Project 780: J. C. Lamsdell, P. A. Selden. 2013. Babes in the wood – a unique window into sea scorpion ontogeny. BMC Evolutionary Biology. 13 (98):1-46.
Abstract
Background:Few studies on eurypterids have taken into account morphological changes that occur throughout postembryonic development. Here two species of eurypterid are described from the Pragian Beartooth Butte Formation of Cottonwood Canyon in Wyoming and included in a phylogenetic analysis. Both species comprise individuals from a number of instars, and this allows for changes that occur throughout their ontogeny to be documented, and how ontogenetically variable characters can influence phylogenetic analysis to be tested.Results:
The two species of eurypterid are described as Jaekelopterus howelli
(Kjellesvig-Waering and Størmer, 1952) and Strobilopterus proteus sp. nov. Phylogenetic analysis places them within the Pterygotidae and Strobilopteridae respectively, both families within the Eurypterina. Jaekelopterus howelli shows positive allometry of the cheliceral denticles throughout ontogeny, while a number of characteristics including prosomal appendage length, carapace shape, lateral eye position, and relative breadth all vary during the growth of Strobilopterus proteus.Conclusions:
The ontogeny of Strobilopterus proteus shares much in common with that of modern xiphosurans,however certain characteristics including apparent true direct development suggest a closer affinity to arachnids. The ontogenetic development of the genital appendage also supports the hypothesis that the structure is homologous to the endopods of the trunk limbs of other arthropods. Including earlier instars in the phylogenetic analysis is shown to destabilise the retrieved topology. Therefore, coding juveniles as individual taxa in an analysis is shown to be actively detrimental and alternative ways of coding ontogenetic data into phylogenetic analyses should be explored.
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Project DOI: 10.7934/P780, http://dx.doi.org/10.7934/P780
This project contains | Matrices |
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Download Project SDD File | Total scored cells: 9882 Total media associated with cells: 0 Total labels associated with cell media: 0 |
Characters | |
Total characters: 208 Total characters with associated media: 0 Total characters with media with labels: 0 Total character states: 318 Total character states with associated media: 0 Total character states with media with labels:0 Total unordered/ordered characters:208/0 |
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MorphoBank Project 780
