- (part)
Toyonian Dyeran Botomian "Stage 3"
Nangaoan Atdabanian Montezuman Placentian /
Comley (part)
Terreneuvian "Stage 2"
Meishucunian Tommotian* Begadean...
-
Weymouth Formation Stratigraphic range:
Lower Cambrian (Upper
Placentian to
Lower Branchian)
Range Approximate 527–518 Ma PreꞒ Ꞓ O S D C P T J K Pg N Type...
- McIlroy,
Duncan (2000). "A
lower Cambrian protoconodont apparatus from the
Placentian of
southeastern Newfoundland". Lethaia. 33 (2): 95–102. doi:10.1080/00241160050150230...
- Paleontology. 51 (6): 1072–1084. JSTOR 1303822. Landing, Ed (1995). "Upper
Placentian—Branchian
series of
mainland Nova
Scotia (middle-upper
Lower Cambrian):...
- "Scenella and "A
Chondrophorine (Medusoid Hydrozoan) from the
Basal Cambrian (
Placentian) of Newfoundland"".
Journal of Paleontology. 66 (2): 338. Bibcode:1992JPal...
-
overlying beds. The
Playsolenites cooperi are only
otherwise known in the
Placentian of SE Newfoundland. P. J. Brenchley, P. F.
Rawson The
Geology of England...
-
Kansas Paleontological Contributions, 3: 1–35 Landing, E. (1995). "Upper
Placentian-Branchian
series of
mainland Nova
Scotia (middle-upper
Lower Cambrian)...
- Collections, 152 (No. 4), 1 - 111, 14 pls. LANDING, E. (1995). "Upper
Placentian-Branchian
series of
mainland Nova
Scotia (middle-upper
Lower Cambrian)...
- (3–4): 176–180. doi:10.1007/BF02989029. Landing, E. (May 1995). "Upper
Placentian-Branchian
Series of
Mainland Nova
Scotia (Middle-Upper
Lower Cambrian):...
