The palaeobiogeographic distribution of the Ludlow‒Přídolí and Devonian Bivalves in the Bolivian Central Andean Basin of Western Gondwana, has been established from the study of twenty-five genera, twenty-two of which are considered cosmopolitan and three endemics. Taking into account the total studied genera, seven correspond to Protobranchia, such as Praectenodonta, Praenucula, Notonucula, Nuculites, Palaeoneilo, Phestia and Solemya. The Autobranchia are diverse; representing the remaining eighteen genera and are represented by the groups Praecardiidae (Praecardium, Cardiola and Dualina), Ambonychiidae (Mytilarca), Pteriomorphia (Leptodesma (Leptodesma), Ptychopteria (Ptychopteria) and Ptychopteria (Actinopteria)), Pectinidae (Pseudaviculopecten), Heteroconchia (Pleurodapis, Cardiomorpha and Paracyclas), Grammysiidae (Grammysia, Andinodesma, Grammysioidea, Sanguinolites and Pholadella) and Modiomorphidae (Modiomorpha and Sphenotomorpha). Three dendrograms based on the Jaccard affinity coefficient, and three palaeogeographic maps were built, in three intervals of time: Ludlow to early Lochkovian, late Lochkovian to Emsian and Eifelian to Frasnian.

The greatest affinity found in the Ludlow-early Lochkovian, in Central Andean Basin was with North Gondwana Basins (Florida and North African Basins) with 62% and with Nova Scotia (Canada) with 58%. During late Lochkovian to Emsian, the greatest affinity found was with South Africa and Paraná Basins with 65% and Uruguay with 40%. During Eifelian to Frasnian times, the affinities remained with South Africa with 74% and Paraná Basins with 73%, Laurentia kept 33% and Amazonas Basin with 24%. According to the distribution of Bivalves, the basin shows a strong influence of equatorial and low palaeolatitude fauna, especially during the Ludlow to the early Lochkovian and during the Eifelian to Frasnian. From this part of Gondwana, between the Ludlow‒Přídolí and the early Lochkovian, sixteen genera are studied throughout the basin, which thirteen are considered cosmopolitan and only three endemics (Notonucula, Pleurodapis and Andinodesma). In contrast, from late Lochkovian to Emsian, eleven cosmopolitan genera colonize a contracted basin, three of which are genera from equatorial palaeolatitude arriving to Western Gondwana in this period (Phestia, Solemya and Pholadella). During the interval from Eifelian to Frasnian, eighteen genera are registered, among which sixteen are cosmopolitan and only two endemics. Those endemic genera appear earlier in the basin (Notonucula and Pleurodapis). The Bivalves do not appear to have been dependent on temperatures or palaeolatitudes between Ludlow to Frasnian. Discussions about dispersal versus vicariant distributions were presented, and different palaeoenvironmental strategies developed by Bivalves were analyzed.

通过对 25 个属的研究确定了西冈瓦纳玻利维亚中部安第斯盆地的 Ludlow-Přídolí 和泥盆纪双壳贝类的古生物地理分布，其中22 个属被认为是世界性的，3 个是地方性的。考虑到研究的总属，有7个属对应于原鳃类，如Praectenodonta、Praenucula、Notonucula、Nuculites、Palaeoneilo、Phestia和Solemya。Autobranchia 是多种多样的；代表剩余的十八个属，并由 Praecardiidae ( Praecardium , Cardiola和Dualina ), Ambonychiidae ( Mytilarca ), Pteriomorphia ( Leptodesma ( Leptodesma ), Ptychopteria ( Ptychopteria ) 和Ptychopteria ( Actinopteria )), Pectinidae ( Pseudaviculopecten ), Heteroconchia ( Pleurodapis , Cardiomorpha and Paracyclas ) , Grammysiidae ( Gramioidea , Andinodesma , Grammys Pholadella ) 和 Modiomorpha 科 ( Modiomorpha和Sphenotomorpha）。三个基于 Jaccard 亲和系数的树状图和三个古地理图在三个时间间隔内建立：Ludlow 到 Lochkovian 早期、Lochkovian 晚期到 Emsian 和Eifelian 到Frasnian 。

在中安第斯盆地的 Ludlow-早期 Lochkovian 中发现的最大亲和力是与北冈瓦纳盆地（佛罗里达和北非盆地）的亲和力为 62%，与新斯科舍省（加拿大）的亲和力为 58%。在 Lochkovian 晚期到 Emsian 期间，发现最大的亲和性是与南非和巴拉那盆地（65%）和乌拉圭（40%）。在 Eifelian 到 Frasnian 时期，与南非的亲缘关系为 74%，与巴拉那盆地的亲缘关系为 73%，Laurentia占 33%，亚马逊盆地占 24%。从双壳贝类的分布来看，该盆地受到赤道和低古纬度动物群的强烈影响，特别是在勒德洛期至洛克科夫期早期和艾菲尔期至弗拉斯期。从冈瓦纳的这一部分，在 Ludlow‒Přídolí 和早期 Lochkovian 之间，研究了整个盆地的 16 个属，其中 13 个属被认为是世界性的，只有三种特有种（ Notonucula、 Pleurodapis和Andinodesma）。相比之下，从洛克科夫晚期到埃姆斯，有 11 个世界性属在一个收缩盆地定居，其中 3 个属在这一时期从赤道古纬到达冈瓦纳西部（ Phestia、 Solemya和波拉代拉）。在从埃弗利安到弗拉斯尼亚的这段时间里，登记了十八个属，其中有十六个是世界性的，只有两个地方性。这些地方性属较早出现在盆地（Notonucula和Pleurodapis）。双壳贝类似乎并不依赖于勒德洛到弗拉斯尼亚之间的温度或古纬度。讨论了分散与变异分布，并分析了双壳类动物开发的不同古环境策略。