Joggins; Divison 4, Section XII, coal-group 26 (Carboniferous of Canada)

Also known as Coal Measures; Head of Bay of Fundy

Where: Nova Scotia, Canada (45.7° N, 64.5° W: paleocoordinates 8.0° S, 7.2° W)

• coordinate estimated from map

• outcrop-level geographic resolution

When: Joggins Formation (Cumberland Group), Westphalian A (318.7 - 316.9 Ma)

• Coal-group 26 has a total thickness of 118 ft (including a 4 inch coaly shale). (Dawson, 1878 p. 170). Currently, the Cumberland Group is considered eqivalent to Westphalian A (Langsettian) (see e. g. Holmes et al., 1989, J. Vert. Paleont. 19; or Falcon-Lang et al. 2006, J. Geol. Soc. Lond. 163).(TL)

• group of beds-level stratigraphic resolution

Environment/lithology: mire or swamp; gray sandstone and claystone

• "Gray sandstone and shale, with erect Sigillaria; at four or five levels, and two Stigmarian underclays" (Dawson, 1878 p. 170)

Size class: macrofossils

Preservation: coalified

Collected by J. W. Dawson, P. W. McNaughton, among others

Primary reference: R. L. Carroll. 1964. The earliest reptiles. Journal of the Linnean Society (Zoology) 45(304):61-83 [J. Mueller/T. Liebrecht]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 86946: authorized by Johannes Mueller, entered by Torsten Liebrecht on 25.02.2009, edited by Emma Dunne and Bethany Allen

Creative Commons license: CC BY (attribution)

Taxonomic list

• Dawson (1878, Acadian Geology, 3rd ed.) reports Stigmaria sp. from this site
 Tetrapoda -
Tetrapoda indet.4 Jaekel 1911 tetrapod
"Tetrapoda incertae sedis": RM 12059 (pterygoid and maxilla); NMC 10041b (femur), both were originally assigned to Archerpeton anthracos by Carroll (1964); RM 12099 (isolated premaxilla), originally stated to be "Reptilian" by Carroll (1964)
 Microsauria - Hapsidopareiidae
Ricnodon sp.2 Fritsch 1883 tetrapod
A number of badly disarticulated specimens possibly belonging to the genus Ricnodon but specifically indeterminate. RM 12077 (skull roof, dentary, vertebra, and ulna), RM 12062 (maxill, dentary, right half of pelvic girdle and femus), RM 12062a (right half of pelvic girdle), BM(NH) R.447 (maxilla, dentary, premaxilla, vertebrae, ribs, and pelvis)
 Microsauria -
Archerpeton anthracos n. gen. n. sp.
Archerpeton anthracos n. gen. n. sp. Carroll 1964 tetrapod
RM 12056 (partial skeleton; holotype), 12202 (isolated maxilla), 12206 (forelimb; paratype)
 Temnospondyli - Dendrerpetidae
Dendrerpeton confusum n. sp.3 Milner 1996 tetrapod
RM 2.1185/NHMUK R4554 (holotype) large skull in part and counterpart
 Baphetoidea - Baphetidae
Baphetes minor5 Dawson 1870 tetrapod
MCZ 1053 (Holotype: mandibular ramus)
 Eureptilia - Protorothyrididae
Hylonomus lyelli Dawson 1860 eureptile
NMC 10046 (vertebrae, pelvis, limb elements), 10048 (vertebral column, pelvis incl. hind limb and feet)
 Recumbirostra - Gymnarthridae
Leiocephalikon problematicum1 Dawson 1882 amniote
NMC 10045, upper and lower jaws
 Recumbirostra - Pantylidae
Trachystegos megalodon n. sp.2 Carroll 1966 amniote
BM(NH) R.4563 (holotype) skull roof, lower jaw, and poorly preserved postcranial remains; RM 12003 palatine tooth plate, vertebra, and humerus; RM 2.1184 humerus; RM 12081 humerus
 Synapsida -
Asaphestera intermedia n. sp.2 Dawson 1894 synapsid