UCMP B-7046, Palo Blanco mine (Miocene of Mexico)

Also known as Chiapas amber, Mexican amber

Where: Chiapas, Mexico (17.3° N, 92.9° W: paleocoordinates 17.9° N, 89.2° 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

• Specimens in UC Museum of Paleontlogy, Berkeley

Primary reference: K. Christiansen. 1971. Notes on Miocene amber Collembola from Chiapas. University of California Publications in Entomology 63:45-48 [M. Clapham/M. Clapham]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 140215: authorized by Matthew Clapham, entered by Matthew Clapham on 05.03.2013

Creative Commons license: CC BY (attribution)

Taxonomic list

Insecta
 Hymenoptera - Mymaridae
Anaphes sp.1 Haliday 1833 fairyfly
UCMP 12640
 Diptera - Ceratopogonidae
Forcipomyia sp.4 Meigen 1818 biting midge
B-7046-36
 Diptera - Phoridae
Metopina sp.3 Macquart 1835 scuttle fly
B-7046-32
 Diptera - Keroplatidae
"Ceroplatinae indet." = Keroplatidae2
"Ceroplatinae indet." = Keroplatidae2 Rondani 1856 predatory fungus gnat
B-7046-24 ("Platyura or Orfelia")
 Diptera - Mycetophilidae
Leiini indet.2 Edwards 1925 fungus gnat
B-7046-25 ("possibly Tetragoneura")
 Diptera - Sciaridae
Bradysia sp.2 Winnertz 1867 dark-winged fungus gnat
B-7046-23
Collembola
 Entomobryomorpha - Entomobryidae
Entomobrya sp. Rondani 1861 springtail
UCMP 13551, 13552