MorphoBank Project 780
- Creation Date:
08 August 2012 - Publication Date:
07 June 2013 - Project views: 38922
- Matrix downloads: 7
Authors' Institutions
- University of Kansas
Members
member name | taxa | specimens | media | chars | character
| cell scorings (scored, NPA, "-") | cell
| rules | ||||||
James Lamsdell Project Administrator | 72 | 1 | 1 | 208 | 0 | 0 | 9882 (9287, 0, 595) | 0 | 0 | 0 |
Taxonomic Overview for Matrix 'M1783' (63 Taxa)
taxon | unscored cells |
scored cells |
no cell support |
NPA cells |
"-" cells | cell images | labels on cell images |
member access |
[1] Weinbergina opitzi Last Modified in 12/05/13 | 1 | 82 | 82 | 0 | 21 | 0 | 0 | 1 |
[2] Chasmataspis laurencii Last Modified in 12/05/13 | 34 | 58 | 58 | 0 | 12 | 0 | 0 | 1 |
[3] Octoberaspis ushakovi Last Modified in 12/05/13 | 23 | 72 | 72 | 0 | 9 | 0 | 0 | 1 |
[4] Diploaspis casteri Last Modified in 12/05/13 | 31 | 66 | 66 | 0 | 7 | 0 | 0 | 1 |
[5] Loganamaraspis dunlopi Last Modified in 12/05/13 | 36 | 59 | 59 | 0 | 9 | 0 | 0 | 1 |
[6] Brachyopterus stubblefieldi Last Modified in 12/05/13 | 24 | 71 | 71 | 0 | 9 | 0 | 0 | 1 |
[7] Rhenopterus diensti Last Modified in 12/05/13 | 2 | 93 | 93 | 0 | 9 | 0 | 0 | 1 |
[8] Parastylonurus ornatus Last Modified in 12/05/13 | 1 | 95 | 95 | 0 | 8 | 0 | 0 | 1 |
[9] Laurieipterus elegans Last Modified in 12/05/13 | 43 | 56 | 56 | 0 | 5 | 0 | 0 | 1 |
[10] Kokomopterus longicaudatus Last Modified in 12/05/13 | 19 | 79 | 79 | 0 | 6 | 0 | 0 | 1 |
[11] Hardieopteurs macrophthalmus Last Modified in 12/05/13 | 18 | 78 | 78 | 0 | 8 | 0 | 0 | 1 |
[12] Drepanopterus pentlandicus Last Modified in 12/05/13 | 2 | 96 | 95 | 0 | 7 | 0 | 0 | 1 |
[13] Hibbertopterus scouleri Last Modified in 12/05/13 | 18 | 80 | 79 | 0 | 7 | 0 | 0 | 1 |
[14] Megarachne servinei Last Modified in 12/05/13 | 73 | 30 | 29 | 0 | 2 | 0 | 0 | 1 |
[15] Stoermeropterus conicus Last Modified in 12/05/13 | 0 | 100 | 99 | 0 | 5 | 0 | 0 | 1 |
[16] Stoermeropterus latus Last Modified in 12/05/13 | 19 | 80 | 80 | 0 | 5 | 0 | 0 | 1 |
[17] Stoermeropterus nodosus Last Modified in 12/05/13 | 46 | 56 | 56 | 0 | 2 | 0 | 0 | 1 |
[18] Vinetopterus struvei Last Modified in 12/05/13 | 6 | 93 | 93 | 0 | 5 | 0 | 0 | 1 |
[19] Vinetopterus martini Last Modified in 12/05/13 | 29 | 72 | 72 | 0 | 3 | 0 | 0 | 1 |
[20] Moselopterus ancylotelson Last Modified in 12/05/13 | 1 | 98 | 98 | 0 | 5 | 0 | 0 | 1 |
[21] Moselopterus elongatus Last Modified in 12/05/13 | 7 | 92 | 92 | 0 | 5 | 0 | 0 | 1 |
[22] Onychopterella augusti Last Modified in 12/05/13 | 26 | 74 | 74 | 0 | 4 | 0 | 0 | 1 |
[23] Onychopterella kokomoensis Last Modified in 12/05/13 | 6 | 92 | 92 | 0 | 6 | 0 | 0 | 1 |
