CAPE COD GEOLOGY 



153 



U. S. G. S. Coll. 1,639. Highland Bluff 

 U. S. G. S. Coll. 9,570. Cape Higgon 



The other facies is medium coarse, red micaceous ferruginous sandstone, 

 containing small quartz pebbles. The specimens were collected at the following 

 places : 



U. S. G. S. Coll. 9,573. Chilmark 



U. S. G. S. Coll. 9,569. Indian Hill, near the site of an old schoolhouse 



U. S. G. S. Coll. 7,568. Gay Head cliffs 



If the fossiliferous ironstones were all collected from the same formation 

 the fauna as a whole includes the following forms. 



List of Cretaceous invertebrate fossils from Marthas Vineyard in the collections 

 of the U. S. National Museum and the U. S. Geological Survey 



Gervillia? (Probably the unnamed species figured by Shaler as Plate 2, fig. 1.) 



Gervilliopsis? 



Ostrea sp. (A small Gryphaea-like form, probably the same as Shaler's Plate 2, fig. 16.) 



Exogyra ponderosa Roemer? (Small and medium-sized specimens of a smooth form.) 



Peden cf. P. argillensis Conrad. (Costae broader and coarser than those of P. belliculptus 

 (Conrad.) Same as Shaler's Plate 2, figs. 8 and 9. 



Plicatula sp. (Same as Shaler's Plate 2, figs. 2 and 2a, probably undescribed.) 



Anomia argentaria Morton? (Probably Shaler's Plate 2, figs. 6 and 13.) 



Paranomia scabra (Morton) 



Modiolus sp. (Sculpture and form well preserved; probably undescribed; same as Shaler's 

 Plate 2, figs. 17 and 18.) 



Crassatellites? 



Cardium sp. 



Corbula cf. C. carolinensis Conrad. 



Corbula sp. 



A small unidentified gastropod. (Probably Shaler's Plate 2, fig. 10.) 



Shaler's illustrations 1 indicate the following forms in addition to those 

 listed above: Pteria (fig. 5); Lucina (fig. 11); Cerithiuml (fig. 12); and Turritella 

 (figs. 7, 14). 



Subsequent to 1889 a collection of Cretaceous fossils from Marthas Vine- 

 yard, evidently obtained from the same source as the fossils listed above, was 

 submitted to Dr. T. W. Stanton, who prepared the following unpublished 

 report, the original copy of which he has kindly placed at my disposal: 



The fossils from Marthas Vineyard sent by Prof. Battey for examination are mostly 

 imperfect casts and obscure impressions that cannot be determined. Numbers 1-3, 17,31-33 

 and 35-37 are of this nature. Most of the forms have been figured, without specific names, 



1 Shaler, N. S., Bull. Mus. Comp. Zool., Harvard Univ., Geol. ser. 2, 16, pp. 89-97, pi. 1 (map); 

 pi. 2 (fossils), 1889. 



