Wehrli considered that the dimensions variation represents a sexual dimorphism

Wehrli considered that the dimensions variation represents a sexual dimorphism

The new strange shape of the brand new p4, rather than mesolingual conid, try characteristic of your Tragulidae and you can Bachitheriidae , , . The combination out of good tusk such as for instance p1, an extremely elongated diastema between p1 and p2 and this build of your own p4 is exclusive one of ruminants and you will mean the latest Bachitheriidae , . The differentiation ranging from Bachitherium kinds is mostly based on dimensions differences , . But the diastema size , the newest size of the new postcranial remains , , and variations in the general model of the brand new mandible , , , match a varieties-certain ecomorphology. New p3 and you can p4 from Bachitherium specimens regarding Gaimersheim1 can also be have neocrista when you look at the right back valley. Blondel contends this particular function is unique among Bachitheriidae and is a keen autapomorphy of your kinds B. lavocati. However, similar possess are noticed toward B. curtum and you may B. insigne, no matter if they remains rare . Aiglstorfer et al. have shown the huge variability as this new traguline p4 within one species. New p4 of your Tragulidae Dorcatherium naui is do not have the cristid developing this new lingual edge of the latest enamel to the whole mediator you can easily . The size of the teeth examined here's very similar to that from Bachitherium curtum and you can B. lavocati , , , (find S1 Annex). not, the latest diastema length of brand new specimens from Gaimersheim is actually longer than those of the small B. curtum, exactly what clearly corresponds to brand new analysis off B. lavocati recommended of the Sudre . Until now, Bachitherium lavocati was just identified in the Pech Desse area , .

Description talk

Brand new specimen MNHN LIM157 presents an identical morphology to the people out of Bachitherium inside having trochleas perhaps not in line. Brand new edges is actually some some other in dimensions and you can higher, this new exterior that being large. This new plantar crest try absent. There is certainly a huge plantar projection of your inner lib out-of brand new proximal trochlea. Considering the dimensions available with Martinez Sudre , which fossil is actually huge (dorso-plantar height: a dozen.cuatro mm and you can size: 13.3) than just specimens from B. viretti and you can B. curtum, and might correspond to huge B. lavocati or perhaps the suggest sized B. guiroutensis (B. insigne are maybe not revealed). Taking a look at the exemplory case of Martinez Sudre and you may Sudre , B. curtum, B. viretti, and you may B. guiroutensis features trochleas less lined up than just towards the B. lavocati. More over, the mouth area of your own proximal trochlea, inside the B. guiroutensis commonly shaped, contrary to B. lavocati. Provided most of these provides, our very own specimen is actually most just like Bachitherium lavocati.

Holotype known specimens information

Holotype. Bouvrain et al. (, Fig. 1) has created sample MNHN Qu4771, a right mandible into the tooth row p2-m3 and you will ramus partly maintained, since the holotype toward types “Amphitragulus” quercyi (that it performs, Fig. 5.1), feabie profiles regarding the Dated collection of Quercy (Tertiary, France).

Introduced specimens. Dated range out of Quercy MNHN Qu4771 proper mandible towards the tooth line p2-m3 and ramus partially managed (Holotype; , Fig. 1; which performs, Fig. 5.1). Balsthal Bannli NMS 7685 best mandible that have p4-m3 (this really works, Fig. 5.2). Pech Desse USTL PDS1312 correct mandible with p2-m3 (, Fig. dos.4c; it performs, Fig. 5.3); USTL PDS1342 kept mandible that have p4-m1; USTL PDS1421 proper maxillary which have D2-D4 (, Fig. 2.4b; this works, Fig. 5.5); USTL PDS1441 left mandible with p2-m3; USTL PDS1803 right mandible which have p2-m3 (, Fig. 14); USTL PDS2134 correct mandible with enamel outlet out of p1 and you can tooth line p2-m1 (which works, Fig. 5.4); USTL PDS2137 left mandible that have m1-m3; USTL PDS2138 right mandible with p3-m1; USTL PDS2139 kept maxillary which have P3-M3 (, Fig. dos.4a; this works, Fig. 5.6). Gaimersheim1 SNSB-BSPG 1952II304 proper m2; SNSB-BSPG 1952II4803 kept maxillary that have P3-M1; SNSB-BSPG 1952II4804 right maxillary which have D3-M1; SNSB-BSPG 1952II4811 remaining mandible which have m2-m3; SNSB-BSPG 1952II4820 leftover mandible which have p4-m1; SNSB-BSPG 1952II4821 proper mandible with m1-m3; SNSB-BSPG 1952II4844 best mandible with m3; SNSB-BSPG 1952II4845 right maxillary which have M1 M3; SNSB-BSPG 1952II4847 left maxillary which have D3-M1; SNSB-BSPG 1952II4851 proper mandible with m1-m3; SNSB-BSPG 1952II4854 kept mandible which have m1; SNSB-BSPG 1952II4858 correct mandible with m1; SNSB-BSPG 1952II4865 remaining mandible with m1-m3; SNSB-BSPG 1952II4867 proper mandible that have d4; SNSB-BSPG 1952II4872 proper mandible with m2-m3; SNSB-BSPG 1952II4873 remaining m3; SNSB-BSPG 1952II4878 remaining mandible having m3; SNSB-BSPG 1952II4884 correct mandible with p3-m2; SNSB-BSPG 1952II4885 proper mandible with p4-m2; SNSB-BSPG 1952II4891 correct M3; SNSB-BSPG 1952II4892 leftover M2; SNSB-BSPG 1952II4894 leftover mandible with p2-m3; SNSB-BSPG 1952II4896 best m1-m2; SNSB-BSPG 1952II4909 proper mandible having m2-m3; SNSB-BSPG 1952II4911 fragmented skull; SNSB-BSPG 1952II4912 correct maxillary which have P2-M1 (that it really works, Fig. 5.7); SNSB-BSPG 1952II4914 leftover mandible with p2-m3; SNSB-BSPG 1952II4917 remaining p4; SNSB-BSPG 1952II4920 remaining maxillary having M1-M3; SNSB-BSPG 1952II4921 best maxillary which have M1-M3; SNSB-BSPG 1952II4924 leftover M2; SNSB-BSPG 1952II4927 proper mandible with m1-m3; SNSB-BSPG 1952II4932 remaining M3; SNSB-BSPG 1952II4933 remaining M3; SNSB-BSPG 1952II4941 best p4; SNSB-BSPG 1952II4942 remaining d3; SNSB-BSPG 1952II4943 remaining mandible having d3-m1; SNSB-BSPG 1952II4944 best maxillary with M2-M3; SNSB-BSPG 1952II4945 left maxillary with D4-M2; SNSB-BSPG 1952II4946 kept mandible having m1-m3; SNSB-BSPG 1952II4947 best maxillary which have D4-M2; SNSB-BSPG 1952II4948 right maxillary that have P3-M1; SNSB-BSPG 1952II4949 proper maxillary which have M1-M3; SNSB-BSPG 1952II4950 left mandible which have p4-m1; SNSB-BSPG 1952II4951 M2 left; SNSB-BSPG 1952II4952 correct mandible having p3, m2-m3.

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