410 PROF. NORDENSKIOLD, EXPEDITION TO GREENLAND. 



mixture of sand and clay, and flat or ring-shaped claystones, con- 

 taining remains of Fish, Ophiurae, Crustacea, etc., were found 

 there in great numbers, for the sea is constantly washing away 

 a clay bank, 60 feet high, and fossils and claystones are left on the 

 shore. The fossils in the clay itself are but few ; but the clay- 

 stones form a separate layer, in which they lie close together. 

 Similar fossils, together with a few Gasteropods were collected by 

 Dr. Oberg at the foot of a clay-bank, South Leerbugt, near 

 Claushavn. 



The fossils at Pattorfik were large and with thicker shells. 

 They are found at a height of from 10 to 100 feet above the sea- 

 level, imbedded in greyish-green basaltic sand, in part hardened 

 into a kind of basalt-tuff. This is especially the case in the neigh- 

 bourhood of Shells, and accordingly they were most easily dis- 

 covered by breaking up the hard round nodules that are imbedded 

 in the rest of the mass. These nodules are often so hard and 

 tough, that they cannot be broken with an ordinary hammer. 

 Besides these this '^ basalt- tuff " contains large rolled blocks of 

 stone, indicating that at the time of the formation of these layers 

 a glacial period prevailed in the region. 



The fossils* brought home by us from these parts have been 

 examined by Professor S. Loven, who gives the following list of 

 them. 



SiJBFOSSiL Species of Animals collected in Greenland during 

 the Expedition of 1870. 





Pattorfik. 



Sarpiursak. 



Leerbugt. 



Tessiur- 

 sarsoak. 



Mya truncata, L. - 



+ 



+ 



+ 





Mya arenaria, L. - 



+ 



+ 



+ 





f Cyrtodaria siliqua, Spgl. 



+ 





+ 





Saxicava arctica, L. - 



+ 



— 



+ 



+ 



f S'. Norvegica, Spgl. - 



+ 









Lyonsia arenosa, Moll. 



— 



+ 







Tellina sabulosa, Spgl. 



+ 



+ ' 



+ 





T. tenera. Leach 



+ 



+ 







Astarte corrugata, Br. - 



+ 



+ 







A. elliptica, Br. 



+ 



— 



+ 





A. striata, Leach 



_ 



+ 







Cardium Islandicum, Chem. - 



+ 



+ 



+ 





C Grcenlandicum, Chem. 



+ 



+ 



+ 





Leda pernula, M. - 



+ 



+ 







Yoldia truncata, Br. 



. — 



+ 



H- 





Y. Jiyperhorea, l/oven. - 



— 



+ 



+ 





Mytilus edulis, L. - 



+ 









Pecten Islandicus, L. - 



+ 









Tritonium undulatum, Moll. 



_ 



_ 



+ 





T. Grcenlandicum, Chem. 



_ 



— 



+ 





T. hydrophanum, Hancock 



+ 



+ 







Natica clausa, Sow. - 



_ 



+ 







Idothea Sabinei, Kroyer 



- 



+ 







All are species still living in the Arctic Seas. Those marked with f are called 

 " fossil " by Dr. Rink ; perhaps not found living in the Greenland waters. 



* Krantz in his work speaks of fossil shells at Godthaab, which are nowhere 

 else found in these parts. 



