Project 4671: J. Velez-Juarbe, A. R. Wood. 2018. An early Miocene dugongine (Sirenia: Dugongidae) from Panama. Journal of Vertebrate Paleontology. 38 (5):e1511799.
Abstract
Herein, we describe a new early Miocene dugongine from marine deposits of the Culebra Cut (Gaillard Cut) of the Panama Canal. The new taxon, Culebratherium alemani, gen. et sp. nov., represents one of the few records of late Aquitanian–early Burdigalian sirenians and the oldest sirenian from Central America. A phylogenetic analysis places Culebratherium in a clade with Dioplotherium cf. D. allisoni (Miocene of Brazil), Dioplotherium allisoni (Miocene of Baja California Sur, Mexico, and California, U.S.A.), and Dioplotherium sp. (Pliocene of Yucatan, Mexico). Similar to these taxa, Culebratherium is characterized by the presence of large incisor tusks, a premaxillary symphysis without a boss, a premaxilla-frontal suture forming a butt joint, and a moderately downturned rostrum. In addition, Culebratherium exhibits prominent occipital-cervical attachment sites for enlarged neck musculature. These features taken together are interpreted as adaptations for uprooting large, deeply buried seagrass rhizomes. Other dugongines with similar, yet convergent, dental and facial adaptations are known from earlier or coeval deposits in Puerto Rico, Florida, South Carolina, California, Baja California Sur, Brazil, and India and were constituents of sympatric paleocommunities of sirenians. Only fragmentary evidence of a second smaller and unidentifiable sirenian species is known from the Culebra Formation, but future discoveries may reveal a similar sympatric paleocommunity during the early Miocene of Panama. Finally, we used the results of the phylogenetic analysis to propose the new clade Pan-Sirenia as the most inclusive group consisting of stem and crown groups and redefine the Sirenia, Dugongidae, and Dugonginae clades.Read the article »
Article DOI: 10.1080/02724634.2018.1511799
Project DOI: 10.7934/P4671, http://dx.doi.org/10.7934/P4671
This project contains | Matrices |
---|---|
Download Project SDD File | Total scored cells: 3915 Total media associated with cells: 0 Total labels associated with cell media: 0 |
Characters | |
Total characters: 83 Total characters with associated media: 0 Total characters with media with labels: 0 Total character states: 215 Total character states with associated media: 0 Total character states with media with labels:0 Total unordered/ordered characters:83/0 |
Currently Viewing:
MorphoBank Project 4671
MorphoBank Project 4671
- Creation Date:
09 May 2023 - Publication Date:
09 May 2023 - Project views: 4742
- Matrix downloads: 4
This research
supported by
Authors' Institutions
- National Museum of Natural History, Smithsonian Institution
- Iowa State University
- University of Florida
- Natural History Museum of Los Angeles County
- Florida Museum of Natural History
Members
member name | taxa | specimens | media | chars | character
| cell scorings (scored, NPA, "-") | cell
| rules | ||||||
MorphoBank Curator Project Administrator | 62 | 7 | 7 | 83 | 0 | 0 | 3915 (3915, 0, 0) | 0 | 0 | 0 | ||||
Jorge Velez-Juarbe Full membership | 0 | 0 | 0 | 0 | 0 | 0 | 0 (0, 0, 0) | 0 | 0 | 0 |
Taxonomic Overview for Matrix 'M29268' (62 Taxa)
