Alken #3, Nellen Koepfchen Beds, Germany (Devonian of Germany)

Where: Alken, Germany (50.3° N, 7.5° E: paleocoordinates 26.4° S, 5.2° E)

• coordinate estimated from map

• outcrop-level geographic resolution

When: Early/Lower Emsian (409.1 - 402.5 Ma)

• plants present in different horizons

• group of beds-level stratigraphic resolution

Environment/lithology: lagoonal; argillaceous shale

• fine-grained, dark

Size class: macrofossils

Preservation: mold/impression, adpression, original carbon

Collection methods: quarrying, chemical, mechanical,

Primary reference: R. Kraeusel and H. Weyland. 1962. Algen und Psilophyten aus dem Unterdevon von Alken an der Mosel. Senckenbergiana Lethaea 43(4):249-282 [P. Gensel/C. Bernard/M. Uhen]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 27049: authorized by Pat Gensel, entered by Caroline Bernard on 14.11.2002, edited by Roy Plotnick

Creative Commons license: CC BY (attribution)

Taxonomic list

• also includes numerous arthropods: eurypterids, xiphosurids, aquatic scorpion, spider web. see Stormer 1970 to 1973.
unclassified
  -
Arachnida
 Trigonotarbida - Archaeomartidae
"Archaeomartus tuberculatus n. gen. n. sp." = Archaeomartus levis3
"Archaeomartus tuberculatus n. gen. n. sp." = Archaeomartus levis3 Størmer 1970
 Trigonotarbida - Aphantomartidae
Alkenia mirabilis n. gen. n. sp.3
Alkenia mirabilis n. gen. n. sp.3 Størmer 1970
 Opiliones - Archaeometidae
? Archaeometa devonica n. sp.2 harvestman
 Scorpiones - Proscorpiidae
Waeringoscorpio hefteri n. gen. n. sp.3
Waeringoscorpio hefteri n. gen. n. sp.3 Størmer 1970 scorpion
Xiphosura
 Xiphosurida -
Parahughmilleria major n. sp.4 eurypterid
Parahughmilleria hefteri n. sp.4 Stormer 1973 eurypterid
Alkenopterus brevitelson n. gen. n. sp.5 eurypterid
 Xiphosurida - Drepanopteridae
Drepanopterus struvei n. sp.5 eurypterid
 Xiphosurida - Carcinosomatidae
Carcinosoma sp.5 eurypterid
 Xiphosurida - Eurypteridae
? Eurypterus trapezoides n. sp.5 eurypterid
 Xiphosurida -
Moselopterus ancylotelson n. gen. n. sp.5, Moselopterus elongatus n. gen. n. sp.5, Thurandina waterstoni n. gen. n. sp.5, Heteroaspis novojilovi n. gen. n. sp.1
Moselopterus ancylotelson n. gen. n. sp.5 eurypterid
Moselopterus elongatus n. gen. n. sp.5 eurypterid
Thurandina waterstoni n. gen. n. sp.5 eurypterid
Heteroaspis novojilovi n. gen. n. sp.1
 Xiphosurida - Diploaspididae
Diploaspis casteri n. gen. n. sp.1
Diploaspis casteri n. gen. n. sp.1
  -
Myriapoda
 Arthropleurida - Arthropleuridae
Eoarthropleura devonica n. gen. n. sp.2
Eoarthropleura devonica n. gen. n. sp.2 millipede
Polychaeta
 Sabellida - Serpulidae
Spirorbis sp.2 Daudin 1800
Bivalvia
 Ostreida - Pterineidae
Pteraspidomorphi
 Heterostraci - Drepanaspidae
Drepanaspis sp.2 jawless fish
Coelacanthimorpha
 Coelacanthiformes -
Porolepis sp.2 coelacanth
Lophophorata
 Tentaculitida - Tentaculitidae
Tentaculites sp.2 von Schlotheim 1820
Psilophytopsida
  -
Dawsonites jabachensis
sporangia & sterile axes