Sklerolibyon

{{Short description|Extinct genus of megacheiran}}

{{Speciesbox

| fossil_range = {{fossilrange|Cambrian Stage 3}}

| image = Sklerolibyon_fossil.png

| image_upright = 1.3

| image_caption = Holotype specimen

| image2 = Sklerolibyon reconstruction.png

| image2_caption = Diagrammatic reconstruction

| genus = Sklerolibyon

| parent_authority = Aria et al., 2020

| species = maomima

| authority = Aria et al., 2020

}}

File:Artistic reconstructions of Fortiforceps foliosa and Sklerolibyon maomima gen. et sp. nov. in early Cambrian Gondwanian seas.png (left) ]]

Sklerolibyon is an extinct genus of megacheiran marine arthropod, known from the Cambrian aged Chengjiang biota of Yunnan, China. It is a member of the family Jianfengiidae, alongside Jianfengia and Fortiforceps, and possibly also Parapeytoia. Specimens are around {{Convert|2.5|cm|in}} in length. The body is greatly elongated, and head shield is heavily sclerotised, with a pair of spines radiating outward from the sides. Alongside the pair of great appendages, there are a pair of stalked eyes and at least two other pairs of limbs on the cephalon. The trunk has 34 segments with corresponding biramous appendages, with typically megacheiran paddle-shaped exopods. The tail is unknown but like Jianfengia probably ended in a telson spine.{{Cite journal |last1=Aria |first1=Cédric |last2=Zhao |first2=Fangchen |last3=Zeng |first3=Han |last4=Guo |first4=Jin |last5=Zhu |first5=Maoyan |date=December 2020 |title=Fossils from South China redefine the ancestral euarthropod body plan |journal=BMC Evolutionary Biology |language=en |volume=20 |issue=1 |pages=4 |doi=10.1186/s12862-019-1560-7 |issn=1471-2148 |pmc=6950928 |pmid=31914921 |doi-access=free |bibcode=2020BMCEE..20....4A }}