Falmouth Locality (Carboniferous to of the United States)

Also known as Newton Locality

Where: Jasper County, Illinois (39.0° N, 88.1° W: paleocoordinates 5.2° S, 22.8° W)

• coordinate stated in text

• outcrop-level geographic resolution

When: Mattoon Formation (McLeansboro Group), Stephanian to Stephanian (307.5 - 298.9 Ma)

• "Stratigraphically, the beds are not more than 20 feet above the Reisner Limestone"

•In the paper the McLeansboro Group is referred to as "McCleansboro Group".

• group of beds-level stratigraphic resolution

Environment/lithology: lacustrine deltaic; silty, sandy mixed carbonate-siliciclastic sediments

• "It appears [...] that the tetrapod remains are preserved in pond margin deposits of deltaic origin."
• "Most of the tetrapod remains are preserved in about two feet of cross-bedded siltstones, sandstones and shales which lie above a fresh water limestone, ranging in thickness from six inches to two feet or more, containing abundant remains of xenacanth sharks and lungfish. [...] the top six inches to one foot of the limestone was seen to grade into the clastic zone mentioned above."

Size class: macrofossils

Reposited in the FMNH

Collection methods: surface (in situ),

Primary reference: R. DeMar. 1970. A primitive pelycosaur from the Pennsylvanian of Illinois. Journal of Paleontology 44(1):154-163 [J. Mueller/T. Liebrecht/M. Carrano]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 81114: authorized by Johannes Mueller, entered by Jana Dummasch on 06.06.2008, edited by Emma Dunne

Creative Commons license: CC BY (attribution)

Taxonomic list

• The referred specimens "were found close to the holotype and no other large pelycosaur has been recovered from the deposit so it is concluded that these specimens are from the same species, and perhaps from the same individual as the holotype."
Show authors, comments, and common names
Osteichthyes
 Recumbirostra - Molgophidae
"Lysorophus sp." = Brachydectes
"Lysorophus sp." = Brachydectes Cope 1868 amniote
FMNH PR 992 (dorsal half of a lysorophoid vertebral centrum, fractured along a frontal plane. Designated Lysorophus sp. by DeMar (1980: 240)). See Wellstead, 1991, page 56 for details.
 Pelycosauria -
Milosaurus mccordi n. gen. n. sp.
Milosaurus mccordi n. gen. n. sp. DeMar 1970 pelycosaur
FMNH 701 (type), 702-705