Morphobank

Project 4513: S. P. Zack, T. A. Penkrot. 2024. New material of Lophiparamys debequensis from the Willwood Formation (early Eocene) of Wyoming, including the first postcrania of the genus. Journal of Paleontology. epub ahead of print:1-16.

Specimen: † Lophiparamys debequensis (USNM:527685e)
View: occlusal

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Abstract

We report new material of the rare early Eocene rodent Lophiparamys debequensis from the Willwood Formation of the southern Bighorn Basin, north-central Wyoming. The new material constitutes the first record of L. debequensis from the Bighorn Basin and documents aspects of the anatomy of Lophiparamys that were previously unknown, including a portion of the maxilla and a portion of the tarsus. The maxillary fragment demonstrates that Lophiparamys has a small P3 and a relatively large infraorbital canal. The tarsus of Lophiparamys is similar to other early rodents but differs in a few features that suggest an arboreal locomotor repertoire, including an asymmetric astragalar trochlea, long astragalar neck, transverse astragalar sustentacular facet, short calcaneal tuber, elongate calcaneal ectal facet, and circular calcaneal cuboid facet. The presence of arboreally adapted features in the tarsus of Lophiparamys is consistent with a hypothesized relationship between small-bodied Eocene microparamyine rodents and extant Gliridae. Phylogenetic analysis fails to consistently support this relationship or monophyly of Microparamyinae, but both remain plausible. Comparison of L. debequensis with other species of the genus emphasize the species’ distinctiveness of and suggest the presence of multiple lineages of Lophiparamys.

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Article DOI: 10.1017/jpa.2023.88

Project DOI: 10.7934/P4513, http://dx.doi.org/10.7934/P4513

This project contains	Matrices
1 Media 1 Matrix 3 Documents 94 Taxa 1 Specimen 108 Characters Total size of project's media files: 716.92k Download Project SDD File	Total scored cells: 8550 Total media associated with cells: 0 Total labels associated with cell media: 0
	Characters
	Total characters: 108 Total characters with associated media: 0 Total characters with media with labels: 0 Total character states: 310 Total character states with associated media: 0 Total character states with media with labels:0 Total unordered/ordered characters:2/106

Currently Viewing:
MorphoBank Project 4513

Creation Date:
29 December 2022
Publication Date:
17 November 2023
Matrix downloads: 6

Authors' Institutions

University of Arizona

Members

Shawn Zack
Project Administrator

108

8550
(8518, 32, 0)

Taxonomic Overview for Matrix 'M29103' (94 Taxa)

