كتب ذات صلة

The ventriculidae of the chalk: their microscopic structure, affinities and classification.

A Middle Devonian octactinellid sponge from New York

A memoir on the Palaeozoic reticulate sponges constituting the family Dictyospongidae

Fossil sponge spicules from the upper chalk found in the interior of a single flint-stone from Horstead in Norfolk

• Upper Devonian Receptaculites chardini n. sp. from central Afghanistan
  المؤلفون: Nitecki, Matthew H. ,  Lapparent, Albert F. de
• Type Graptolithina in Field Museum of Natural History
  المؤلفون: Nitecki, Matthew H. ,  Hansman, Robert H.
• Type fossil Miscellanea (worms, problematica, conoidal shells, trace fossils) in Field Museum
  المؤلفون: Nitecki, Matthew H. ,  Forney, Gerald Glenn.

• Pennsylvanian invertebrates of the Mazon Creek area, Illinois : Eurypterida
  المؤلفون: Kjellesvig-Waering, Erik N.
• Pennsylvanian invertebrates of the Mazon Creek area, Illinois. Trilobitomorpha arthropleurida
  المؤلفون: Richardson, Eugene Stanley
• Pennsylvanian invertebrates of the Mazon Creek area, Illinois
  المؤلفون: Richardson, Eugene Stanley