taxon | unscored cells |
scored cells |
no cell support |
NPA cells |
"-" cells | cell images | labels on cell images |
member access |
[1] † Phosphatherium Last Modified in 05/09/23 | 22 | 61 | 61 | 0 | 0 | 0 | 0 | 2 |
[2] † Cornwallius sookensis Last Modified in 05/09/23 | 20 | 63 | 63 | 0 | 0 | 0 | 0 | 2 |
[3] † Prorastomus sirenoides Last Modified in 05/09/23 | 17 | 66 | 66 | 0 | 0 | 0 | 0 | 2 |
[4] † Pezosiren portelli Last Modified in 05/09/23 | 17 | 66 | 66 | 0 | 0 | 0 | 0 | 2 |
[5] † Sobrarbesiren cardieli Last Modified in 05/09/23 | 21 | 62 | 62 | 0 | 0 | 0 | 0 | 2 |
[6] † Ashokia antiqua Last Modified in 05/09/23 | 36 | 47 | 47 | 0 | 0 | 0 | 0 | 2 |
[7] † Protosiren fraasi Last Modified in 05/09/23 | 19 | 64 | 64 | 0 | 0 | 0 | 0 | 2 |
[8] † Protosiren smithae Last Modified in 05/09/23 | 8 | 75 | 75 | 0 | 0 | 0 | 0 | 2 |
[9] † Libysiren sickenbergi Last Modified in 05/09/23 | 20 | 63 | 63 | 0 | 0 | 0 | 0 | 2 |
[10] † Anomotherium langewieschei Last Modified in 05/09/23 | 46 | 37 | 37 | 0 | 0 | 0 | 0 | 2 |
[11] † Miosiren kocki Last Modified in 05/09/23 | 18 | 65 | 65 | 0 | 0 | 0 | 0 | 2 |
[12] † Potamosiren madgalenensis Last Modified in 05/09/23 | 65 | 18 | 18 | 0 | 0 | 0 | 0 | 2 |
[13] † Ribodon limbatus Last Modified in 05/09/23 | 63 | 20 | 20 | 0 | 0 | 0 | 0 | 2 |
[14] Trichechus manatus latirostris Last Modified in 05/09/23 | 3 | 80 | 80 | 0 | 0 | 0 | 0 | 2 |
[15] Trichechus senegalensis Last Modified in 05/09/23 | 3 | 80 | 80 | 0 | 0 | 0 | 0 | 2 |
[16] Trichechus inunguis Last Modified in 05/09/23 | 3 | 80 | 80 | 0 | 0 | 0 | 0 | 2 |
[17] † Eotheriodes aegyptiacus Last Modified in 05/09/23 | 31 | 52 | 52 | 0 | 0 | 0 | 0 | 2 |
[18] † Eotheroides clavigerum Last Modified in 05/09/23 | 11 | 72 | 72 | 0 | 0 | 0 | 0 | 2 |
[19] † Eotheroides sandersi Last Modified in 05/09/23 | 13 | 70 | 70 | 0 | 0 | 0 | 0 | 2 |
[20] † Eotheroides lambondrano Last Modified in 05/09/23 | 37 | 47 | 46 | 0 | 0 | 0 | 0 | 2 |
[21] † Prototherium veronense Last Modified in 05/09/23 | 25 | 58 | 58 | 0 | 0 | 0 | 0 | 2 |
[22] † Prototherium ausetanum Last Modified in 05/09/23 | 40 | 43 | 43 | 0 | 0 | 0 | 0 | 2 |
[23] † Prototherium intermedium s.l. Last Modified in 05/09/23 | 31 | 52 | 52 | 0 | 0 | 0 | 0 | 2 |
[24] † Eosiren libyca Last Modified in 05/09/23 | 29 | 54 | 54 | 0 | 0 | 0 | 0 | 2 |
[25] † Eosiren imenti Last Modified in 05/09/23 | 28 | 55 | 55 | 0 | 0 | 0 | 0 | 2 |
[26] † Halitherium taulannense Last Modified in 05/09/23 | 14 | 69 | 69 | 0 | 0 | 0 | 0 | 2 |
[27] † Kaupitherium gruelli Last Modified in 05/09/23 | 2 | 81 | 81 | 0 | 0 | 0 | 0 | 2 |
[28] † Kaupitherium bronni Last Modified in 05/09/23 | 6 | 77 | 77 | 0 | 0 | 0 | 0 | 2 |
[29] † Lentiarenium cristolii Last Modified in 05/09/23 | 34 | 49 | 49 | 0 | 0 | 0 | 0 | 2 |
[30] † Priscosiren atlantica Last Modified in 05/09/23 | 11 | 72 | 72 | 0 | 0 | 0 | 0 | 2 |
[31] † Metaxytherium krahuletzi Last Modified in 05/09/23 | 2 | 81 | 81 | 0 | 0 | 0 | 0 | 2 |
[32] † Metaxytherium medium Last Modified in 05/09/23 | 13 | 70 | 70 | 0 | 0 | 0 | 0 | 2 |
[33] † Metaxytherium serresii Last Modified in 05/09/23 | 2 | 81 | 81 | 0 | 0 | 0 | 0 | 2 |
[34] † Metaxytherium subapenninum Last Modified in 05/09/23 | 5 | 78 | 78 | 0 | 0 | 0 | 0 | 2 |
