
 Trinucleida - Raphiophoridae
Lonchodomas rostratus
Lonchodomas rostratus Sars 1835 trilobite
Echinoidea
 Bothriocidaroida - Bothriocidaridae
Bothriocidaris pahleni
Dipnoi
 Dipteriformes - Rhynchodipteridae
Mastopora concava
Mastopora concava Eichwald 1840 lungfish
Ulvophyceae
  -
Vermiporella fragilis
Vermiporella fragilis Stolley 1893
Chlorophyceae
 Dasycladales - Dasycladaceae
Coelosphaeridium sphaericum, Cyclocrinites porosus
Cyclocrinites porosus Stolley 1896
Hoeegonites kringla
  -
Hoeegonites kringla
Hoeegonites kringla Nitecki and Spjeldnæs 1989