[24] Dolichopterus macrocheirus Last Modified in 12/05/13 | 1 | 99 | 99 | 0 | 4 | 0 | 0 | 1 |
[25] Eurypterus remipes Last Modified in 12/05/13 | 0 | 100 | 100 | 0 | 4 | 0 | 0 | 1 |
[26] Hughmilleria socialis Last Modified in 12/05/13 | 2 | 96 | 96 | 0 | 6 | 0 | 0 | 1 |
[27] Tylopterella boylei Last Modified in 12/05/13 | 61 | 41 | 41 | 0 | 2 | 0 | 0 | 1 |
[28] Megalograptus ohioensis Last Modified in 12/05/13 | 0 | 95 | 95 | 0 | 9 | 0 | 0 | 1 |
[29] Mixopterus kiaeri Last Modified in 12/05/13 | 4 | 95 | 95 | 0 | 5 | 0 | 0 | 1 |
[30] Strobilopterus laticeps Last Modified in 12/05/13 | 52 | 50 | 50 | 0 | 2 | 0 | 0 | 1 |
[31] Strobilopterus princetonii Last Modified in 12/05/13 | 19 | 83 | 83 | 0 | 2 | 0 | 0 | 1 |
[32] Strobilopterus proteus Last Modified in 12/05/13 | 17 | 87 | 87 | 0 | 0 | 0 | 0 | 1 |
[33] Buffalopterus pustulosus Last Modified in 12/05/13 | 45 | 57 | 57 | 0 | 2 | 0 | 0 | 1 |
[34] Strobilopterus richardsoni Last Modified in 12/05/13 | 66 | 37 | 37 | 0 | 1 | 0 | 0 | 1 |
[35] Erieopterus microphthalmus Last Modified in 12/05/13 | 2 | 98 | 98 | 0 | 4 | 0 | 0 | 1 |
[36] Paraeurypterus anatoliensis Last Modified in 12/05/13 | 62 | 42 | 42 | 0 | 0 | 0 | 0 | 1 |
[37] Pentlandopterus minor Last Modified in 12/05/13 | 55 | 48 | 48 | 0 | 1 | 0 | 0 | 1 |
[38] Dolichopterus jewetti Last Modified in 12/05/13 | 5 | 95 | 95 | 0 | 4 | 0 | 0 | 1 |
[39] Ruedemannipterus stylonuroides Last Modified in 12/05/13 | 60 | 43 | 43 | 0 | 1 | 0 | 0 | 1 |
[40] Clarkeipterus testudineus Last Modified in 12/05/13 | 68 | 35 | 35 | 0 | 1 | 0 | 0 | 1 |
[41] Clarkeipterus otisius Last Modified in 12/05/13 | 89 | 14 | 14 | 0 | 1 | 0 | 0 | 1 |
[42] Erieopterus eriensis Last Modified in 12/05/13 | 23 | 80 | 80 | 0 | 1 | 0 | 0 | 1 |
[43] Eurypterus henkeni Last Modified in 12/05/13 | 18 | 84 | 84 | 0 | 2 | 0 | 0 | 1 |
[44] Eurypterus tetragonophthalmus Last Modified in 12/05/13 | 0 | 100 | 100 | 0 | 4 | 0 | 0 | 1 |
[45] Eurypterus leopoldi Last Modified in 12/05/13 | 49 | 54 | 54 | 0 | 1 | 0 | 0 | 1 |
[46] Eurypterus pittsfordensis Last Modified in 12/05/13 | 13 | 88 | 88 | 0 | 3 | 0 | 0 | 1 |
[47] Eurypterus henningsmoeni Last Modified in 12/05/13 | 22 | 80 | 80 | 0 | 2 | 0 | 0 | 1 |
[48] Orcanopterus manitoulinensis Last Modified in 12/05/13 | 17 | 82 | 82 | 0 | 5 | 0 | 0 | 1 |
[49] Pterygotus anglicus Last Modified in 12/05/13 | 2 | 95 | 95 | 0 | 7 | 0 | 0 | 1 |
[50] Adelophthalmus sievertsi Last Modified in 12/05/13 | 1 | 94 | 94 | 0 | 9 | 0 | 0 | 1 |
[51] Eurypterus dekayi Last Modified in 12/05/13 | 2 | 98 | 98 | 0 | 4 | 0 | 0 | 1 |
[52] Carcinosoma newlini Last Modified in 12/05/13 | 4 | 94 | 94 | 0 | 6 | 0 | 0 | 1 |
