01821nas a2200217 4500008004100000022001400041245017200055210006900227260001500296300001200311490000700323520102100330653001801351653001501369653001201384653001301396653001901409100001701428700002001445856013801465 2017 eng d a0195-667100aSymphylella patrickmuelleri sp. nov. (Myriapoda: Symphyla): The oldest known Symphyla and first fossil record of Scolopendrellidae from Cretaceous Burmese amber0 aiSymphylella patrickmuellerii sp nov Myriapoda Symphyla The olde c22/12/2017 a258-2630 v843 a

Symphyla are one of the least known of the four classes of the Myriapoda. While Symphyla are dated to have split from the other myriapods at about 430–593 Ma, there are no fossil specimens known aside from seven specimens of the family Scutigerellidae preserved in Dominican and Baltic amber, with a maximum age of ca. 54 Ma. Here we describe the first fossil representative of the second Symphyla family, the Scolopendrellidae, Symphylella patrickmuelleri sp. nov., from Burmese amber (ca. 99 Ma). Utilizing micro-computed tomography (mCT) technology, as well as light microscopy and multi-layer photography, our specimen, despite being juvenile, can be assigned to the genus Symphylella Silvestri, 1902, a species-rich Recent genus that has an almost worldwide distribution. The specimen is preserved after ejecting long threads of silk from its large spinnerets. Our findings show that the recent genera and families of the Symphyla diverged already before the end of the Mesozoic

10aBurmese amber10aCretaceous10aCT scan10aMesozoic10asoil arthropod1 aMoritz, Leif1 aWesener, Thomas uhttps://myriatrix.myspecies.info/content/symphylella-patrickmuelleri-sp-nov-myriapoda-symphyla-oldest-known-symphyla-and-first-fossil