MammalBase - Accepted taxon: Proechimys guyannensis

Accepted taxon: Proechimys guyannensis
Taxon:	Proechimys guyannensis
Rank:	Species
Higher Classification:	RODENTIA \| HYSTRICOMORPHA \| HYSTRICOGNATHI \| Echimyidae \| Eumysopinae \| Proechimys
Reference:	Wilson, Don E., and DeeAnn M. Reeder, eds. Mammal Species of the World. A Taxonomic and Geographic Reference (3rd ed), JHU Press, 2005.

Fig.1 - Ternary plot of the proximate analysis for the Proechimys guyannensis diet.
CF (Crude Fibre) 11, ASH (Ash contents) 4, NFE (Nitrogen-Free-Extract) 57, CP (Crude Protein) 19, EE (Ether Extract) 8. See details for the calculations in Lintulaakso, K., Tatti, N. and Žliobaitė, I., 2022. Quantifying mammalian diets. Mammalian Biology, pp.1-15. [DOI]

Table 1. List of Diet Items for Proechimys guyannensis.
TSN Complete name	Part	Ratio ^a.	Reference(s)
Magnoliopsida	FRUIT	50.00	Damuth, J…
Magnoliopsida	SEED	33.33	Damuth, J…
Insecta	WHOLE	16.67	Damuth, J…

^a. Standardized values. See details for the calculations in Lintulaakso, K., Tatti, N. and Žliobaitė, I., 2022. Quantifying mammalian diets. Mammalian Biology, pp.1-15. [DOI]

Table 2. List of Standard Traits for Proechimys guyannensis.
Trait	Selected Value	All Value(s)	Reference(s)
Dietary category: Eisenberg 1981	Frugivore-Granivore	Frugivore-Granivore	Ferreira,…
Dietary category: Miljutin 2009	Frugivore	Frugivore	Ferreira,…
Locomotion: Eisenberg 1981	Terrestrial	Terrestrial	Carvalhae…

Table 3. List of Standard Measurements for Proechimys guyannensis.
Measurement	Location	Unit	n Total	n Unknown	n Female	n Male	Min	Mean	Max	SD	Reference(s)
Body Mass (BM)	nan	g	-	-	-	-	136	-	500	-	Freudenth…
Body Mass (BM)	nan	g	40	-	-	40	-	329.7	-	-	Nelson, A…
Body Mass (BM)	nan	g	36	-	36	-	-	310.8	-	-	Nelson, A…
Body Mass (BM)	nan	g	-	-	-	-	-	210	-	-	Ferreira,…
Body Mass (BM)	Brazil	g	-	-	-	-	-	191	-	-	Paglia,A.…
Head-Body Length (HBL)	nan	mm	40	-	-	40	-	220	-	-	Nelson, A…
Head-Body Length (HBL)	nan	mm	36	-	36	-	-	221	-	-	Nelson, A…

Table 4. List of other Measurements ^b. for Proechimys guyannensis.
Measurement	Location	Unit	n Total	n Unknown	n Female	n Male	Min	Mean	Max	SD	Reference(s)
neck length	nan	mm	-	-	-	-	-	24	-	-	Nelson, A…
BCL, basicranial length	nan	mm	2	2	-	-	15	15	15	0	Ferreira,…
DL, diastema length	nan	mm	2	2	-	-	11	11	11	0	Ferreira,…
FW, frontal width	nan	mm	2	2	-	-	17	18	19	1	Ferreira,…
IW, incisor width	nan	mm	2	2	-	-	3	3	3	0	Ferreira,…
RL, rostral length	nan	mm	2	2	-	-	20	20	20	0	Ferreira,…
skull, condyle-basal length of the skull	nan	mm	2	2	-	-	38	40	42	2	Ferreira,…
TL, total length of skull	nan	mm	2	2	-	-	51	55	58	3	Ferreira,…
Upper T, Upper incisor transverse diameter	nan	mm	2	2	-	-	1	1	1	0	Ferreira,…
UTRW, Upper tooth row length	nan	mm	2	2	-	-	8	12	17	5	Ferreira,…
ZL, zygomatic arc length	nan	mm	2	2	-	-	22	23	24	1	Ferreira,…

^b. other Measurements. Source Measurements which are not listed on or mapped with the Standard Traits..

Table 5. List of Data Sources for Proechimys guyannensis.
Taxon	Reference	Match	Status
Proechimys guyannensis	Paglia,A. P., 2012, Lista Anotada dos MamÃƒÂferos do Brasil 2Ã‚Âª EdiÃƒÂ§ÃƒÂ£o Annotated Checklist of Brazilian Mammals,	1: Exact Taxon match	Verified - Accepted
Proechimys guyannensis	Damuth, J. 2010. ABSOLUT 6 a mammalian database compiled by the national center for ecological analysis and synthesis (NCEAS ) workshop on mammalian communities.	1: Exact Taxon match	Verified - Accepted
Proechimys guyannensis	Carvalhaes, J.G., Tavares, W.C., do Val Vilela, R. and D’Andrea, P.S., 2022. Phylogenetic, Allometric, and Ecological Factors Affecting Morphological Variation in the Scapula and Humerus of Spiny Rats (Rodentia: Echimyidae). Journal of Mammalian Evolution, pp.1-18.	1: Exact Taxon match	Verified - Accepted
Proechimys guyannensis	Nelson, A., Engelman, R.K. and Croft, D.A., 2023. How to weigh a fossil mammal? South American notoungulates as a case study for estimating body mass in extinct clades. Journal of Mammalian Evolution, 30(3), pp.773-809.	1: Exact Taxon match	Verified - Accepted
Proechimys guyannensis	Ferreira, J.D., Rinderknecht, A., de Moura Bubadué, J., Gasparetto, L.F., Dozo, M.T., Sánchez-Villagra, M.R. and Kerber, L., 2024. Unveiling the neuroanatomy of Josephoartigasia monesi and the evolution of encephalization in caviomorph rodents. Brain Structure and Function, pp.1-15.	1: Exact Taxon match	Verified - Accepted
Proechimys guyannensis	Freudenthal, M. and Martín-Suárez, E., 2013. Estimating body mass of fossil rodents. Scripta Geologica, 145, pp.1-513.	1: Exact Taxon match	Verified - Accepted

Citation for this page: [The MammalBase community 2025. / CC BY 4.0. http://doi.org/10.5281/zenodo.7462864 Proechimys guyannensis , Accessed 16th July 2025 at https://mammalbase.net/me/10169]