Polyxenidae

Gilles San Martin from Namur, Belgium · CC BY-SA 2.0 · via Wikipedia/Commons. May be a photograph of a specimen, or an artist’s reconstruction — an interpretation of a skeleton, since colour and soft tissue are almost never preserved.

Sits inside

PolyxenoideaPBDB

Motility

actively mobilePBDB, for Arthropoda

• Early Cretaceous23%
• Late Cretaceous31%
• Eocene38%
• Miocene8%

These are dates about fossils, not the animal: the record can only begin after it arose and end before it died out, so either end may reach further. Shares are expected occurrences: a fossil dated to a span is counted partly in each period it straddles. More on what this infers.

Where Polyxenidae and its relatives were recorded in the Eocene. Draw the map

• Araneae3 sites
• Ablator triguttatus2 sites
• Adorator hispidus2 sites
• Aleyrodidae2 sites
• Allacrotelsa dubia2 sites
• Andrognathus burmiticus2 sites
• Anyphaena fuscata2 sites
• Archaea paradoxa2 sites
• Burmadictyna excavata2 sites
• Burmathele2 sites
• Burmesarchaea bilongapophyses2 sites
• Burmesarchaea pseudogibber2 sites
• Burmorsolus2 sites
• Caddo dentipalpus2 sites
• Cataglyphoides constricta2 sites
• Chironomidae2 sites
• Clubiona microphthalma2 sites
• Clubiona pubescens2 sites
• Clubiona tomentosa2 sites
• Clya lugubris2 sites
• Clya obscura2 sites
• Cretaenne kobeyssii2 sites
• Cronicus anomalus2 sites
• Cryptoplanus sericatus2 sites

The Paleobiology Database records 9 sites for Polyxenidae, and this reads all of them. The number is how many of those sites it was catalogued from too. The 24 sharing the most are listed.

• Footnotes and taxonomic names, in Die im Bernstein befindlichen Crustaceen, Myriapoden, Arachniden und Apteren der VorweltMenge, 1854 · Die in Bernstein Befindlichen Organischen Reste der Vorwelt Gesammelt in Verbindung mit Mehreren Bearbeitetet und Herausgegeben · book chapter3
• Two new species of the bristle millipede genus Pauropsxenus (Diplopoda, Polyxenidae) in mid-Cretaceous Burmese amberSu et al., 2020 · Cretaceous Research · journal article2
• Checklist of the Myriapoda in Cretaceous Burmese amber and a correction of the Myriapoda identified by Zhang (2017)Wesener and Moritz, 2018 · Check List · journal article2
• The oldest records of Polyxenida (Myriapoda, Diplopoda): new discoveries from the Cretaceous ambers of Lebanon and FranceNguyen Duy-Jacquemin and Azar, 2004 · Geodiversitas · journal article2
• Die im Bernstein befindlichen Crustaceen, Myriapoden, Arachniden und Apteren der VorweltKoch and Berendt, 1854 · Die in Bernstein Befindlichen Organischen Reste der Vorwelt Gesammelt in Verbindung mit Mehreren Bearbeitetet und Herausgegeben · book chapter2
• A new early Barremian fossiliferous amber outcrop at Beqaa Kafra (Northern Lebanon)Azar et al., 2025 · Palaeoworld · journal article1
• Record of pillbug (Armadillidium) and millipede (Polyxenus) remains from the resin lumps of Warkalli Formation (upper Tertiary), Kerala coastSrivastava et al., 2006 · Journal of the Geological Society of India · journal article1

Each of the 13 occurrences read was entered from one of these publications, ordered by how many each accounts for. This is not a search for papers mentioning the name. Entries link to doi.org where the Paleobiology Database holds an identifier, and to its own record where it does not. Relayed as the Paleobiology Database holds them, not checked against what they resolve to.

What may have been alongside itPolyxenoidea through timeFormations of the EoceneThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Lucas 1840