Abstract
Three specimens of chitinous hydroids recovered from the Børglum River Formation (Middle-Late Ordovician) of central Peary Land, eastern North Greenland, are briefly described and illustrated by scanning e1ectron microscopy. In two specimens the entrance to the theca is greatly reduced by a well developed diaphragm which is absent in the third specimen.
Highlights
Three specimens of chitinous hydroids recovered from the Børglum River Formation (Middle-Late Ordovician) of central Peary Land, eastern North Greenland, are briefly described and illustrated by scanning e1ectron microscopy
During investigation of acid resistant residues from several Lower Palaeozoic limestones from North Greenland, a small number offragmentary remains of chitinous hydroids were revealed in a single sample
Taxonomic assignment of the described specimens is difficult. It has aIready been stressed by Kozlowski (1959, p. 212) that it is too early to refer fossil species to specific families defined on the basis of recent species, because of insufficient knowledge about fossil hydroids through time
Summary
Three specimens of chitinous hydroids recovered from the Børglum River Formation (Middle-Late Ordovician) of central Peary Land, eastern North Greenland, are briefly described and illustrated by scanning e1ectron microscopy. During investigation of acid resistant residues from several Lower Palaeozoic limestones from North Greenland, a small number offragmentary remains of chitinous hydroids were revealed in a single sample. The sample (GGU 184155) is a grey, fine grained, sparsely fossiliferous limestone from the top of the Børglum River Formation of Middle-Late Ordovician age. It was collected in 1974 by J.S. Peel (GGU) and R.L. Christie (Geological Survey ofCanada) in the Børglum Elv region of central Peary Land, eastern North Greenland, (Christie & Peel, 1977, section G, unit 12). In addition to hydroids the acid residue contained a fauna including chitinozoa and scolecodonts
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
