Hill River, grid reference 191523 (Jurassic of Australia)

Where: Western Australia, Australia (30.3° S, 115.2° E: paleocoordinates 39.3° S, 56.2° E)

• coordinate estimated from map

• outcrop-level geographic resolution

When: Cattamarra Coal Measures Formation, Toarcian (182.7 - 174.1 Ma)

• group of beds-level stratigraphic resolution

Environment/lithology: interdistributary bay; lithified siltstone

• The hypothesized conditions fit well with the overall interpretation of the Cattamarra Coal Measures as a delta-plain deposit, with fine-grained sediments (such as at Mintaja) representing deposition in interdistributary bay environments (Mory, 1994).

Size class: macrofossils

Collected by West Australian Petroleum Pty. Ltd in 1956

Primary reference: E. F. Riek. 1968. On the occurrence of fossil insects in the Mesozoic rocks of Western Australia. Records of the Australian Museum 27:311-312 [M. Clapham/M. Clapham]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 140828: authorized by Matthew Clapham, entered by Matthew Clapham on 18.03.2013

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
Insecta
 Blattodea - Mesoblattinidae
Mesoblattinidae indet.
Mesoblattinidae indet. Handlirsch 1906 cockroach
F.52316 (possibly Austroblattula)
 Dicondylia -
Coleoptera "pronotum sp. 1"
Coleoptera "pronotum sp. 1" Linnaeus 1758 beetle
pronotum F.52313 identified as Mesothoris westraliensis by Riek
 Coleoptera -
"Mesothoris westraliensis n. sp." = Zygadenia westraliensis
"Mesothoris westraliensis n. sp." = Zygadenia westraliensis Riek 1968 beetle
elytron F.52315