Where: Wilcox County, Alabama (32.0° N, 87.3° W: paleocoordinates 34.5° N, 70.1° W)

When: Midway Group, Thanetian (59.2 - 56.0 Ma)

Environment/lithology: marine; lithology not reported

Size classes: macrofossils, mesofossils

• left palm, dactylus of right cheliped showing tubercles, smaller carapace and abdomen showing pleura, larger carapace and abdomen [holotype], right propodal finger, right palm with finger (H. johnsoni); a left chela with a piece of the carpus attached (N. midwayensis); eleven specimens of manus, of which one is holotype (O. cookei); a single right manus with the stump of a slender immovable finger (Oncopareia sp.); abdomen of which segments 2-6 are in place, though incomplete, and a portion of the tail fan, out of place (U. midwayensis); propodus of right cheliped, holotype, and broken palm and finger, showing characteristic excrescence at base of finger (C. alpha); distal portion of a left manus and its attached stump of a finger (C. beta); a right manus (U. gamma); right manus and piece of finger (C. delta); a left manus, proximal end incomplete, fingers lacking (C. epsilon); 20 specimens of manus, three of fingers (C. alabamensis); one left palm (C. ulrichi); about 20 fragments [Coll. No. 264], more numerous specimens [Coll. No. 284], and one abdomen [Coll. No. 281] (L. wilcoxensis); two specimens showing carapace [incomplete] and sternum (S. gibbera); specimen showing the hinder half of the carapace [behind the cervical suture] and the first segment of the abdomen (S. aspera); one right major propodus of chela, one left minor chela, right major palm and minor palm (P. johnsoni); two right chela, larger specimen incomplete (P. alabamensis); 32 carapaces (D. americana); dorsal view of carapace (M. americanus); carapaces, palm, portion of abdomen, ventral view showing sternum, carapace showing frontal teeth, and carpus of left cheliped (Q. ovalis); four specimens, three specimens, and a spine-bearing fragment (R. eocenica); 20 specimens (R. johnsoni); many specimens, including carapace, abdomen, claws, and fingers (P. alabamensis); one right palm (G. americana);

Collected by L.C. Johnson, (264, 284, 281) in 1883; reposited in the USNM

• four badly mutilated animals, the largest the type, also twelve hands, two with wrists attached, six fragments of fingers, Cat. Nos. 371517-371520 (H. johnsoni); a left chela with a piece of the carpus attached, holotype, Cat. No. 371741 (N. midwayensis); eleven specimens of manus, of which one is holotype, Cat. No. 371512 (O. cookei); an incomplete right manus, Cat. No. 371514 (Oncopareia sp.); segments 6-7 and segments 2-6 of abdomen, holotype, Cat. No. 371516 (U. midwayensis); eleven specimens, propodus of right cheliped, holotype, Cat. No. 371506 (C. alpha); left manus, holotype, Cat. No. 371507 (C. beta); right manus, holotype, Cat. No. 371508 (U. gamma); a right palm and basal half of fixed finger, holotype, Cat. No. 371509 (C. delta); left manus, lacking fingers, holotype, Cat. No. 371510 (C. epsilon); right chela, holotype, and dactylus of right cheliped, paratype, Cat. Nos. 371504, 371505 (C. alabamensis); one left palm, Cat. No. 371587 (C. ulrichi); fragment of abdomen, abdomen, carapace [holotype], fragment of carapace, Cat. Nos. 371498-371500 (L. wilcoxensis); two carapaces [one is holotype], Cat. No. 371502, and one palm, Cat. No. 371501 (S. gibbera); carapace behind cervical suture and first segment of abdomen, type, Cat. No. 371503 (S. aspera); major palm, holotype [Cat. No. 371705], and minor palm, paratype [Cat. No. 371706] (P. johnsoni); two right chela, larger specimen incomplete, type, Cat. No. 371703 (P. alabamensis); 32 carapaces, Cat. No. 371687 (D. americana); one specimen, dorsal view of carapace, Cat. No. 371695 (M. americanus); carapaces, portion of abdomen, ventral view of sternum, Cat. No. 371692 (Q. ovalis); a spine-bearing fragment, four specimens, including type [Cat. No. 371701], and three specimens [Cat. No. 371700] (R. eocenica); 20 specimens including ventral view of sternum, carapace with rostrum, and dorsal and ventral views of carapace and abdomen [Cat. No. 371691] (R. johnsoni); many specimens, Cat. Nos. 371690, 371694, 371707, and one carapace with right cheliped attached, holotype, Cat. No. 371708 (P. alabamensis); one right palm, type, Cat. No. 371743 (G. americana);

Primary reference: M. J. Rathbun. 1935. Fossil Crustacea of the Atlantic and Gulf Coastal Plain. Geological Society of America Special Paper (2)1-160 [C. Schweitzer/S. Yost]more details

Purpose of describing collection: paleoecologic analysis

PaleoDB collection 142748: authorized by Carrie Schweitzer, entered by Samantha Yost on 16.04.2013

Creative Commons license: CC BY (attribution)