[53] Slimonia acuminata Last Modified in 12/05/13 | 4 | 95 | 95 | 0 | 5 | 0 | 0 | 1 |
[54] Acutiramus bohemicus Last Modified in 12/05/13 | 64 | 36 | 36 | 0 | 4 | 0 | 0 | 1 |
[55] Acutiramus macrophthalmus Last Modified in 12/05/13 | 2 | 95 | 95 | 0 | 7 | 0 | 0 | 1 |
[56] Erettopterus bilobus Last Modified in 12/05/13 | 4 | 93 | 93 | 0 | 7 | 0 | 0 | 1 |
[57] Erettopterus osiliensis Last Modified in 12/05/13 | 10 | 87 | 87 | 0 | 7 | 0 | 0 | 1 |
[58] Erettopterus serricaudatus Last Modified in 12/05/13 | 81 | 23 | 23 | 0 | 0 | 0 | 0 | 1 |
[59] Erettopterus waylandsmithi Last Modified in 12/05/13 | 78 | 25 | 25 | 0 | 1 | 0 | 0 | 1 |
[60] Jaekelopterus rhenaniae Last Modified in 12/05/13 | 23 | 74 | 74 | 0 | 7 | 0 | 0 | 1 |
[61] Jaekelopterus howelli Last Modified in 12/05/13 | 50 | 52 | 52 | 0 | 2 | 0 | 0 | 1 |
[62] Ciurcopterus ventricosus Last Modified in 12/05/13 | 26 | 75 | 75 | 0 | 3 | 0 | 0 | 1 |
[63] Nanahughmilleria norvegica Last Modified in 12/05/13 | 16 | 86 | 86 | 0 | 2 | 0 | 0 | 1 |
Taxonomic Overview for Matrix 'M1911' (66 Taxa)
taxon | unscored cells |
scored cells |
no cell support |
NPA cells |
"-" cells | cell images | labels on cell images |
member access |
[1] Weinbergina opitzi Last Modified in 12/05/13 | 6 | 77 | 77 | 0 | 21 | 0 | 0 | 1 |
[2] Chasmataspis laurencii Last Modified in 12/05/13 | 36 | 56 | 56 | 0 | 12 | 0 | 0 | 1 |
[3] Octoberaspis ushakovi Last Modified in 12/05/13 | 26 | 69 | 69 | 0 | 9 | 0 | 0 | 1 |
[4] Diploaspis casteri Last Modified in 12/05/13 | 32 | 65 | 65 | 0 | 7 | 0 | 0 | 1 |
[5] Loganamaraspis dunlopi Last Modified in 12/05/13 | 40 | 55 | 55 | 0 | 9 | 0 | 0 | 1 |
[6] Brachyopterus stubblefieldi Last Modified in 12/05/13 | 26 | 69 | 69 | 0 | 9 | 0 | 0 | 1 |
[7] Rhenopterus diensti Last Modified in 12/05/13 | 6 | 89 | 89 | 0 | 9 | 0 | 0 | 1 |
[8] Parastylonurus ornatus Last Modified in 12/05/13 | 8 | 88 | 88 | 0 | 8 | 0 | 0 | 1 |
[9] Laurieipterus elegans Last Modified in 12/05/13 | 47 | 52 | 52 | 0 | 5 | 0 | 0 | 1 |
[10] Kokomopterus longicaudatus Last Modified in 12/05/13 | 23 | 75 | 75 | 0 | 6 | 0 | 0 | 1 |
[11] Hardieopteurs macrophthalmus Last Modified in 12/05/13 | 23 | 73 | 73 | 0 | 8 | 0 | 0 | 1 |
[12] Drepanopterus pentlandicus Last Modified in 12/05/13 | 8 | 90 | 89 | 0 | 7 | 0 | 0 | 1 |
[13] Hibbertopterus scouleri Last Modified in 12/05/13 | 23 | 75 | 74 | 0 | 7 | 0 | 0 | 1 |
[14] Megarachne servinei Last Modified in 12/05/13 | 75 | 28 | 27 | 0 | 2 | 0 | 0 | 1 |
[15] Stoermeropterus conicus Last Modified in 12/05/13 | 6 | 94 | 93 | 0 | 5 | 0 | 0 | 1 |
[16] Stoermeropterus latus Last Modified in 12/05/13 | 22 | 77 | 77 | 0 | 5 | 0 | 0 | 1 |