taxon	unscored cells	scored cells	no cell support	NPA cells	"-" cells	cell images	labels on cell images	member access
[1] † Chambius Taxon name last Modified on 06/19/23	42	66	66	0	0	0	0	1
[2] † Macrocranion Taxon name last Modified on 06/19/23	24	85	84	0	0	0	0	1
[3] † Leptacodon Taxon name last Modified on 06/19/23	23	85	85	0	0	0	0	1
[4] † Palaechthon Taxon name last Modified on 06/19/23	23	85	85	0	0	0	0	1
[5] † Plesiolestes Taxon name last Modified on 06/19/23	23	85	85	0	0	0	0	1
[6] † Protungulatum Taxon name last Modified on 06/19/23	23	85	85	0	0	0	0	1
[7] † Mimotona Taxon name last Modified on 06/19/23	19	89	89	0	0	0	0	1
[8] † Gomphos Taxon name last Modified on 06/19/23	26	82	82	0	0	0	0	1
[9] † Eurymylus Taxon name last Modified on 06/19/23	27	81	81	0	0	0	0	1
[10] † Heomys Taxon name last Modified on 06/19/23	16	92	92	0	0	0	0	1
[11] † Rhombomylus Taxon name last Modified on 06/19/23	16	93	92	0	0	0	0	1
[12] † Decipomys Taxon name last Modified on 06/19/23	53	55	55	0	0	0	0	1
[13] † Alagomys Taxon name last Modified on 06/19/23	17	92	91	0	0	0	0	1
[14] † Tribosphenomys Taxon name last Modified on 06/19/23	12	96	96	0	0	0	0	1
[15] † Ivanantonia Taxon name last Modified on 06/19/23	63	45	45	0	0	0	0	1
[16] † Cocomys Taxon name last Modified on 06/19/23	13	95	95	0	0	0	0	1
[17] † Bumbanomys Taxon name last Modified on 06/19/23	27	82	81	0	0	0	0	1
[18] † Tamquammys Taxon name last Modified on 06/19/23	12	97	96	0	0	0	0	1
[19] † Tsinlingomys Taxon name last Modified on 06/19/23	13	95	95	0	0	0	0	1
[20] † Protataromys Taxon name last Modified on 06/19/23	25	85	83	0	0	0	0	1
[21] † Yindirtemys Taxon name last Modified on 06/19/23	14	97	94	0	0	0	0	1
[22] † Tataromys Taxon name last Modified on 06/19/23	21	87	87	0	0	0	0	1
[23] † Advenimus Taxon name last Modified on 06/19/23	13	100	95	0	0	0	0	1
[24] † Petrokozlovia Taxon name last Modified on 06/19/23	18	90	90	0	0	0	0	1
[25] † Yuomys Taxon name last Modified on 06/19/23	22	87	86	0	0	0	0	1
[26] † Anadianomys Taxon name last Modified on 06/19/23	26	83	82	0	0	0	0	1
[27] † Bandaomys Taxon name last Modified on 06/19/23	25	83	83	0	0	0	0	1
[28] † Birbalomys Taxon name last Modified on 06/19/23	1	112	107	0	0	0	0	1
[29] † Chapattimys Taxon name last Modified on 06/19/23	5	106	103	0	0	0	0	1
[30] † Fallomus Taxon name last Modified on 06/19/23	4	109	104	0	0	0	0	1
[31] † Diatomys Taxon name last Modified on 06/19/23	28	80	80	0	0	0	0	1
[32] † Baluchimys Taxon name last Modified on 06/19/23	19	91	89	0	0	0	0	1
[33] † Lophibaluchia Taxon name last Modified on 06/19/23	26	87	82	0	0	0	0	1
[34] † Lindsaya Taxon name last Modified on 06/19/23	24	85	84	0	0	0	0	1
[35] † Hodsahibia Taxon name last Modified on 06/19/23	4	116	104	0	0	0	0	1
[36] † Bugtimys Taxon name last Modified on 06/19/23	1	109	107	0	0	0	0	1
[37] † Protophiomys Taxon name last Modified on 06/19/23	7	106	101	0	0	0	0	1
[38] † Phiomys Taxon name last Modified on 06/19/23	11	101	97	0	0	0	0	1
[39] † Metaphiomys Taxon name last Modified on 06/19/23	23	89	85	0	0	0	0	1
[40] † Diamantomys Taxon name last Modified on 06/19/23	22	86	86	0	0	0	0	1
[41] † Paraphiomys Taxon name last Modified on 06/19/23	20	89	88	0	0	0	0	1
[42] † Paraulacodus Taxon name last Modified on 06/19/23	28	80	80	0	0	0	0	1
[43] † Platypittamys Taxon name last Modified on 06/19/23	15	93	93	0	0	0	0	1
[44] † Incamys Taxon name last Modified on 06/19/23	5	105	103	0	0	0	0	1
[45] † Sallamys Taxon name last Modified on 06/19/23	15	94	93	0	0	0	0	1
[46] † Branisamys Taxon name last Modified on 06/19/23	16	93	92	0	0	0	0	1
[47] † Tsaganomys Taxon name last Modified on 06/19/23	15	94	93	0	0	0	0	1
[48] † Pappocricetodon Taxon name last Modified on 06/19/23	36	73	72	0	0	0	0	1
