Evieux Formation
Geologic formation in Belgium
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The Evieux Formation, formerly included within the "Bois-de-Mouches Formation" and containing the Strud locality, is a late Devonian formation from Belgium. It preserves a wide range of fossils, including some of the earliest branchiopod crustaceans, various fish, and the putative insect Strudiella.[1]
UnderliesDolhain Formation/Comblain-au-Pont Formation[1]
OverliesMonfort Formation/Citadelle de Huy Formation[1]
RegionNamur Province
| Evieux Formation | |
|---|---|
| Stratigraphic range: Famennian | |
| Type | Geological formation |
| Underlies | Dolhain Formation/Comblain-au-Pont Formation[1] |
| Overlies | Monfort Formation/Citadelle de Huy Formation[1] |
| Location | |
| Region | Namur Province |
| Country | Belgium |
Paleobiota
| Color key | |||||||
|---|---|---|---|---|---|---|---|
| Taxon | Reclassified taxon | Taxon falsely reported as present | Dubious taxon or junior synonym | Ichnotaxon | Ootaxon | Morphotaxon | |
Notes
Uncertain or tentative taxa are in small text; crossed out taxa are discredited.
| Paleobiota | |||||
|---|---|---|---|---|---|
| Genus | Species | Higher taxon | Notes | Images | |
| Strudiella | S. devonica | Mandibulata | Debated whether it is an insect or a non-insect crustacean.[2][3] |  | |
| Strudops | S. goldenbergi | Notostraca | The earliest notostracan known[4][5] |  | |
| Haltinnaias | H. serrata | Anostraca | The earliest fairy shrimp known[5] | ||
| Gesvesia | G. pernegrei | Spinicaudata | One of the few diplostracan fossils with preserved internal anatomy[5] | ||
| Tealliocaris | T. walloniensis | Pygocephalomorpha | The earliest freshwater decapod known[6] |  | |
| Schramidontus | S. labasensis | Angustidontida | One of only two angustidontids, alongside the type genus Angustidontus.[7] |  | |
| Nervicaris | N. belgica[8] | Echinocarididae (Phyllocarida) | |||
| Hardieopteridae indet. | Unapplicable | Kokomopteroidea | Several juvenile specimens, not assignable to any genus[9] | ||
| Ericixerxes | E. pottii | Euthycarcinoidea | Likely breathed air as evidenced by unusual circular structures in the fossil's abdomen[10] | ||
| Microconchus | M. helicteres | Microconchida | Lived in lagoonal ponds[11] |  | |
| Grossilepis | G. rikiki | Bothriolepididae | Also known from a locality near Moresnet[12] | ||
| Turrisaspis | T. strudensis | Groenlandaspididae | Small size of specimens shows Strud was likely a placoderm "nursery"[13] |  | |
| Groenlandaspis | G. potyi[14] | Groenlandaspididae | One of the few known Paleozoic genera with preserved colour |  | |
| Phyllolepis | P. undulata | Phyllolepididae | Synonymised with several other species[15] |  | |
| Remigolepis | R. ?durnalensis | Antiarchi | Known from the Becco locality, as opposed to Strud[14] |  | |
| Diplacanthidae indet. | Unapplicable | Acanthodii | Known from two large spines[14] | ||
| Holoptychius[1] | H. flemingi | Porolepiformes |  | ||
| Soederberghia | S. sp[14] | Dipnoi | A relatively widespread lungfish[16] | ||
| Jarvikia? | ?J. sp[16] | Dipnoi | |||
| Langlieria | L. socqueti[17] | Tristichopteridae | Also known from the Catskill Formation |  | |
| Eusthenodon | E. wangsjoi[18] | Tristichopteridae | Known from all over the world |  | |
| Stegocephalia indet. | Unapplicable | Elpistostegalia | Fragmentary remains, with Ichthyostega-like jawbones and a whatcheeriid-like postorbital bone[19] | ||
| Moresnetia | M. zalesskyi[14] | Spermatophyta | One of the earliest seed plants[20] | ||
| Dorinnotheca | D. streelii | Lyginopteridales | One of the earliest known seed plants[21] | ||
| Condrusia | C. rumex | Spermatophyta[14] | Gained a lectotype in 2006[22] |  | |
| Thorezia | T. verezensis[23] | Spermatophyta | |||
| Archaeopteris | A. roemeriana[24] | Progymnospermopsida | One of the most widespread Devonian trees |  | |
| Barinophyton | B. citrulliforme[25] | Barinophytes | Known from various other localities |  | |
| Aneurophyton | A. olnense[25] | Aneurophytales | Basal progymnosperm |  | |
| Rhacophyton | R. condrusorum | Rhacophytales | One of the most abundant plants at Evieux[25] |  | |
| Eviostachya | E. sp[25] | Sphenophyllales | |||
| Sphenophyllum | S. subtenerrimum[25] | Sphenophyllales | |||
| Barsostrobus | B. famennensis[25][26] | Lycophyta | |||