[17] Stoermeropterus nodosus Last Modified in 12/05/13 | 48 | 54 | 54 | 0 | 2 | 0 | 0 | 1 |
[18] Vinetopterus struvei Last Modified in 12/05/13 | 12 | 87 | 87 | 0 | 5 | 0 | 0 | 1 |
[19] Vinetopterus martini Last Modified in 12/05/13 | 32 | 69 | 69 | 0 | 3 | 0 | 0 | 1 |
[20] Moselopterus ancylotelson Last Modified in 12/05/13 | 7 | 92 | 92 | 0 | 5 | 0 | 0 | 1 |
[21] Moselopterus elongatus Last Modified in 12/05/13 | 13 | 86 | 86 | 0 | 5 | 0 | 0 | 1 |
[22] Onychopterella augusti Last Modified in 12/05/13 | 29 | 71 | 71 | 0 | 4 | 0 | 0 | 1 |
[23] Onychopterella kokomoensis Last Modified in 12/05/13 | 11 | 87 | 87 | 0 | 6 | 0 | 0 | 1 |
[24] Dolichopterus macrocheirus Last Modified in 12/05/13 | 8 | 92 | 92 | 0 | 4 | 0 | 0 | 1 |
[25] Eurypterus remipes Last Modified in 12/05/13 | 6 | 94 | 94 | 0 | 4 | 0 | 0 | 1 |
[26] Hughmilleria socialis Last Modified in 12/05/13 | 7 | 91 | 91 | 0 | 6 | 0 | 0 | 1 |
[27] Tylopterella boylei Last Modified in 12/05/13 | 62 | 40 | 40 | 0 | 2 | 0 | 0 | 1 |
[28] Megalograptus ohioensis Last Modified in 12/05/13 | 6 | 89 | 89 | 0 | 9 | 0 | 0 | 1 |
[29] Mixopterus kiaeri Last Modified in 12/05/13 | 7 | 92 | 92 | 0 | 5 | 0 | 0 | 1 |
[30] Strobilopterus laticeps Last Modified in 12/05/13 | 56 | 46 | 46 | 0 | 2 | 0 | 0 | 1 |
[31] Strobilopterus princetonii g Last Modified in 12/05/13 | 44 | 60 | 60 | 0 | 0 | 0 | 0 | 1 |
[32] Strobilopterus princetonii Last Modified in 12/05/13 | 24 | 78 | 78 | 0 | 2 | 0 | 0 | 1 |
[33] Strobilopterus richardsoni Last Modified in 12/05/13 | 68 | 35 | 35 | 0 | 1 | 0 | 0 | 1 |
[34] Strobilopterus proteus Last Modified in 12/05/13 | 24 | 80 | 80 | 0 | 0 | 0 | 0 | 1 |
[35] Strobilopterus proteus b Last Modified in 12/05/13 | 52 | 52 | 52 | 0 | 0 | 0 | 0 | 1 |
[36] Strobilopterus proteus a Last Modified in 12/05/13 | 42 | 61 | 61 | 0 | 1 | 0 | 0 | 1 |
[37] Buffalopterus pustulosus Last Modified in 12/05/13 | 48 | 54 | 54 | 0 | 2 | 0 | 0 | 1 |
[38] Erieopterus microphthalmus Last Modified in 12/05/13 | 9 | 91 | 91 | 0 | 4 | 0 | 0 | 1 |
[39] Paraeurypterus anatoliensis Last Modified in 12/05/13 | 62 | 42 | 42 | 0 | 0 | 0 | 0 | 1 |
[40] Pentlandopterus minor Last Modified in 12/05/13 | 55 | 48 | 48 | 0 | 1 | 0 | 0 | 1 |
[41] Dolichopterus jewetti Last Modified in 12/05/13 | 10 | 90 | 90 | 0 | 4 | 0 | 0 | 1 |
[42] Ruedemannipterus stylonuroides Last Modified in 12/05/13 | 61 | 42 | 42 | 0 | 1 | 0 | 0 | 1 |
[43] Clarkeipterus testudineus Last Modified in 12/05/13 | 68 | 35 | 35 | 0 | 1 | 0 | 0 | 1 |
[44] Clarkeipterus otisius Last Modified in 12/05/13 | 89 | 14 | 14 | 0 | 1 | 0 | 0 | 1 |