[49] † Atavocricetodon Taxon name last Modified on 06/19/23	36	74	72	0	0	0	0	1
[50] † Pseudocricetodon Taxon name last Modified on 06/19/23	42	67	66	0	0	0	0	1
[51] † Sinosminthus Taxon name last Modified on 06/19/23	43	65	65	0	0	0	0	1
[52] † Primisminthus Taxon name last Modified on 06/19/23	45	67	63	0	0	0	0	1
[53] † Aksyiromys Taxon name last Modified on 06/19/23	48	62	60	0	0	0	0	1
[54] † Zindapiria Taxon name last Modified on 06/19/23	35	75	73	0	0	0	0	1
[55] † Yoderimys Taxon name last Modified on 06/19/23	1	108	107	0	0	0	0	1
[56] † Eomys Taxon name last Modified on 06/19/23	8	104	100	0	0	0	0	1
[57] † Glibia Taxon name last Modified on 06/19/23	30	79	78	0	0	0	0	1
[58] † Zegdoumys Taxon name last Modified on 06/19/23	38	70	70	0	0	0	0	1
[59] † Paranomalurus Taxon name last Modified on 06/19/23	22	86	86	0	0	0	0	1
[60] † Nementchamys Taxon name last Modified on 06/19/23	21	89	87	0	0	0	0	1
[61] † Downsimys Taxon name last Modified on 06/19/23	12	97	96	0	0	0	0	1
[62] † Janimus Taxon name last Modified on 06/19/23	24	84	84	0	0	0	0	1
[63] † Eutypomys Taxon name last Modified on 06/19/23	20	89	88	0	0	0	0	1
[64] † Eogliravus Taxon name last Modified on 06/19/23	12	100	96	0	0	0	0	1
[65] † Glamys Taxon name last Modified on 06/19/23	21	87	87	0	0	0	0	1
[66] † Bransatoglis Taxon name last Modified on 06/19/23	11	98	97	0	0	0	0	1
[67] † Knightomys Taxon name last Modified on 06/19/23	16	93	92	0	0	0	0	1
[68] † Prolapsus Taxon name last Modified on 06/19/23	15	95	93	0	0	0	0	1
[69] † Pauromys Taxon name last Modified on 06/19/23	8	102	100	0	0	0	0	1
[70] † Mysops Taxon name last Modified on 06/19/23	17	93	91	0	0	0	0	1
[71] † Ardynomys Taxon name last Modified on 06/19/23	18	94	90	0	0	0	0	1
[72] † Franimys Taxon name last Modified on 06/19/23	57	51	51	0	0	0	0	1
[73] † Paramys Taxon name last Modified on 06/19/23	3	105	105	0	0	0	0	1
[74] † Reithroparamys Taxon name last Modified on 06/19/23	16	94	92	0	0	0	0	1
[75] † Acritoparamys Taxon name last Modified on 06/19/23	17	91	91	0	0	0	0	1
[76] † Ailuravus Taxon name last Modified on 06/19/23	2	107	106	0	0	0	0	1
[77] † Corbarimys Taxon name last Modified on 06/19/23	6	105	102	0	0	0	0	1
[78] † Hartenbergeromys Taxon name last Modified on 06/19/23	8	103	100	0	0	0	0	1
[79] † Pantrogna Taxon name last Modified on 06/19/23	3	111	105	0	0	0	0	1
[80] † Protadelomys Taxon name last Modified on 06/19/23	1	108	107	0	0	0	0	1
[81] † Pseudoltinomys Taxon name last Modified on 06/19/23	3	108	105	0	0	0	0	1
[82] † Theridomys Taxon name last Modified on 06/19/23	4	106	104	0	0	0	0	1
[83] † Blainvillimys Taxon name last Modified on 06/19/23	2	109	106	0	0	0	0	1
[84] † Elfomys Taxon name last Modified on 06/19/23	13	97	95	0	0	0	0	1
[85] † Remys Taxon name last Modified on 06/19/23	1	110	107	0	0	0	0	1
[86] † Suevosciurus Taxon name last Modified on 06/19/23	3	110	105	0	0	0	0	1
[87] † Prosciurus Taxon name last Modified on 06/19/23	23	86	85	0	0	0	0	1
[88] † Plesispermophilus Taxon name last Modified on 06/19/23	9	101	99	0	0	0	0	1
[89] † Protosciurus Taxon name last Modified on 06/19/23	16	92	92	0	0	0	0	1
[90] † Palaeosciurus Taxon name last Modified on 06/19/23	2	107	106	0	0	0	0	1
[91] † Zamoramys Taxon name last Modified on 06/19/23	41	68	67	0	0	0	0	1
[92] † Lophiparamys debequensis Taxon name last Modified on 06/30/23	13	99	94	1	0	0	0	1
[93] † Microparamys hunterae Taxon name last Modified on 06/30/23	10	97	96	2	0	0	0	1
[94] † Microparamys sambucus Taxon name last Modified on 08/02/23	0	80	79	29	0	0	0	1

Project downloads

type	number of downloads	Individual items downloaded (where applicable)
Total downloads from project	6
Matrix downloads	6	Marivaux et al. (2004) matrix with Lophiparamys and Microparamys (6 downloads);