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WikiProject Palaeontology.

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philosophy.

This user has a keen interest in physics.

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Article contributions

Article creation

• Bungartius
• Jaekelocarpus
• Protocinctus
• Grossaspis
• Amygdalotheca
• Acuticarpus
• Allapasus
• Chiridotidae
  • Taeniogyrus
  • Ovalidota
  • Kolostoneura
• Temnocephala
• Anonymoidea
  • Chromoplana
  • Anonymus (flatworm)
  • Marcusia
  • Simpliciplana
• Galeaspida
  • Platylomaspis
  • Duyunolepis
• Prostheceraeus
• Xenocarcinus

Article creation from redirects

• Enchiridium
• Stylostomidae
  • Euryleptodes
  • Stylostomum
• Cycloporus

Significant article rehauls

• Pleurobranchida

Image contributions

Maps

Occurrences of Lybia reported to GBIF as of April 2025, made in R

Collages

A composite image showcasing members of the 8 holothuroid orders accepted by WoRMS

Philogenies

Gai et al., 2018

Analysis of the positition of Platylomaspis within Galeaspida and relationships within the group. Strict consensus of 3 maximum parsimony trees:

Agnatha

Ateleaspis Galeaspida Changxingaspis Hanyangaspis Dayongaspis Eugaleaspiformes ⊞ ⊟ Shuyu zhejiangaspis 'Sinogaleaspidae' Anjiaspis Meishanaspis 'Shuyu' xikengensis Shuyu shankouensis Eugaleaspidae Yunnanogaleaspis Nochelaspis Eugaleaspis Pterogonaspis Polybranchiaspidida Geraspididae Geraspis Kwangnanaspis Polybranchiaspiformes ⊞ ⊟ Gumuaspidae Gumuaspis Platylomaspis Nanningaspis Pentathyraspidae Microhoplonaspis Pentathyraspis Duyunolepidae Duyunolepis Lopadaspis Polybranchiaspidae Bannhuanaspis Dongfangaspis Polybranchiaspis Damaspis Laxaspis Zhaotongaspididae Wenshanaspis Zhaotongaspis Huananaspiformes ⊞ ⊟ Sanchaspidae Antiquisagittaspis Sanchaspis Gantarostrataspidae Gantarostrataspis Wumengshanaspis Sanqiaspidae Sanqiaspis Huananaspidae Asiaspis Nanpanaspis Stephaspis Huananaspis Macrothyraspinae Lungmenshanaspis Qingmenaspis Macrothyraspis Sinoszechuanaspis

Moles et al., 2023

Phylogeny of Pleurobranchida. Maximum likelihood analysis rooted in Acteonoidea:

Heterobranchia

Acteonoidea ⊞ ⊟ Micromelo Pupa Nudipleura Nudibranchia ⊞ ⊟ Bathydoridoidei Prodoris Bathydoris Carminodoris Felimida Armina Tritonia Curnon Heterodoris Doridomorpha Doridoxa Pleurobranchida Tomthompsoniidae Tomthompsonia Pleurobranchoidea Pleurobranchaeidae Euselenops Pleurobranchella Pleurobranchaea Pleurobranchidae Berthellina Bathyberthella Berthella Tomoberthella Pleurehdera Boreoberthella Pleurobranchus

Short & Vahtera, 2017

Results of phylogenetic analyses on Polyxenida.

Results of phylogenetic analyses from Short & Vahtera (2017)

Optimal maximum likelihood tree on molecular data
Polyxenida Synxenidae Polyxeninae (Polyxenidae) Macroxeninae (Polyxenidae) Lophoproctus Lophoproctidae Alloproctoides + Lophoturus Monographinae (Polyxenidae)
COI, 18S rRNA and 16S rRNA fragments amplified

Strict consensus of most parsimonious trees on combined morphological and molecular data
Polyxenida remaining Propolyxenus species Polyxeninae (Polyxenidae) Polyxenus + Propolyxenus trivittatus Macroxeninae (Polyxenidae) Lophoproctidae Eudigraphis Monographinae (Polyxenidae) Monographis + Unixenus Synxenidae
Consensus of 626 trees

To do list

• Article expansion/improvement:
  • Arthropleura

• Article creation:
  • Extensive list of "homalozoans"
  • Extensive list of galeaspids