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.
Psilophytopsida
  -
Dawsonites jabachensis
sporangia & sterile axes
Osteichthyes
 Dipnomorpha -
Porolepis sp.5 Woodward 1891 lobe-finned fish
Pteraspidomorpha
 Pteraspidiformes - Psammosteidae
 Pteraspidiformes - Rhinopteraspididae
Arachnida
 Trigonotarbida - Aphantomartidae
Alkenia mirabilis n. gen. n. sp.1
Alkenia mirabilis n. gen. n. sp.1 Størmer 1970
 Trigonotarbida - Archaeomartidae
"Archaeomartus tuberculatus n. gen. n. sp." = Archaeomartus levis1
"Archaeomartus tuberculatus n. gen. n. sp." = Archaeomartus levis1 Størmer 1970
 Opiliones - Archaeometidae
? Archaeometa devonica n. sp.5 harvestman
 Scorpiones - Proscorpiidae
Waeringoscorpio hefteri n. gen. n. sp.1
Waeringoscorpio hefteri n. gen. n. sp.1 Størmer 1970 scorpion
Euchelicerata
 Eurypterida - Rhenopteridae
 Eurypterida - Drepanopteridae
Drepanopterus struvei n. sp.4 Størmer 1974 eurypterid
 Eurypterida - Adelophthalmidae
"? Eurypterus trapezoides n. sp." = Adelophthalmus sievertsi4, Parahughmilleria major n. sp.3, Parahughmilleria hefteri n. sp.3
"? Eurypterus trapezoides n. sp." = Adelophthalmus sievertsi4 Poschmann 2006 eurypterid
Parahughmilleria major n. sp.3 eurypterid
Parahughmilleria hefteri n. sp.3 Stormer 1973 eurypterid
 Eurypterida - Pterygotidae
Jaekelopterus rhenaniae5 Jaekel 1914 eurypterid
 Eurypterida - Carcinosomatidae
Carcinosoma sp.4 Claypole 1890 eurypterid
 Eurypterida - Moselopteridae
Moselopterus elongatus n. gen. n. sp.4, Moselopterus ancylotelson n. gen. n. sp.4
Moselopterus elongatus n. gen. n. sp.4 Størmer 1974 eurypterid
Moselopterus ancylotelson n. gen. n. sp.4 Størmer 1974 eurypterid
 Eurypterida - Onychopterellidae
Alkenopterus brevitelson n. gen. n. sp.4
Alkenopterus brevitelson n. gen. n. sp.4 Størmer 1974 eurypterid
 Chasmataspidida - Diploaspididae
"Heteroaspis novojilovi n. gen. n. sp." = Heteroaspis stoermeri2, Diploaspis casteri n. gen. n. sp.2
"Heteroaspis novojilovi n. gen. n. sp." = Heteroaspis stoermeri2 Novojilov 1959
Diploaspis casteri n. gen. n. sp.2 Størmer 1972
Xiphosura
  -
 Euchelicerata -
Thurandina waterstoni n. gen. n. sp.4
Thurandina waterstoni n. gen. n. sp.4 Stoermer 1974
Myriapoda
 Arthropleurida - Arthropleuridae
Eoarthropleura devonica n. gen. n. sp.5
Eoarthropleura devonica n. gen. n. sp.5 millipede
Polychaeta
 Sabellida - Serpulidae
Spirorbis sp.5 Daudin 1800
Lophophorata
 Tentaculitida - Tentaculitidae
Tentaculites sp.5 von Schlotheim 1820
Bivalvia
 Ostreida - Pterineidae