Publications . Plate 10 All figures natural size Figure 1.—Trif/onid iiiczaiui. n. sp. Chieo Creek, Butte County, California,. Figure 2.—Trigonia newcomhei, n. sp. J\y]ie specimen. Upper Cretaceous,Haida formation of Skidcgate Inlet, Queen Charlotte Islands, B. C. Figure 3.— Trigonia , n. ?p. Type spccmen. Upper Cretaceous,Chico foimation of Crooked Eiver, Oregon. Figure 4.—Trigonia n( iri-anibci, u. sp. Figure 5.—Trigonia Hyatt. Leetotyi)e, l\ri<ldle Jurassic, Bicknellsandstone. Payl()rs^•ille, California. Figure (i.— Trigonia ncircdnthi i,

---

Publications . Plate 10 All figures natural size Figure 1.—Trif/onid iiiczaiui. n. sp. Chieo Creek, Butte County, California,. Figure 2.—Trigonia newcomhei, n. sp. J\y]ie specimen. Upper Cretaceous,Haida formation of Skidcgate Inlet, Queen Charlotte Islands, B. C. Figure 3.— Trigonia , n. ?p. Type spccmen. Upper Cretaceous,Chico foimation of Crooked Eiver, Oregon. Figure 4.—Trigonia n( iri-anibci, u. sp. Figure 5.—Trigonia Hyatt. Leetotyi)e, l\ri<ldle Jurassic, Bicknellsandstone. Payl()rs^•ille, California. Figure (i.— Trigonia ncircdnthi i, n. sj). Same Im-ality as that of figure 2. [ 56 ] Plate 10

---

Size: 1985px × 1259px
Photo credit: © The Reading Room / Alamy / Afripics
License: Licensed
Model Released: No

Keywords: ., bo, bookcentury1900, bookdecade1920, bookpublishernp, bookyear1921