UCMP B-7454, Simojovel area (Miocene of Mexico)

Also known as Chiapas amber, Mexican amber

Where: Chiapas, Mexico (17.1° N, 92.7° W: paleocoordinates 17.7° N, 89.0° W)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Early/Lower Miocene (23.0 - 16.0 Ma)

Environment/lithology: terrestrial; amber

Size class: mesofossils

Preservation: soft parts, original chitin, amber

Reposited in the UCMP

Primary reference: A. Petrunkevitch. 1963. Chiapas amber spiders. University of California Publications in Entomology 31:1-40 [C. Labandeira/C. Labandeira/M. Clapham]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 140312: authorized by Matthew Clapham, entered by Matthew Clapham on 07.03.2013

Creative Commons license: CC BY (attribution)

Taxonomic list

Insecta
 Diptera - Dolichopodidae
Medetera amissa n. sp.1 Bickel 2016 long-legged fly
UCMP 12961
 Diptera - Mycetophilidae
Leiini indet.3 Edwards 1925 fungus gnat
UCMP 12960
 Diptera - Cecidomyiidae
? Henria sp.2 Wyatt 1959 gall midge
UCMP 12959
Arachnida
 Araneae - Clubionidae
Chiapasona defuncta n. gen. n. sp.
Chiapasona defuncta n. gen. n. sp. Petrunkevitch 1963 sac spider
UCMP 12804