[35] † Metaxytherium floridanum Last Modified in 05/09/23 | 0 | 83 | 83 | 0 | 0 | 0 | 0 | 2 |
[36] † Metaxytherium crataegense Last Modified in 05/09/23 | 2 | 81 | 81 | 0 | 0 | 0 | 0 | 2 |
[37] † Metaxytherium arctodites Last Modified in 05/09/23 | 0 | 83 | 83 | 0 | 0 | 0 | 0 | 2 |
[38] † Dusisiren reinharti Last Modified in 05/09/23 | 30 | 55 | 53 | 0 | 0 | 0 | 0 | 2 |
[39] † Dusisiren jordani Last Modified in 05/09/23 | 5 | 79 | 78 | 0 | 0 | 0 | 0 | 2 |
[40] † Dusisiren dewana Last Modified in 05/09/23 | 18 | 65 | 65 | 0 | 0 | 0 | 0 | 2 |
[41] † Hydrodamalis cuestae Last Modified in 05/09/23 | 17 | 66 | 66 | 0 | 0 | 0 | 0 | 2 |
[42] † Hydrodamalis gigas Last Modified in 05/09/23 | 4 | 79 | 79 | 0 | 0 | 0 | 0 | 2 |
[43] † Metaxytherium albifontanum Last Modified in 05/09/23 | 1 | 82 | 82 | 0 | 0 | 0 | 0 | 2 |
[44] † Caribosiren turneri Last Modified in 05/09/23 | 31 | 52 | 52 | 0 | 0 | 0 | 0 | 2 |
[45] † Crenatosiren olseni Last Modified in 05/09/23 | 3 | 80 | 80 | 0 | 0 | 0 | 0 | 2 |
[46] † Nanosiren sanchezi Last Modified in 05/09/23 | 32 | 51 | 51 | 0 | 0 | 0 | 0 | 2 |
[47] † Nanosiren garciae Last Modified in 05/09/23 | 24 | 59 | 59 | 0 | 0 | 0 | 0 | 2 |
[48] Dugong dugon Last Modified in 05/09/23 | 0 | 83 | 83 | 0 | 0 | 0 | 0 | 2 |
[49] † Callistosiren boriquensis Last Modified in 05/09/23 | 17 | 66 | 66 | 0 | 0 | 0 | 0 | 2 |
[50] † Bharatisiren indica Last Modified in 05/09/23 | 21 | 62 | 62 | 0 | 0 | 0 | 0 | 2 |
[51] † Bharatisiren kachchhensis Last Modified in 05/09/23 | 25 | 58 | 58 | 0 | 0 | 0 | 0 | 2 |
[52] † Domningia sodhae Last Modified in 05/09/23 | 18 | 65 | 65 | 0 | 0 | 0 | 0 | 2 |
[53] † Kutchisiren cylindrica Last Modified in 05/09/23 | 21 | 62 | 62 | 0 | 0 | 0 | 0 | 2 |
[54] † Dioplotherium manigaulti Last Modified in 05/09/23 | 26 | 57 | 57 | 0 | 0 | 0 | 0 | 2 |
[55] † Dioplotherium allisoni Last Modified in 05/09/23 | 17 | 66 | 66 | 0 | 0 | 0 | 0 | 2 |
[56] † Culebratherium alemani Last Modified in 05/09/23 | 16 | 67 | 67 | 0 | 0 | 0 | 0 | 2 |
[57] † MPEG-63V d. cf. D. allisoni Last Modified in 05/09/23 | 15 | 68 | 68 | 0 | 0 | 0 | 0 | 2 |
[58] † ECOCHM-2491 diop. sp. Last Modified in 05/09/23 | 24 | 59 | 59 | 0 | 0 | 0 | 0 | 2 |
[59] † Xenosiren yucateca Last Modified in 05/09/23 | 51 | 32 | 32 | 0 | 0 | 0 | 0 | 2 |
[60] † Corystosiren varguezi Last Modified in 05/09/23 | 38 | 45 | 45 | 0 | 0 | 0 | 0 | 2 |
[61] † Rytiodus heali Last Modified in 05/09/23 | 21 | 62 | 62 | 0 | 0 | 0 | 0 | 2 |
[62] † Rytiodus capgrandi Last Modified in 05/09/23 | 43 | 40 | 40 | 0 | 0 | 0 | 0 | 2 |
Project views
type | number of views | Individual items viewed (where applicable) |
Total project views | 4742 | |
Project overview | 245 | |
Media views | 1243 | Media search (582 views); M862364 (98 views); M862365 (94 views); M862366 (97 views); M862367 (94 views); M862368 (93 views); M862369 (91 views); M862370 (94 views); |
Matrix views | 154 | Matrix landing page (142 views); Matrix (12 views); |
Bibliography | 129 | |
Views for media list | 408 | |
Specimen list | 1013 | |
Taxon list | 1546 | |
Documents list | 4 |
Project downloads
type | number of downloads | Individual items downloaded (where applicable) |
Total downloads from project | 5 | |
Project downloads | 1 | |
Matrix downloads | 4 | Matrix (4 downloads); |