[45] Erieopterus eriensis Last Modified in 12/05/13 | 28 | 75 | 75 | 0 | 1 | 0 | 0 | 1 |
[46] Eurypterus henkeni Last Modified in 12/05/13 | 21 | 81 | 81 | 0 | 2 | 0 | 0 | 1 |
[47] Eurypterus tetragonophthalmus Last Modified in 12/05/13 | 6 | 94 | 94 | 0 | 4 | 0 | 0 | 1 |
[48] Eurypterus leopoldi Last Modified in 12/05/13 | 49 | 54 | 54 | 0 | 1 | 0 | 0 | 1 |
[49] Eurypterus pittsfordensis Last Modified in 12/05/13 | 18 | 83 | 83 | 0 | 3 | 0 | 0 | 1 |
[50] Eurypterus henningsmoeni Last Modified in 12/05/13 | 27 | 75 | 75 | 0 | 2 | 0 | 0 | 1 |
[51] Orcanopterus manitoulinensis Last Modified in 12/05/13 | 20 | 79 | 79 | 0 | 5 | 0 | 0 | 1 |
[52] Pterygotus anglicus Last Modified in 12/05/13 | 7 | 90 | 90 | 0 | 7 | 0 | 0 | 1 |
[53] Adelophthalmus sievertsi Last Modified in 12/05/13 | 5 | 90 | 90 | 0 | 9 | 0 | 0 | 1 |
[54] Eurypterus dekayi Last Modified in 12/05/13 | 8 | 92 | 92 | 0 | 4 | 0 | 0 | 1 |
[55] Carcinosoma newlini Last Modified in 12/05/13 | 7 | 91 | 91 | 0 | 6 | 0 | 0 | 1 |
[56] Slimonia acuminata Last Modified in 12/05/13 | 9 | 90 | 90 | 0 | 5 | 0 | 0 | 1 |
[57] Acutiramus bohemicus Last Modified in 12/05/13 | 67 | 33 | 33 | 0 | 4 | 0 | 0 | 1 |
[58] Acutiramus macrophthalmus Last Modified in 12/05/13 | 9 | 88 | 88 | 0 | 7 | 0 | 0 | 1 |
[59] Erettopterus bilobus Last Modified in 12/05/13 | 8 | 89 | 89 | 0 | 7 | 0 | 0 | 1 |
[60] Erettopterus osiliensis Last Modified in 12/05/13 | 13 | 84 | 84 | 0 | 7 | 0 | 0 | 1 |
[61] Erettopterus serricaudatus Last Modified in 12/05/13 | 82 | 22 | 22 | 0 | 0 | 0 | 0 | 1 |
[62] Erettopterus waylandsmithi Last Modified in 12/05/13 | 79 | 24 | 24 | 0 | 1 | 0 | 0 | 1 |
[63] Jaekelopterus rhenaniae Last Modified in 12/05/13 | 28 | 69 | 69 | 0 | 7 | 0 | 0 | 1 |
[64] Jaekelopterus howelli Last Modified in 12/05/13 | 54 | 48 | 48 | 0 | 2 | 0 | 0 | 1 |
[65] Ciurcopterus ventricosus Last Modified in 12/05/13 | 28 | 73 | 73 | 0 | 3 | 0 | 0 | 1 |
[66] Nanahughmilleria norvegica Last Modified in 12/05/13 | 20 | 82 | 82 | 0 | 2 | 0 | 0 | 1 |
Project views
type | number of views | Individual items viewed (where applicable) |
Total project views | 38922 | |
Project overview | 4779 | |
Specimen list | 3240 | |
Matrix views | 3109 | Matrix landing page (2528 views); Eurypterina Phylogeny (272 views); Ontogeny matrix (309 views); |
Media views | 7155 | Media search (6226 views); M149667 (929 views); |
Taxon list | 20630 | |
Documents list | 6 | |
Bibliography | 3 |
Project downloads
type | number of downloads | Individual items downloaded (where applicable) |
Total downloads from project | 370 | |
Matrix downloads | 7 | Eurypterina Phylogeny (6 downloads); Ontogeny matrix (1 download); |
Project downloads | 363 |